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API Reference: Reverse Engineering Rust Malware

Rust Binary Indicators

Indicator Pattern Description
Panic strings panicked at Rust panic handler messages
Unwrap failure called.*unwrap.*on.*None Option/Result unwrap
Core panic core::panicking Standard library panic
Runtime start std::rt::lang_start Rust runtime entry point
Cargo registry .cargo/registry Crate dependency paths
Rustc version rustc X.Y.Z Compiler version string

Crate Extraction Pattern

Pattern Example Match
crates.io-<hash>/<name>-<ver> crates.io-abc123/reqwest-0.11.22
.cargo/registry/src/<index>/<name>-<ver> .cargo/registry/src/index.crates.io/aes-0.8.3

Suspicious Crate Capabilities

Crate Capability Malware Use
reqwest / hyper HTTP client C2 communication
aes / chacha20 / rsa Encryption Ransomware encryption
ring Crypto primitives Key generation
winapi / winreg Windows API Persistence, injection
sysinfo System info Host enumeration
native-tls TLS Encrypted C2 channel

Python Libraries

Library Version Purpose
re stdlib Pattern matching for Rust indicators
struct stdlib PE header parsing
hashlib stdlib SHA256 sample hashing
json stdlib Report generation

References