Open Source Security FundingInitiative

CoBRA open source tool for simplifying mixed boolean arithmetic obfuscation

April 4, 2026Trail of Bits

Trail of Bits releases CoBRA as an open-source tool that simplifies most mixed boolean arithmetic obfuscation expressions at scale, improving reverse engineering workflows for protected code.

99.86% of 73K+ obfuscated expressions, simplified.
CoBRA is a new open-source tool that handles four types of Mixed Boolean-Arithmetic obfuscation where existing tools fail.
Trail of Bits
reverse engineeringdeobfuscationtoolingopen sourcereverse engineering

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