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NullFang

NullFang is a stealth-optimized SMB reconnaissance tool built in Go for offensive security operations. It delivers:

  • High-speed pattern matching (regex, binary carving, leet-speak detection) across: ✓ Office documents (OLE/XML structures) ✓ Configuration files (JSON/YAML/ENV) ✓ Database exports (SQL, NoSQL dumps) ✓ Compressed archives (ZIP, RAR embedded objects)

  • Operational security by design: ▶ No-copy mode avoids file I/O operations, evading EDR file handles and USN journal logging ▶ In-memory analysis minimizes disk/network artifacts ▶ Controlled execution timing to blend with normal SMB traffic

  • Red Team-specific advantages: ✓ Maps User→Host→File→Privilege relationships ✓ Identifies lateral movement paths via credential/configuration patterns ✓ Generates forensic noise assessments pre-operation

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