Reverses proprietary command-and-control protocols: locating send/recv routines, recovering the message framing and encryption/encoding, and reconstructing the command set to build a decoder or emulator. Activates for requests to reverse a custom C2 protocol, decode beacon traffic, or document a malware command structure.
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Do not use this for documented protocols handled by existing dissectors — use the protocol analyzer directly instead of reversing from scratch.
Find send/recv/WSASend/WinHTTP calls (or the framework wrappers) and the buffers they
operate on. These bracket the serialization and crypto.
Trace how outbound buffers are built: magic bytes, length prefixes, sequence/ID fields, and type/opcode fields. Document the header layout.
[ magic(4) ][ len(4 LE) ][ opcode(1) ][ flags(1) ][ payload(len) ]
Identify the transform applied before send / after recv (XOR with embedded key, RC4, AES, base64). Recover keys from the binary or from the key-setup routine.
Map opcodes to handlers (shell, download, upload, sleep/jitter, exit) by following the dispatch switch. Build a table of command → behavior.
Implement a parser/decryptor and run it against captured traffic; confirm it yields coherent commands and recovers the beacon's config.
python scripts/analyst.py decode capture.bin --key 0x5a --magic 4d5a4331
references/api-reference.md for the framing decoder.No reviews yet. Tell others what you thought.
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Reverses Android malware: unpacking APKs, decompiling DEX bytecode to readable Java, auditing the manifest for abused permissions and components, and locating dynamically loaded or native payloads. Activates for requests to analyze an APK, decompile DEX, or investigate a suspicious Android app.
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Analyzes API call traces from a sandbox or API monitor (JSON) to group calls by category, reconstruct high-level behaviors (process injection, file drops, network, crypto), and flag suspicious call sequences. Activates for requests to analyze an API trace, interpret sandbox API logs, or identify behavior from Win32/Native API calls.
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Analyzes Windows Authenticode signatures on PE files: checking for a signature, reading the signer certificate chain, detecting revoked/expired/stolen certs, and recognizing signature-stripping and catalog-signing abuse. Activates for requests to analyze a code signature, verify Authenticode, or assess signer trust on a PE.
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Analyzes banking trojan webinject configurations to extract targeted institutions, injected JavaScript/HTML, and data-theft hooks, mapping the fraud workflow. Activates for requests to analyze banking trojan webinjects, parse a webinject config, or map targeted banks and credential-theft injections.
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Analyzes Python-based malware packaged as PyInstaller/py2exe executables by detecting the packer, locating the embedded archive, and identifying bundled .pyc modules for extraction and decompilation. Activates for requests to analyze compiled Python malware, unpack a PyInstaller binary, or extract pyc modules from a frozen Python executable.
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Analyzes cryptojacking/coinminer malware by extracting mining pool endpoints (stratum), wallet addresses, algorithm and miner identifiers (XMRig and forks), and persistence or resource-control settings from static strings and config. Activates for requests to analyze a cryptominer, extract mining pool and wallet IOCs, or identify coinminer configuration.
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