Digital Forensics

Question 1

You need to acquire a disk image from a suspect’s computer. Which device should you use to protect the integrity of the source disk?

Answer 1

Write blocker

Question 2

What is write-blocking?

Answer 2

Write-blocking a method to prevent changes to the original source data

It can be implemented through hardware devices or software components.

Question 3

True or false: Write-blocking can only be achieved through hardware devices.

Answer 3

FALSE

Write-blocking can also be a software component that prevents writing back to the original source data.

Question 4

Which method is used to verify that source disk evidence has not been modified?

Answer 4

Hash

Question 5

According to the order of volatility, which evidence should be acquired first?

Answer 5

Memory

Question 6

What is the purpose of chain of custody?

Answer 6

Prevent evidence tampering

Question 7

What is digital forensics defined as?

Answer 7

The application of computer science and data recovery for legal purposes

Digital forensics involves specific techniques to ensure proper governance of acquired digital evidence.

Question 8

What must be ensured about any acquired digital evidence?

Answer 8

It must not be tampered with

If the evidence is potential legal evidence, it needs to be made admissible in a court of law.

Question 9

What is the first step in the digital forensics process?

Answer 9

Gathering of evidence

This step is crucial for the integrity of the digital forensics investigation.

Question 10

True or false: The stakes are low when handling potential legal evidence in digital forensics.

Answer 10

FALSE

The stakes are high because the evidence needs to be admissible in a court of law.

Question 11

Who is responsible for evidence gathering in digital forensic investigations?

Answer 11

digital forensic technicians

They may also act as first responders in digital or cybersecurity incidents.

Question 12

What is crucial to do when working with digital data?

Answer 12

Always work from a copy of the digital data

This is essential to preserve the integrity of the original data.

Question 13

What process is used to create a copy of the source storage devices?

Answer 13

imaging or cloning

This ensures that the original data remains unchanged.

Question 14

Give an example of gathering evidence in digital forensics.

Answer 14

• Removing batteries
• Turning off a suspect mobile phone

These actions help preserve the integrity of the evidence.

Question 15

What is required for the acquisition of digital evidence?

Answer 15

• Right equipment
• Knowledge of usage
• Adherence to chain of custody rules

Law enforcement and private investigation firms employ digital forensics analysts with dedicated workstations.

Question 16

What is a hard drive imaging machine used for?

Answer 16

To copy the contents of one hard disk to another without making changes

It is crucial for maintaining the integrity of the source information in the chain of custody.

Question 17

True or false: Hard drive imaging hardware is typically slower than software drive imaging tools.

Answer 17

FALSE

Hardware is usually faster and more stable than software equivalents.

Question 18

What is a potential trade-off when using hard drive imaging hardware?

Answer 18

Compatibility issues with newer drives and their disk interfaces

This can affect the choice between hardware and software imaging tools.

Question 19

What do software drive imaging tools require to function?

Answer 19

Software drive imaging tools require access to the storage device via an operating system

They run as apps within systems like Windows or Linux.

Question 20

What are mobile device acquisition tools used for?

Answer 20

Mobile device acquisition tools are used to retrieve data from devices like smartphones

They often connect via USB ports to access data from components like SIM cards.

Question 21

What is the function of an external hardware write blocker?

Answer 21

Provides read access only to the suspect storage device

It ensures that the original storage device and its files are not modified.

Question 22

What connects the write blocker to the suspect storage device?

Answer 22

Data cable (e.g., eSATA, USB, SATA, Firewire)

This connection allows the digital forensic workstation to mount and copy data from the suspect device.

Question 23

What is the purpose of a digital forensic workstation?

Answer 23

To properly gather evidence using the correct hardware and software

It can be a laptop or a desktop equipped with specialized forensic tools.

Question 24

What type of software might be installed on a digital forensic workstation for evidence gathering?

Answer 24

• Data recovery tools
• Memory capture tools
• Hard drive imaging software

These tools are essential for analyzing suspect devices and recovering deleted files.

Question 25

True or false: A write blocker allows read and write access to the suspect storage device.

Answer 25

FALSE ## Footnote The write blocker provides read-only access to prevent any modifications.

Question 26

What is generated to verify the accuracy of a disk image during acquisition?

Answer 26

A unique hash of the drive contents ## Footnote Identical hashes indicate that the copy is accurate.

Question 27

What mode are suspect disk partitions mounted in on a digital forensic workstation?

Answer 27

Read-only mode ## Footnote This prevents any changes to the original data during analysis.

Question 28

What must be thoroughly documented to remain compliant with **chain of custody**?

Answer 28

The entire process of evidence acquisition and analysis ## Footnote Documentation is crucial for legal integrity and validation of the evidence.

Question 29

What type of data can be particularly challenging to access in digital forensics?

Answer 29

Data on smartphones ## Footnote Smartphones often have security features that complicate data retrieval.

Question 30

Define IoCs

Answer 30

IoCs are early warning signs of a security incident ## Footnote Examples of IoCs include: * unusualnetwork traffic * system anomalies * unexpected file changes

Question 31

What are the (4) phases of a forensic investigation?

Answer 31

The (4) phases are: 1. Identification 2. Collection 3. Analysis 4. Reporting (presentation)

Question 32

Define **Legal Hold**

Answer 32

**Legal Hold** a directive to preserve potentially relevant data for legal purposes ## Footnote * Failure to comply with legal hold orders can result in legal consequences * Legal teams play a crucial role in issuing legal hold orders

Question 33

What is remediation?

Answer 33

**Remediation** focuses on eliminating the root cause of the incident ## Footnote Actions may include applying patches, removing malware, or fixing vulnerabilities | **It** aims to prevent a recurrence of the same incident

Question 34

***T*** or ***F***: Determining the scope involves identifying affected systems and data

Answer 34

True ## Footnote It helps set the boundaries for incident response efforts | **The** scope may expand as investigations progress

Question 35

Define **Stakeholders**

Answer 35

***Stakeholders*** any individual, group, or organization that can affect, be affected by, or perceive itself to be affected by a decision, activity, or outcome relating to an incident