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The Art of Compromising C2 Servers: A Web App Vulns Perspective

Vangelis Stykas

Vangelis Stykas demonstrates how typical web application flaws in abandoned malware C2 infrastructure allow researchers to compromise admin panels and identify threat actors.

Summary

Targeting Abandoned Command and Control Servers

Command-and-control (C2) servers deployed by mobile and Windows malware operators are frequently abandoned after campaigns conclude. Vangelis Stykas investigates the attack surface of exposed C2 backends to uncover adversary infrastructure and operator identities.

Web Application Flaws in Malicious Infrastructure

While reverse engineering malware payloads requires specialized skills, exploiting C2 administrative panels often relies on fundamental web application vulnerabilities easily surfaced by automated security scanners.

Extracting Malware Source Code and Threat Intelligence

Exploiting low-hanging fruit in web panels yields administrative access across botnet endpoints, revealing proprietary malware source code and actionable attribution data regarding cybercrime rings.

Related talks

Main Stage·44 min

  • DEF CON
  • AppSec
  • Date: Jul 2009
  • Location: Las Vegas

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