GCIH · Question #140
John works as a professional Ethical Hacker. He is assigned a project to test the security of Which of the following statements are true about rootkits? Each correct answer represents a complete…
The correct answer is B. They allow an attacker to set a Trojan in the operating system and thus open a backdoor C. They allow an attacker to replace utility programs that can be used to detect the attacker's D. They allow an attacker to run packet sniffers secretly to capture passwords. Rootkits provide persistent, stealthy post-exploitation access by installing backdoors, replacing OS utilities, and running hidden sniffers - but they do not conduct buffer overflow exploits, which are a separate initial exploitation technique.
Question
John works as a professional Ethical Hacker. He is assigned a project to test the security of Which of the following statements are true about rootkits? Each correct answer represents a complete solution. Choose all that apply.
Options
- AThey allow an attacker to conduct a buffer overflow.
- BThey allow an attacker to set a Trojan in the operating system and thus open a backdoor
- CThey allow an attacker to replace utility programs that can be used to detect the attacker's
- DThey allow an attacker to run packet sniffers secretly to capture passwords.
How the community answered
(38 responses)- A8% (3)
- B92% (35)
Why each option
Rootkits provide persistent, stealthy post-exploitation access by installing backdoors, replacing OS utilities, and running hidden sniffers - but they do not conduct buffer overflow exploits, which are a separate initial exploitation technique.
Buffer overflow is an exploitation technique used to gain initial code execution or escalate privileges before rootkit installation - the rootkit itself operates after exploitation has already succeeded and does not perform buffer overflows.
Rootkits commonly install Trojans and create backdoors within the OS kernel or system files, giving the attacker persistent remote access that survives reboots and initial vulnerability remediation.
A defining capability of rootkits is replacing or patching legitimate OS utilities such as ls, ps, and netstat with malicious versions that omit attacker-controlled files and processes from output, defeating standard detection methods.
Rootkits can install packet sniffers at the kernel level and run them invisibly outside the OS process list, silently capturing plaintext credentials and sensitive network traffic.
Concept tested: Rootkit capabilities - backdoors, utility replacement, and covert sniffing
Source: https://www.cisa.gov/sites/default/files/publications/Malware_and_Rootkit_Awareness_0.pdf
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