CompTIA CySA+ CS0-002 Exam Questions and Answers PDF

Static analysis is the process of reviewing malware files without running them, by using tools such as hex editors, strings, and signature scanners. Static analysis can help extract basic information from malware files, such as file type, size, checksum, metadata, imports, exports, etc. Static analysis can also help identify known malware samples based on their signatures or hashes.

A memory dump is a snapshot of the contents of the random access memory (RAM) of a system at a given point in time. A memory dump can provide valuable information for a forensic examiner who is investigating possible malware compromise on an active endpoint device, such as running processes, open files, network connections, encryption keys, or malware artifacts. Creating a memory dump from RAM should be the first step that the examiner performs, as it preserves the volatile data that could be lost or altered if the system is powered off or rebooted1.

Fuzzing is a technique that involves sending random, malformed, or unexpected inputs to an application to trigger errors, crashes, or vulnerabilities. Fuzzing can be used to test the robustness and security of software, especially when the source code is not available or the input format is complex1. Fuzzing can also simulate abnormal user behavior, such as entering invalid data, clicking on random buttons, or sending malicious requests2.

Fuzzing tools are software programs that automate the process of generating and sending inputs to the application under test. There are different types of fuzzing tools, such as black-box fuzzers, white-box fuzzers, and grey-box fuzzers, depending on the level of information and feedback they have about the application1. Some examples of fuzzing tools are AFL, Peach, and [Sulley].

Polymorphic methods are techniques that allow fuzzing tools to modify or mutate the inputs in different ways, such as changing the length, value, type, or structure of the data. Polymorphic methods can increase the diversity and effectiveness of the inputs and help discover more bugs or vulnerabilities in the application .

Therefore, using fuzzing tools with polymorphic methods would be the best approach to test a new application that simulates abnormal user behavior to find software bugs. This approach would generate a large number of inputs that cover various scenarios and edge cases and expose any flaws or weaknesses in the application’s functionality or security.

The security analyst needs to investigate further the source IP address 10.50.180.49. This IP address belongs to a private network that is not routable on the internet. However, the firewall usage report shows that this IP address has sent traffic to an external destination on port 443 (HTTPS). This could indicate that the IP address is spoofed or compromised by an attacker who is using it to exfiltrate data or communicate with a command-and-control server.