National Polytechnic Institute CHFI Practice Test

Physical evidence refers to tangible objects that can be touched, seen, or measured. Cables, removable media, and publications are all examples of physical evidence because they are physical objects that can be collected and analyzed in a criminal investigation. However, an image file on a hard disk is not considered physical evidence because it is a digital file stored on a computer. It cannot be directly touched or measured, making it a form of electronic or digital evidence instead.

Searching can change date/time stamps because when a user accesses files or performs searches on a computer, it can modify the metadata associated with those files, including the date and time stamps. This can potentially tamper with the evidence and make it difficult to establish an accurate timeline of events during the breach. Therefore, it is not recommended for the law firm to search for evidence themselves as it could unintentionally alter crucial information that may be needed for a proper investigation.

Displays protocol statistics and current TCP/IP network connections.

NETSTAT [-a] [-b] [-e] [-f] [-n] [-o] [-p proto] [-r] [-s] [-x] [-t] [interval]

-a..............Displays all connections and listening ports.
-b..............Displays the executable involved in creating each connection or listening
.................port. In some cases well-known executables host multiple independent
.................components, and in these cases the sequence of components involved in
.................creating the connection or listening port is displayed. In this case the
.................executable name is in [ ] at the bottom, on top is the component it called,
.................and so forth until TCP/IP was reached. Note that this option can be time-
.................consuming and will fail unless you have sufficient permissions.
-e..............Displays Ethernet statistics. This may be combined with the -s option.
-f...............Displays Fully Qualified Domain Names (FQDN) for foreign addresses.
-n..............Displays addresses and port numbers in numerical form.
-o..............Displays the owning process ID associated with each connection.
-p proto....Shows connections for the protocol specified by proto; proto may be any
.................of: TCP, UDP, TCPv6, or UDPv6. If used with the -s option to display per-
.................protocol statistics, proto may be any of: IP, IPv6, ICMP, ICMPv6, TCP,
.................TCPv6, UDP, or UDPv6.
-q..............Displays all connections, listening ports, and bound non-listening TCP
.................ports. Bound non-listening ports may or may not be associated with an
.................active connection.
-r...............Displays the routing table.
-s..............Displays per-protocol statistics. By default, statistics are shown for IP,
.................IPv6, ICMP, ICMPv6, TCP, TCPv6, UDP, and UDPv6; the -p option may be
.................used to specify a subset of the default.
-t...............Displays the current connection offload state.
-x..............Displays NetworkDirect connections, listeners, and shared endpoints.
-y..............Displays the TCP connection template for all connections. Cannot be
.................combined with the other options.
interval....Redisplays selected statistics, pausing interval seconds between each
.................display. Press CTRL+C to stop redisplaying statistics. If omitted, netstat
.................will print the current configuration information once.

The Errors-To header specifies an address for mailer-generated errors to be sent to, instead of the sender's address. This header is used to specify an alternate email address where error messages should be directed, allowing the sender to receive bounce messages or other error notifications at a different address.

Jacob's testimony in this case is referred to as authentication. Authentication is the process of verifying the accuracy and integrity of evidence or information. In this scenario, Jacob's testimony is crucial in establishing the authenticity of the technical log files gathered in the investigation. As an experienced computer forensics investigator, his testimony serves to confirm the validity and reliability of the evidence, ensuring its admissibility in court.

The 4th Amendment - bars the government from unreasonable search and seizure of an individual or their private property.

The 1st Amendment - provides several rights protections: to express ideas through speech and the press, to assemble or gather with a group to protest or for other reasons, and to ask the government to fix problems. It also protects the right to religious beliefs and practices. It prevents the government from creating or favoring a religion.

The 5th Amendment - provides several protections for people accused of crimes. It states that serious criminal charges must be started by a grand jury.  A person cannot be tried twice for the same offense (double jeopardy) or have property taken away without just compensation. People have the right against self-incrimination and cannot be imprisoned without due process of law (fair procedures and trials.)

The 10th Amendment - says that the Federal Government only has those powers delegated in the Constitution. If it isn’t listed, it belongs to the states or to the people.

Malvertising: Involves embedding malware-laden advertisements in authentic online advertising channels to spread malware onto the systems of unsuspecting users.

Compromised Legitimate Websites: Often, attackers use compromised websites to infect systems with malware. When an unsuspecting user visits the compromised website, the malware secretly installs itself on the user’s system and thereafter carries out malicious activities.

Social Engineered Click-jacking: Attackers inject malware into legitimate- looking websites to trick users into clicking them. When clicked, the malware embedded in the link executes without the knowledge or consent of the user.

