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STIMSMITH

sliding mutation engine

Technique
First seen 6/9/2026
Last seen 6/9/2026
Evidence 1 chunks

NEIGHBORHOOD

7 nodes · 7 edges
graph · sliding mutation engine · depth=1

RELATIONSHIPS

7 connections
Mishegos ← implements 100% 1e
Mishegos uses the sliding mutation engine to generate x86_64 instruction candidates by extracting windows of up to 15 bytes.
instruction candidate generation uses → 95% 1e
The sliding mutation engine generates instruction candidates of up to 26 bytes and extracts windows for fuzzing.
ModR/M byte uses → 90% 1e
The sliding mutation engine grooms ModR/M fields when generating instruction candidates.
SIB byte uses → 90% 1e
The sliding mutation engine grooms SIB fields when generating instruction candidates.
instruction prefix uses → 95% 1e
The sliding mutation engine includes structurally valid prefixes in its instruction candidates and spends significant time testing different sequences of prefixes.
window-based fuzzing uses → 95% 1e
The sliding mutation engine operates by extracting windows of up to 15 bytes from each instruction candidate.
window-based fuzzing ← part of 90% 1e
Window-based fuzzing is the core mechanism of the sliding mutation engine.