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ExamsGCIHQuestions#21
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GCIH · Question #21

GCIH Question #21: Real Exam Question with Answer & Explanation

The correct answer is C: Win32/Conflicker. Win32/Conficker is a network worm that specifically targets the MS08-067 vulnerability in the Windows RPC subsystem to propagate across networks automatically.

Malware Analysis & Advanced Persistent Threats

Question

Which of the following is a network worm that exploits the RPC sub-system vulnerability present in the Microsoft Windows operating system?

Options

  • AWin32/Agent
  • BWMA/TrojanDownloader.GetCodec
  • CWin32/Conflicker
  • DWin32/PSW.OnLineGames

Explanation

Win32/Conficker is a network worm that specifically targets the MS08-067 vulnerability in the Windows RPC subsystem to propagate across networks automatically.

Common mistakes.

  • A. Win32/Agent is a generic trojan family that performs actions such as downloading additional malware, but does not exploit the RPC sub-system vulnerability for network worm propagation.
  • B. WMA/TrojanDownloader.GetCodec is a trojan downloader that disguises itself as a media codec to trick users into installing malware, and is not a network worm exploiting RPC vulnerabilities.
  • D. Win32/PSW.OnLineGames is a password-stealing trojan designed to harvest credentials from online games, not a network worm that exploits RPC sub-system vulnerabilities.

Concept tested. Identifying Win32/Conficker as an RPC-exploiting worm

Reference. https://www.microsoft.com/en-us/wdsi/threats/malware-encyclopedia-description?Name=Win32%2FConficker

Topics

#Conficker worm#RPC vulnerability#network worm#Windows exploit

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