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mukul975 27c6414ca5 Add folder anatomy (scripts/agent.py + references/api-reference.md) for 648 cybersecurity skills

Complete skill folder anatomy across all cybersecurity skills:
- scripts/agent.py: 80-150 line Python agents using real libraries (impacket,
  boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.)
- references/api-reference.md: real API documentation with method signatures
- LICENSE: MIT license for all skill folders

2026-03-10 21:02:12 +01:00

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API Reference — Hunting for Living-off-the-Land Binaries

Libraries Used

elasticsearch (elasticsearch-py): Query Elastic SIEM for LOLBin process events
python-evtx (Evtx): Parse Windows EVTX event logs for Sysmon process creation
re: Regex matching against suspicious command-line argument patterns

CLI Interface

python agent.py hunt --es-host <url> --index <pattern> [--api-key <key>] [--hours <n>]
python agent.py sysmon --evtx-file <path>

Core Functions

`hunt_lolbins_elastic(es_host, es_index, api_key=None, hours=24)`

Queries Elasticsearch for 12 LOLBin binaries with suspicious argument patterns.

Parameters:

Name	Type	Description
`es_host`	str	Elasticsearch host URL
`es_index`	str	Index pattern (default: `logs-*`)
`api_key`	str	Optional API key
`hours`	int	Lookback window in hours

Returns: dict with detections list (each with binary, mitre, count, events).

`scan_sysmon_log(evtx_file)`

Parses Sysmon EVTX logs for Event ID 1 (Process Creation) matching LOLBin names.

Parameters:

Name	Type	Description
`evtx_file`	str	Path to Sysmon .evtx file

Returns: dict with lolbin_events count and findings list.

LOLBins Covered

Binary	MITRE Technique	Suspicious Pattern Examples
certutil.exe	T1140, T1105	`-urlcache`, `-decode`, `-encode`
mshta.exe	T1218.005	`vbscript:`, `javascript:`, HTTP URLs
regsvr32.exe	T1218.010	`/s /n /u /i:`, `scrobj.dll`
rundll32.exe	T1218.011	`javascript:`, `shell32.dll`
bitsadmin.exe	T1197	`/transfer`, `/download`
wmic.exe	T1047	`process call create`, `/node:`
powershell.exe	T1059.001	`-enc`, `IEX`, `DownloadString`, `-w hidden`

Dependencies

pip install elasticsearch>=8.0 python-evtx

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