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mukul975
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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
58 lines
1.8 KiB
Markdown
58 lines
1.8 KiB
Markdown
# API Reference — Hunting for LOLBins Execution in Endpoint Logs
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## Libraries Used
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- **csv**: Parse exported endpoint log CSV files from SIEM or EDR
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- **python-evtx** (Evtx): Parse Windows Sysmon EVTX event logs directly
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- **re**: Regex matching for suspicious command-line patterns
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## CLI Interface
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```
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python agent.py csv --file <csv_path> [--process-col Image] [--cmdline-col CommandLine]
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python agent.py evtx --file <evtx_path>
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```
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## Core Functions
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### `scan_csv_logs(csv_file, process_col, cmdline_col)`
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Scans CSV-exported endpoint logs for LOLBin process executions with suspicious arguments.
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**Parameters:**
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| Name | Type | Description |
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|------|------|-------------|
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| `csv_file` | str | Path to CSV log file |
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| `process_col` | str | Column name for process image path (default: `Image`) |
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| `cmdline_col` | str | Column name for command line (default: `CommandLine`) |
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**Returns:** dict with `total_findings`, `by_binary` counts, `by_mitre` counts, `findings` list.
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### `scan_evtx_sysmon(evtx_file)`
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Parses Sysmon EVTX logs for Event ID 1 (Process Creation) matching LOLBin signatures.
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**Parameters:**
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| Name | Type | Description |
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|------|------|-------------|
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| `evtx_file` | str | Path to Sysmon .evtx file |
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**Returns:** dict with `total_findings` and `findings` with record IDs, binary names, MITRE IDs.
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## LOLBins Detected (14 binaries)
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certutil.exe, mshta.exe, regsvr32.exe, rundll32.exe, bitsadmin.exe, wmic.exe,
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msiexec.exe, cmstp.exe, forfiles.exe, pcalua.exe, csc.exe, installutil.exe,
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msbuild.exe, powershell.exe
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## Output Format
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```json
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{
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"total_findings": 12,
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"by_binary": {"powershell.exe": 5, "certutil.exe": 4},
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"by_mitre": {"T1059.001": 5, "T1140": 4},
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"findings": [{"binary": "...", "mitre": "...", "command_line": "..."}]
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}
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```
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## Dependencies
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```
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pip install python-evtx
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```
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