InvalidSign vs EvilClippy: 2026 Comparison
InvalidSign is a free offensive security tool. EvilClippy is a free offensive security tool. Compare features, ratings, integrations, and community reviews side by side to find the best offensive security fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Red team operators and offensive security researchers validating endpoint detection gaps will find InvalidSign useful for its straightforward approach to signature evasion through hash manipulation of legitimately signed binaries. The tool is free and open-source, lowering barriers to testing your own defensive posture. This is not a replacement for behavioral detection tuning or a tool for teams whose EDR already flags execution context anomalies; InvalidSign assumes signature-based controls remain your primary detection layer.
Red teamers and penetration testers validating macro-based attack chains will find EvilClippy indispensable; it generates weaponized Office documents with VBA obfuscation and sandbox evasion in minutes, cutting reconnaissance time on engagements where social engineering is the attack vector. The 2,235 GitHub stars and active maintenance across Windows, macOS, and Linux indicate it's the standard tool for this exact workflow. Skip it if your objective is testing detection tuning or EDR response; EvilClippy prioritizes payload delivery over post-compromise simulation, so teams hunting for evasion gaps will need to pair it with endpoint logging and monitoring separately.
