Hunts malicious PowerShell using script-block (EID 4104) and module logging: scoring encoded commands, download cradles, AMSI/logging bypass, and in-memory execution, then decoding payloads for triage. Activates for requests to hunt malicious PowerShell, analyze script-block logs, or detect encoded command abuse.
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Do not use simple keyword blocklists as the sole method — admins legitimately use many of the same cmdlets; score combinations and decode before judging.
Pull EID 4104 script-block text (and EID 4103 module logging) over the hunt window. Reassemble multi-part script blocks before analysis.
Weight combinations rather than single keywords: -EncodedCommand, IEX/Invoke-Expression
with Net.WebClient/Invoke-WebRequest, FromBase64String, -w hidden -nop, AMSI strings,
and [Ref].Assembly reflection.
python scripts/analyst.py score events.json
Base64-decode -EncodedCommand (UTF-16LE) and recover layered encodings to read the real
intent (download URLs, in-memory loaders).
Compare against normal admin activity; for survivors, pull the parent process, user, host, and network connections to confirm.
Validate true positives, escalate to IR, and convert the scoring logic into a detection rule.
IEX alone) and drowning in admin noise.-EncodedCommand is UTF-16LE, producing garbled decodes.references/api-reference.md for the scorer/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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