Spearphishing Sites: The technique helps attacker in mimicking legitimate institutions, such as banks, in an attempt to steal passwords, credit card and bank account data, and other sensitive information.

The given Cisco router log entry shows that a packet was denied from the source IP address 66.56.16.77 on UDP port 1029 to the destination IP address 63.78.199.4 on port 161. Therefore, the 63.78.199.4(161) in the log denotes the destination IP address and port number.

In RAID Level 5, data is striped at a byte level across multiple drives, and parity information is distributed among all member drives. This means that each drive in the RAID array contains a portion of the data and a portion of the parity information. This level of RAID offers both increased performance and fault tolerance, as it allows for data recovery in the event of a single drive failure.

The main responsibilities of first responders are:
-- Identifying the crime scene
-- Protecting the crime scene
-- Preserving temporary and fragile evidence
-- Collecting complete information about the incident
-- Documenting all findings
-- Packaging and transporting the electronic evidence
-- Gather preliminary information at the scene

Billy, the computer forensics expert, can use Microsoft Outlook Express to analyze the DBX files. Microsoft Outlook Express is an email client that supports the DBX file format, making it suitable for examining and extracting data from the recovered DBX files.

In this scenario, Smith has made three unsuccessful attempts to guess the PIN code, which has blocked the SIM card. To reset the PIN and gain access to the SIM data, he should ask the Network Operator for a Personal Unlock Number (PUK). The PUK is a unique code provided by the Network Operator that can be used to unlock the SIM card and reset the PIN. By contacting the Network Operator and providing the necessary information, Smith can obtain the PUK and regain access to the SIM data.

A brute force attack is a password cracking technique that uses every possible combination of character sets to guess the correct password. It systematically tries all possible combinations until it finds the correct one. This method is time-consuming and resource-intensive, but it is effective against weak passwords that lack complexity or length. Unlike other techniques like dictionary attacks or rule-based attacks, which rely on pre-existing databases or patterns, a brute force attack does not make any assumptions and tries all possibilities.

The part of the log "%SEC-6-IPACCESSLOGP" extracted from a Cisco router represents that a packet matching the log criteria for the given access list has been detected (TCP or UDP). This log entry indicates that the router has identified a packet that matches the specified criteria in the access list and has logged this event. It is important to monitor these logs to ensure that the network is secure and to troubleshoot any potential issues.

The interface of a hard disk does not contribute to determining the addresses of data. The interface is responsible for connecting the hard disk to the computer and facilitating the transfer of data between the two. It does not have any role in organizing or storing the data on the hard disk. The addresses of data are determined by the combination of the heads, sectors, and cylinders, which are physical components of the hard disk that help locate and access specific data.

In order to investigate the possibility of computer fraud in the finance department, it would be advisable to examine the swap file next. The swap file is a temporary storage area on a computer's hard drive that is used to store data that is currently not being used in RAM. It is possible that the staff member involved in the finance fraud may have saved evidence or traces of their activities in the swap file. Therefore, analyzing the swap file could potentially provide valuable information and help in uncovering any unauthorized activities related to printing cheques.

Another approach to reduce the slack space is to use NTFS, which allows much smaller clusters on large partitions. 

Sniffers that place NICs in promiscuous mode work at the Physical layer of the OSI model. The Physical layer is responsible for the transmission and reception of raw bit streams over a physical medium. By operating at this layer, sniffers can capture all network traffic passing through the network interface card (NIC) without being restricted to specific protocols or ports. This allows them to monitor and analyze network packets regardless of the higher-layer protocols being used.

Lossless compression is the data compression technique that maintains data integrity. Unlike lossy compression, which sacrifices some data in order to achieve higher compression ratios, lossless compression retains all the original data when compressing it. This ensures that the data can be perfectly reconstructed when decompressed, without any loss or alteration. Lossless compression is commonly used in applications where data integrity is crucial, such as archiving, data backup, and transmission of sensitive information.

The correct answer is Most Recently Used (MRU). MRU refers to a list of recently used programs or opened files. It is a feature commonly found in operating systems and software applications that allows users to quickly access their most recently accessed files or programs. This list is typically displayed in a menu or a sidebar for easy access and convenience. The MRU list is constantly updated as the user opens or accesses different files or programs, ensuring that the most recent items are always readily available.

