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Repsych: Psychological Warfare in Reverse Engineering

Chris Domas

Chris Domas reveals Repsych, abusing IDA Pro graph rendering algorithms to transform binary control flow graphs into visual images and psychological deterrents for analysts.

Summary

Architecture and Background

Your precious 0-day? That meticulously crafted exploit?

Vulnerability Analysis

The perfect foothold? At some point, they'll be captured, dissected, and put on display.

Exploitation and Demonstrations

Reverse engineers. When they begin snooping through your hard work, it pays to have planned out your defense ahead of time.

Remediation and Defensive Strategies

You can take the traditional defensive route - encryption, obfuscation, anti-debugging - or you can go on the offense, and attack the heart and soul of anyone who dare look at your perfect code. With some carefully crafted assembly, we'll show how to break down a reverse engineer by sending them misleading, intimidating, and demoralizing messages through the control flow graphs of their favorite RE tools - turning their beloved IDA (Hopper, BinNavi, Radare, etc) into unwitting weapons for devastating psychological warfare in reverse engineering. Chris is an embedded systems engineer and cyber security researcher, focused on innovative approaches to low level hardware and software RE and exploitation.

Related talks

Main Stage·52 min

  • DEF CON
  • Malware
  • Date: Aug 2016
  • Location: Las Vegas

Chris Eagle · Sk3wlDbg

Chris Eagle and Sk3wlDbg demonstrate integrating architecture-independent CPU emulation into IDA Pro to unpack obfuscated malware and trace execution.

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