Challenge Overview

Melissa is a highly skilled malware analyst who has been assigned the task of performing reverse engineering and malware analysis to help avert a potential disaster for the company. Melissa discovers that the malicious code was introduced into the system through a phishing email that was sent to one of the employees. Your task is to analyze by examining the virus's code and retrieving the encrypted files. Decrypt the encrypted.txt file to find the flag. Your target is a machine running on a Ubuntu OS with an IP address of 10.10.1.114. You are required to examine the virus's code and retrieve the encrypted files. Decrypt the encrypted.txt file to find the flag.

What You Will Learn

  • Performing reverse engineering on a malicious Linux binary to understand its functionality and encryption logic.
  • Identifying and extracting hardcoded or dynamically generated decryption keys from the malware\\u2019s code.
  • Understanding how the malicious program encrypts files and how the infection was introduced (e.g., phishing vector).
  • Using the recovered key and identified algorithm to decrypt the encrypted.txt file.
  • Applying structured malware analysis methodology to retrieve the flag and demonstrate incident response capability.

Program Curriculum

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