FileSalvage------------------------------------------------------------------------------------------------------------
FileSalvage recovery tool for Mac recovers the lost files, iTunes libraries, iPhoto
collections, and lost data. This tool can recover files from a normal Mac OS
hard drive, USB key, PC disk, Linux disk, FAT32 disk, FLASH card, scratched CD,
Digital Camera, iPod, and file system that are recognized in Mac OS X.
Capsa Network Analyzer---------------------------------------------------------------------------------------
Capsa Free is a network analyzer that allows monitoring of network traffic,
troubleshooting network issues, and analyzing packets. Features include
support for over 300 network protocols (including the ability to create and
customize protocols), MSN, and Yahoo Messenger filters, email monitor and
auto-save, and customizable reports and dashboards.
Features:
• Extended network security analysis
• Versatile traffic & bandwidth statistics
• Advanced network protocol analysis
• Multiple network behavior monitoring
• Automatic expert network diagnosis
Xplico-----------------------------------------------------------------------------------------------------------------
The goal of Xplico is to extract the applications data contained from an internet
traffic capture. For example, from a pcap file Xplico extracts each email (POP,
IMAP, and SMTP protocols), all HTTP contents, each VoIP call (SIP), FTP, TFTP, and
so on. Xplico is an open source Network Forensic Analysis Tool (NFAT).
DriveSpy---------------------------------------------------------------------------------------------------------------
DriveSpy allows forensic examiners to direct information from one sector range to
another. It creates direct disk-to-disk forensic duplicates, processes duplicate
drives of both physical drive geometry and sector translation, processes large hard
drives, hard drives without partitions, slack space, unallocated space etc.

⦿ Data/File Deletion
⦿ Password Protection
⦿ Steganography
⦿ Steganalysis
⦿ Data Hiding in File System Structures
⦿ Trail Obfuscation
⦿ Artifact Wiping
⦿ Overwriting Data/Metadata
⦿ Encryption
⦿ Encrypted Network Protocols
⦿ Program Packers
⦿ Rootkits
⦿ Minimize Footprint
⦿ Exploiting Forensics Tools Bugs
⦿ Detecting Forensics Tool Activities

Simple sequential flat files are created by the raw data acquisition format. These files store data in a sequential manner, where each record is stored one after the other. This format is simple and easy to understand, making it useful for analyzing and processing data sets or suspect drives. Unlike compressed or segmented files, simple sequential flat files do not involve any complex compression or segmentation techniques, making them a straightforward choice for raw data acquisition.

18 U.S. Code § 1466A - Obscene visual representations of the sexual abuse of children
18 U.S. Code § 252
18 U.S. Code § 146A
18 U.S. Code § 2252 - Certain activities relating to material involving the sexual exploitation of minors

Non-forensics staff are responsible for securing the scene, maintaining its security until the Forensic Team arrives, and making notes about the scene. This includes individuals who are not directly involved in forensic investigations such as system administrators, lawyers, and local managers. These tasks require basic knowledge and understanding of scene security protocols and the ability to document relevant information for the Forensic Team.

Active@ Password Changer
Active@ Password Changer is designed for resetting local administrator and user passwords on Windows XP/Vista/2008/2003/2000, and Windows 7 systems in case an administrator’s password is forgotten or lost. Forgotten password recovery software has a simple user interface, supports multiple hard disk drives, detects several SAM databases (if multiple OS were installed on one volume), and provides the opportunity to pick the right SAM before starting the password recovery process. Active@ Password Changer displays a list of all local users. The software user simply chooses the local user from the list to reset the password. With Active@ Password Changer you can log in as a particular user with a blank password.

On Windows Server 2012, the log files are stored by default in the %SystemDrive%\inetpub\logs\LogFiles

18 U.S. Code § 1030 is related to fraud and related activity in connection with computers. This law specifically deals with unauthorized access to computers and computer systems, as well as the theft, destruction, or alteration of information stored on computers. It also covers offenses such as computer fraud, identity theft, and the distribution of malicious software. This law is important in prosecuting cybercrimes and protecting computer systems from unauthorized access and misuse.

In Windows versions newer than Vista and XP, the OS stores the complete path and file or folder name in a hidden file called INFO2. This file remains inside the Recycled or Recycler folder and stores information about the deleted file. It is a master database file and very crucial for the recovery of data. INFO2 contains various details of deleted files such as original file name, original file size, the date and time of deletion, unique identifying number, and the drive number that the file came from.

nbtstat -c: This option shows the contents of the NetBIOS name cache, which contains NetBIOS name-to-IP address mappings.

