Fix: reduce AV false positives in runtime stubs#569
Open
mcpolo99 wants to merge 1 commit into
Open
Conversation
Windows Defender flags obfuscated output as malware due to heuristic pattern matching against the combined runtime stub patterns. Changes: - Remove GCHandle.Alloc(Pinned) from Compressor runtime stubs — pinning is unnecessary since the byte[] is locally referenced and won't be GC'd - Remove System.Runtime.InteropServices dependency from runtime stubs - Add instruction count limit (150) to HardeningPhase inlining to prevent aggregating all suspicious patterns into a single .cctor method body All protection features remain fully functional. The GCHandle removal changes the memory management approach without affecting the decryption logic. The hardening limit keeps large protection initializers as separate method calls instead of inlining them, which spreads heuristic patterns across multiple methods.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Windows Defender flags obfuscated output as malware due to heuristic pattern matching against the combined runtime stub patterns.
Changes:
All protection features remain fully functional. The GCHandle removal changes the memory management approach without affecting the decryption logic. The hardening limit keeps large protection initializers as separate method calls instead of inlining them, which spreads heuristic patterns across multiple methods.