PIKABOT evade EDR with heavy obfuscation

February 27, 2024
1 min read




Article Summary

TLDR: Heavily Obfuscated PIKABOT Evades EDR Protection

Key Points:

  • PIKABOT is a polymorphic malware that constantly modifies its code to evade EDR systems.
  • Elastic Security Labs discovered new and upgraded PIKABOT campaigns on February 8th.

The article discusses the PIKABOT malware, which uses obfuscation, encryption, and anti-analysis techniques to avoid detection by EDR systems. It constantly modifies its code to evade traditional security measures, making it challenging for EDR solutions to keep up with its changing behaviors.

On February 8th, Elastic Security Labs detected new and upgraded PIKABOT campaigns, showcasing an updated loader, new unpacking methods, and heavy obfuscation for strings decryption. This latest version of PIKABOT has a new code base, breaking previous signatures and tools.

The article delves into the technical details of PIKABOT’s execution flow, highlighting its use of custom decryption, obfuscation techniques, and direct system calls to bypass EDR user-land hooking and debugging. Researchers found that the current version of PIKABOT maintains core functionality while implementing new obfuscation styles, string decryption processes, and network communication changes.

Notably, the article mentions that the PIKABOT malware is being distributed by TA577 through HTML files, which have not been detected by any antivirus programs on VirusTotal. The malware poses a significant threat, and organizations are advised to stay updated on cybersecurity news for protection against such attacks.

Overall, the article emphasizes the sophisticated nature of the PIKABOT malware and the importance of maintaining robust cybersecurity measures to defend against evolving threats in the digital landscape.


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