A verbal formal report is delivered under oath to a board of directors/managers/panel of the jury. This type of report is presented orally and requires the presenter to swear an oath to tell the truth. It is typically used in legal or formal settings where the information presented needs to be accurate and credible. The oath adds an extra level of accountability and ensures that the information provided is reliable and trustworthy.

GIF is a bitmap image format that supports up to 256 distinct colors per frame. The term "8-bit" refers to the color depth of the image, indicating that each pixel in the GIF can be represented by 8 bits, allowing for a maximum of 256 different colors. This limitation in color range makes GIF suitable for simple graphics and animations, but not ideal for displaying complex images with a wide range of colors.

The given answer is the Apache error log because it contains the specific error message "client denied by server configuration" indicating that a client was denied access to a specific file or directory. The log also includes the date, time, and client IP address, which are common details found in Apache error logs.

Cross-Examination refers to the process in a trial where the opposing side is given the opportunity to question a witness. During cross-examination, the opposing attorney aims to challenge the credibility, accuracy, or consistency of the witness's testimony. This is done by asking leading questions and attempting to elicit information that may undermine the witness's account or support the opposing party's case. The purpose of cross-examination is to test the witness's testimony and expose any weaknesses or inconsistencies in their statements.

An Electronic Storage Device Search Warrant allows the first responder to search and seize the victim’s computer components such as:
• Hardware
• Software
• Storage devices
• Documentation
 
If the crime involves the Internet, the first responder needs information about the victim’s computer from the service provider end. A Service Provider Search Warrant allows first responders or investigators to consult the service provider and obtain the available victim’s computer information.
First responders can obtain the following information from the service provider:
• Service records
• Billing records
• Subscriber information

The correct answer is HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\ProfileList. This is the correct path in the Windows Registry Editor to locate Microsoft Security IDs in Windows 7. The other paths mentioned in the question are not relevant to finding Microsoft Security IDs.

The file name "$RIYG6VR.doc" suggests that it is a deleted document file. The presence of the "$" symbol at the beginning of the file name is a common convention used by operating systems to indicate that a file has been deleted or is in the recycle bin. Additionally, the ".doc" extension indicates that it is a Microsoft Word document file. Therefore, the inference that can be made is that the file is a deleted document file.

Adam, the forensic investigator, is investigating an attack on the Microsoft Exchange Server. After examining the PRIV.EDB file, he was able to determine the source of the email and the name of the file that disappeared upon execution. Now, he needs to examine the MIME stream content. To do this, he will examine the PRIV.STM file.

The netstat command is used to display information about network connections on a computer. It provides details such as active connections, listening ports, and the protocol used for each connection. By using this command, Jenifer can gather information about the network connections on the system, including the IP addresses, port numbers, and the state of each connection. This can be helpful in troubleshooting network issues, monitoring network activity, and identifying any suspicious connections.

The NTFS file system uses the $Bitmap file to track vacant vs. in use clusters. As a cluster is either in use or not, it is represented by a zero or a one. A single bit per cluster is enough to store this information. It is literally nothing more than a collection of ones and zeros or a ‘bit array’. Although invisible to the end user, NTFS treats the $Bitmap as ‘just another’ file.

Swap space is an area of the hard drive that is used as virtual memory when the RAM is full. It is a part of the operating system's memory management system. By looking into the swap space, Ivanovich can find information about the running processes that are currently stored there. This can provide him with additional details and insights about the system's activity and resource usage, complementing the information he can gather from the RAM and virtual memory.

The tasklist command with the /v option provides information about the listed processes, including the image name, PID, name, and the number of the session for the process. This option is used to display verbose information about each process, giving a more detailed view of the listed tasks.

In the FAT file system, the OS replaces the first letter of a deleted file name with a hex byte code, E5h. E5h is a special tag that indicates the deleted file.

Recuva is the most suitable tool for Bob's purpose because it is a data recovery software specifically designed for Windows operating systems. It can scan the hard drive and recover deleted or lost files, including personal photos, music, documents, videos, and emails. Since Bob does not have any backup options, Recuva can help him retrieve the lost data from his crashed system. Cain & Abel, Xplico, and Colasoft's Capsa are not data recovery tools, but rather network analysis and password recovery tools, which are not relevant to Bob's situation.

Breakdown of  the given ICCID number:
89 : 254 : 021520 : 014515744
89 – Industry Identifier Prefix (89 for telecommunications)
254 – Country code
021520 – Issuer Identifier Number
014515744 – Individual Account Identification Number

Integrated Circuit Card Identification (ICCID)
ICCID is the 19 or 20-digit serial number of the SIM card, which is identified internationally. It consists of an industry identifier prefix (89 for telecommunications), followed by a country code, an issuer identifier number, and an individual account identification number. This code helps identify the country and the network operator’s name.
These ICCIDs are printed and stored in the SIM card. If an ICCID does not exist on the SIM, get it by using a (U) SIM acquisition tool such as ForensicSIM Toolkit.

