Malware Analyst Quiz

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1. What is the main purpose of using ‘YARA rules’ in cybersecurity?

To automatically respond to cyber incidents by executing predefined actions

To detect and classify malware samples based on textual or binary patterns

To define the layout and security policies of a corporate network

To encrypt sensitive data before it is transmitted over insecure networks

2. Which of the following is a type of static analysis?

Running the malware in a controlled environment

Observing the behavior of malware in a live system

Monitoring network traffic generated by malware

Analyzing the malware code without executing it

3. Scenario: During a reverse engineering session, you identify a piece of malware that decrypts its payload only when a specific condition is met. You discover that the condition involves checking the system’s language setting. Question: How would you manipulate the environment to trigger the payload decryption?

Disconnect the machine from the internet to prevent the check from reaching the C2 server.

Encrypt the system’s hard drive to secure it from the payload.

Modify the system’s language setting to match the expected condition.

Use a debugger to bypass the conditional check completely.

4. Which of the following best describes ‘sandbox evasion’ techniques used by advanced malware?

Splitting the malware into smaller fragments to evade network-based sandboxes

Detecting the presence of a virtualized environment and altering behavior to avoid detection

Compressing the malware file to bypass file size limits in sandbox analysis tools

Encrypting the malware payload to prevent analysis in a sandbox environment

5. In the context of mobile security, what does ‘rooting’ (Android) or ‘jailbreaking’ (iOS) enable?

Full administrative access to the device’s operating system, bypassing manufacturer restrictions

Enhanced security features beyond what is available through standard configurations

Automatic updates to the latest mobile operating system version

Improved performance and battery life through optimized settings

6. What is ‘packing’ in the context of malware?

Compressing files to save space

Compressing or encrypting a malware executable to evade detection

Using a wrapper to combine multiple malware files into one

Encrypting malware to prevent analysis

7. What is the primary function of the Import Address Table (IAT) in the context of Windows malware analysis?

To encrypt the malware payload to evade detection

To list the APIs imported by a PE file for execution

To keep a log of all malicious activities performed by the malware

To store addresses of the malware’s command and control servers

8. What is a ‘honeypot’ in the context of cybersecurity?

A type of malware

A decoy system designed to attract and analyze attackers and malware

A secure method for transmitting data

A vulnerability in software

9. Which of the following scenarios best demonstrates the use of ‘fuzzing’ in security testing?

Encrypting data to test the strength of cryptographic algorithms

Sending a wide range of inputs to a software program to identify potential vulnerabilities

Analyzing malware in a secure, isolated environment to observe its behavior

Scanning a network for open ports and vulnerable services

10. What is ‘Return-Oriented Programming’ (ROP) used for in the context of exploit development?

To rewrite portions of the target program with custom code

To return the program to a safe state after an exploit attempt

To optimize the performance of the exploit code

To execute shellcode by chaining together end gadgets of existing code sequences

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