The CAN-SPAM act requires that you don't use deceptive subject lines. This means that when sending emails, you should not use subject lines that are misleading or false in order to trick recipients into opening the email. Deceptive subject lines can include false claims, misleading information, or exaggerations that misrepresent the content of the email. By prohibiting the use of deceptive subject lines, the CAN-SPAM act aims to ensure that recipients have accurate information about the content of the emails they receive.

The correct answer is network attack because the anomaly-based intrusion detection system detected a volumetric DDOS (Distributed Denial of Service) attack targeting the main IP of the main web server. A network attack refers to any malicious activity that targets the network infrastructure or resources, such as DDOS attacks, which aim to overwhelm a network or server with a flood of traffic, rendering it inaccessible to legitimate users.

The config.db file stores information about the local Dropbox installation and account, including email IDs linked with the account, current version/build for the local application, the host_id, and local path information. This file is essential for maintaining and managing the Dropbox installation and account settings on a local device.

In Windows Vista and later versions renames the files stored in the Recycle Bin as $Ry.ext, whereas in older versions of Windows, it used be Dxy.ext. In this naming process, “x” represents the drive name, “y” a sequential number starting from 0, and “.ext” being the original file’s extension such as .doc, .docx, .pdf, etc.

Coordinated Universal Time (abbreviated to UTC) is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time at 0° longitude,[1] and is not adjusted for daylight saving time.

Rule-Based Approach - The rule-based approach correlates events according to a specified set of rules (condition-action). Depending on each test result and the combination of the system events, the rule-processing engine analyzes the data until it reaches the final state.
Field-Based Approach - This is a basic approach that compares specific events with single or multiple fields in the normalized data.
Automated Field Correlation - This method checks and compares all the fields systematically and intentionally for positive and negative correlation with each other to determine the correlation across one or multiple fields.

Examining the slack space of a computer's hard drive can provide information about recently deleted files. When files are deleted, they are not immediately erased from the hard drive but rather marked as available space. By examining the slack space, investigators may be able to recover fragments or remnants of these deleted files, which could potentially provide evidence of illegal activity in the alleged software piracy ring.

The correct answer is the Sarbanes-Oxley Act (SOX). This act was passed by the U.S. Congress in 2002 to protect investors from fraudulent accounting activities by corporations. It was enacted in response to a series of high-profile corporate scandals, such as Enron and WorldCom, which involved accounting fraud and deception. The Sarbanes-Oxley Act established stricter regulations and requirements for financial reporting and auditing, aiming to improve transparency, accountability, and integrity in corporate financial practices. It introduced measures such as the creation of the Public Company Accounting Oversight Board (PCAOB) and increased penalties for fraudulent activities.

The value "AA55" is used as the "Boot Record Signature" to indicate the presence of the bootloader. This value acts as a unique identifier for the bootloader, allowing the system to recognize its existence during the booting process.

Regshot is an open-source (LGPL) registry compare utility that allows you to take a snapshot of your registry quickly and then compare it with a second one - done after doing system changes or installing a new software product.

Exhibit Numbering Exhibit numbering or exhibit labeling refers to the process of tagging evidence with sequential number, which includes case and evidence details. This will allow the investigator to easily identify the evidence and know its details. The investigators should mark all the evidence in a pre-agreed format, such as: aaa/ddmmyy/nnnn/zz. Where:
    • aaa are the initials of the forensic analyst or law enforcement officer seizing the equipment.
    • dd/mm/yy is the date of seizure.
    • nnnn is the sequential number of the exhibits seized by aaa, starting with 001 and going to nnnn.
    • zz is the sequence number for parts of the same exhibit (e.g., ‘A’ could be the CPU, ‘B’ the monitor, ‘C’ the keyboard, etc.)

Status and log files stored in data directory include:
1. Process ID file (HOSTNAME.pid), contains the process ID created when the
server starts
2. Error log (HOSTNAME.err), contains the information associated with the
startup and shutdown events, and errors
3. General query log (HOSTNAME.log), logs the client connections and activities
4. Binary log (HOSTNAME-bin.nnnnnn), contains the events that describe the
changes occurred in the database
5. Binary log index (HOSTNAME-bin.index), contains the list of all the binary log
files currently available in the data directory
6. Relay log (HOSTNAMErelay-bin.n), contains the events that describe the
changes occurred in the database
7. Relay log index (HOSTNAMErelay-bin.index), contains the list of all the relay
log files currently available in the data directory
8. Master info file (master.info) created by a replication slave server, that contains
the essential parameters used for
connecting to the master slave
9. Relay log info file (relay-log.info) created by a replication slave server, that
contains the status of relay log processing
10. Slow query log (HOSTNAMEslow.log), a text file that contains statements
which take longer processing time

The following are the Computer Forensics Investigation Methodology:

First Response

Search and Seizure

Collect the Evidence

Secure the Evidence

Data Acquisition

Data Analysis

Evidence Assessment

Documentation and Reporting

Testify as an Expert Witness

Rule 1002: Requirement of Original To prove the content of a writing, recording, or photograph, the original writing , recording, or photograph is required, except as otherwise provided in these rules or by Act of Congress.

Buffer overflow vulnerability of a web application occurs when it fails to guard its buffer properly and allows writing beyond its maximum size. Thus, it overwrites the adjacent memory locations. There are multiple forms of buffer overflow, including a Heap Buffer Overflow and a Format String Attack. The purpose of these attacks is to corrupt the execution stack of the web application.

In hard disk data addressing, addresses are allotted to each physical block of data on a hard disk. This means that the data on the hard disk is divided into physical blocks, and each block is assigned a specific address. This allows the operating system to locate and access the data stored on the hard disk efficiently.

Bayesian Correlation: This approach is an advanced correlation method that assumes and predicts what a hacker can do next after the attack by studying statistics and probability.

Registry Structure within a Hive File
It is essential for a forensic investigator to have a good understanding of the basic components of the registry. This will help them to glean extra information through keyword searches of other locations and sources that include the page file, physical memory, or even the unallocated spaces. By gaining more information about the registry structure, the forensic investigator can have a better understanding of what is possible and how to proceed further.
The registry component cells have a specific structure and hold specific types of information. The different types of cells are:
    • Key cell: It contains Registry key information and includes offsets to other cells as well as the LastWrite time for the key
    • Value cell: It holds a value and its data
    • Subkey list cell: It is made up of a series of indexes pointing to key cells, these all are sub keys to the parent key cell
    • Value list cell: It is made up of a series of indexes pointing to value cells, these all are values of a common key cell
    • Security descriptor cell: It contains security descriptor information for a key cell

ISO 9660 is the correct answer because it is the ISO standard that specifically defines file systems and protocols for exchanging data between optical disks. This standard is widely used for CD-ROMs and DVD-ROMs, ensuring compatibility and interoperability between different optical disk systems. It specifies the file system structure, naming conventions, and file attributes for optical media, allowing for the organization and exchange of data in a standardized format.

Reg.exe𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗
You can edit the Windows Registry with the help of Console Registry Tool or reg.exe.
Reg.exe is a command-line utility with which you can perform almost all the task
which you otherwise can with regedit.exe. Reg.exe in Windows 10/8/7, can be useful
when you want to quickly make a change to the Windows Registry without opening
registry editor and moreover and has the additional facility of being directly usable in
scripts.
DriveSpy𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗
DriveSpy allows forensic examiners to direct information from one sector range to
another. It creates direct disk-to-disk forensic duplicates, processes duplicate
drives of both physical drive geometry and sector translation, processes large hard
drives, hard drives without partitions, slack space, unallocated space etc.
DevCon𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗
DevCon or Device Console, is a command-line tool that displays detailed
information about devices on computers running Windows operating system.
DevCon can be used to enable, disable, install, configure, and remove devices. It
also performs device management functions on local computers and remote
computers.
Features:
    • Display driver and device info
    • Search for devices
    • Change device settings
    • Restart the device or computer
Fsutil𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗𝄗
This command performs the tasks that are related to the file allocation table
(FAT) and NTFS file systems, such as managing reparse points, managing
sparse files, or dismounting a volume. If it is used without parameters, fsutil
displays a list of supported subcommands. The investigator must be logged on
as an administrator or a member of the "administrators" group in order to use
fsutil.

International Mobile Equipment Identifier (IMEI)
The International Mobile Equipment Identifier (IMEI) is a GSM-based unique number that identifies mobile equipment in 15 digits representing the manufacturer, model type, and country in which it is approved. It is different for every GSM, UMTS, and iDEN mobile phone and is usually printed and found on the battery of the mobile phone.
In the 15 digits of IMEI, the first eight digits are known as the Type Allocation Code (TAC), which gives information about the model and origin. For powered-on GSM and UMTS phones, the IMEI can be obtained by keying in *#06#. The IMEI number is used for valid reasons. It is used by GSM to identify the device and even to stop the access to the mobile phone if it has been stolen.

The Master File Table is a database in which information about every file and directory on an NTFS volume is stored. It serves as the central index for the file system, containing metadata such as file names, sizes, permissions, and file locations. This table allows the operating system to quickly locate and access files on the NTFS volume. The Master File Table is a crucial component of the NTFS file system and is responsible for maintaining the organization and structure of files and directories.

Capsa Network Analyzer
Capsa Free is a network analyzer that allows monitoring of network traffic, troubleshooting network issues, and analyzing packets. Features include support for over 300 network protocols (including the ability to create and customize protocols), MSN, and Yahoo Messenger filters, email monitor and auto-save, and customizable reports and dashboards.
Features:
• Extended network security analysis
• Versatile traffic & bandwidth statistics
• Advanced network protocol analysis
• Multiple network behavior monitoring
• Automatic expert network diagnosis

8 bits = 2 nibbles = 1 byte
Understanding Bit, Nibble, and Byte
Bit - A bit, short for binary digit is the smallest unit of data or basic information unit in computing and digital communications.
It can contain only one of the two values represented as 0 or 1. They also represent logical values such as true/false,
yes/no, activation states (on/off), algebraic signs (+/−) or any other two-valued attribute.
Nibble - A nibble, also known as half-byte or tetrade is a collection of four bits or half of an octet in computing. Common
representation of a byte is two nibbles.
Byte - A byte, short for binary term is a digital information unit of data that consists of eight bits. The byte is representation
of the number of bits a system has used to encode one text character. Therefore, it is the smallest addressable memory
unit in many computer architectures. Two hexadecimal digits represent a full byte or octet.

Dependency Walker is a free utility that scans any 32-bit or 64-bit Windows module (exe, dll, ocx, sys, etc.) and builds a hierarchical tree diagram of all dependent modules. For each module found, it lists all the functions that are exported by that module, and which of those functions are actually being called by other modules. Another view displays the minimum set of required files, along with detailed information about each file including a full path to the file, base address, version numbers, machine type, debug information, and more.

Dependency Walker is also very useful for troubleshooting system errors related to loading and executing modules. Dependency Walker detects many common application problems such as missing modules, invalid modules, import/export mismatches, circular dependency errors, mismatched machine types of modules, and module initialization failures.

A rule-based attack is a password cracking technique that uses details such as the length of a password, character sets used to construct the password, etc. It involves creating a set of rules or patterns based on common password construction methods and applying them systematically to crack the password. By analyzing the characteristics of the password, such as the presence of uppercase letters, numbers, special characters, etc., a rule-based attack can efficiently generate potential password combinations to guess the correct password.

Frye Standard
The Frye Standard is a legal act related to the admissibility of scientific examinations or experiments in legal cases. According to this act, any kind of expert opinion based on scientific techniques is admissible, if the technique involved is acceptable by the relevant scientific community. It applies to procedures, principles, and analysis presented in the court cases. Under this act, the supporters of a particular scientific issue should provide a number of experts to speak about the issue in question.
In Daubert 509 US 579 (1993) the Supreme Court conveyed that this act under the Federal Rules of Evidence for accepting expert evidence in federal courts is old- fashioned. However, some states still adhere to the Frye Standard.

The correct answer is GLBA. The Gramm-Leach-Bliley Act (GLBA) is a U.S. law that requires financial institutions to protect their customers' information against security threats. This law applies to companies that offer financial products or services such as loans, financial or investment advice, or insurance. GLBA mandates that these institutions implement safeguards to ensure the security and confidentiality of customer information, as well as protect against unauthorized access to or use of this information.

The Daubert Standard, a legal act established in 1993 by the Supreme Court of the United States, explains about the rule of evidence regarding the admissibility of the expert witnesses’ testimony during the federal legal proceedings. Under this act, the plaintiff or defendant can raise a motion to exclude the unqualified evidence at a jury trial.
In Daubert Standard Act, the Supreme Court passed a rule for federal trial judges to act as “gatekeepers” of scientific evidence. The trial judges should analyze the proffered expert witnesses to decide whether their testimony is both “relevant” and “reliable”. The relevance of a testimony decides whether the expert’s evidence applies to the facts of the case or not. The counsel can opt for Daubert motion before or during the trial to stop the presentation of ineffectual evidence to the jury. The expert’s testimony should be based on the evidence and facts of the case. An expert witness uses the scientific method of investigation to describe that the evidence is reliable and relevant to the case.

The superblock is a record that contains important information about a file system, including its size, block size, empty and filled blocks, inode table size and location, disk block map, usage information, and the size of block groups. It serves as a key data structure in a file system and is typically located at the beginning of the file system. The superblock provides essential metadata that allows the operating system to manage the file system effectively and efficiently.

The presence of the $Recycle.Bin folder in the root directory of the disk indicates that the operating system in use is Windows. This folder is used by Windows operating systems to store deleted files before they are permanently removed. Since the question does not provide any specific details about the version of Windows, we can infer that the operating system is Windows 8.1 based on the available options.

This case requires a criminal investigation because it involves allegations of a serious crime, specifically child abuse and distribution of illicit adult images. A criminal investigation is conducted by law enforcement agencies to gather evidence, identify suspects, and potentially lead to criminal charges being filed. In contrast, a civil investigation typically involves resolving disputes between individuals or organizations and does not involve criminal offenses. An administrative investigation focuses on the internal conduct of an organization or its employees and may result in disciplinary actions or policy changes.

Follow these guidelines when dealing with Microsoft Exchange:
In an organization, various employees connect with each other through servers such as the Microsoft Exchange Server. Therefore, the investigators should not access an active Exchange server. The best way is to create a backup of the server, which will be available for users to connect to the Exchange server. Investigators must collect all the data files associated with the server, as there is more than one file associated with Exchange email. The archive file consists of the PRIV.EDB file, PUB.EDB file, and PRIV.STM file. The files available will vary according to the Exchange server you are dealing with.

    • PRIV.EDB: It is a rich text database file that contains message headers, message text, and standard attachments.
    • PUB.EDB: It is a database file to store public folder hierarchies and contents.
    • PRIV.STM: It is a streaming Internet content file containing video, audio, and other media that are streams of MIMEs.

Most of the backups are part of the forensic process, which is why it is important to be careful with backups and offline storage. An expert should be engaged to restore the server data in the case the investigators are not familiar with the restore process for Exchange servers.

Client mis-association is a wireless access control attack where the attacker sets up a rogue access point outside the corporate perimeter and tricks employees into connecting to it. This attack takes advantage of the fact that clients will automatically connect to a familiar network, even if it is a malicious one. By impersonating a legitimate network, the attacker can intercept sensitive information or launch further attacks on the connected devices. This attack bypasses WLAN access control measures such as AP MAC filters and Wi-Fi port access controls, allowing the attacker to gain unauthorized access to the network.

Sync_config.db is a database file of Google Drive Client containing several records including the Google Drive version, the local sync root path, and the user’s email address. Investigators can read the database files using the DB Browser for SQLite tools to extract the required information and also use the file to recreate the databases and search them for the data.

If the domain controller goes down, it is logical to begin the investigation from the domain controller itself. The domain controller is a critical component in managing and authenticating user accounts, permissions, and network resources within a Windows domain. Its failure can have a significant impact on the overall network functionality. By investigating the domain controller, one can identify the root cause of the issue and take appropriate actions to restore its functionality, ensuring the smooth operation of the network.

DriveSpy allows forensic examiners to direct information from one sector range to another. It creates direct disk-to-disk forensic duplicates, processes duplicate drives of both physical drive geometry and sector translation, processes large hard drives, hard drives without partitions, slack space, unallocated space etc.

Direct examination refers to the process of the witness being questioned by the attorney who called them to the stand. During direct examination, the attorney asks open-ended questions to elicit testimony that supports their case. The purpose of direct examination is to present the witness's version of events and to establish the facts in a favorable light. This allows the attorney to control the narrative and present evidence that supports their client's position.

530: Logon Failure - Account logon time restriction violation
The logon failed because the user attempted to log on outside the account's hour or day of week restrictions. To determine if the user was present at this computer or elsewhere on the network, see the Logon Types chart in event 528. 
Event 530 is logged on the workstation or server where the user failed to log on. Event 530 is logged on a domain controller only when a user fails to log on to the domain controller itself (such as at the console or through failure to connect to a shared folder). On workstations and servers, event 530 will be generated only by an attempt to log on with a domain account; local accounts do not offer time restrictions. 
To identify the source of network logon failures, check the Workstation Name and Source Network Address fields. 
Logon Process and Authentication Package will vary according to the type of logon and authentication protocol used.