seikaikyo/hunting-for-startup-folder-persistence
external/anthropic-cybersecurity-skills/skills/hunting-for-startup-folder-persistence/SKILL.md
Detects T1547.001 startup folder persistence by monitoring Windows startup directories for suspicious file creation, cross-referencing Autoruns entries, and running a Python watchdog script for real-time filesystem monitoring. Use when hunting for malware or implants that survive reboot via startup-folder placement, or when validating autoruns/EDR findings against known-good startup baselines.
$ install --global
skillsauthnpx skillsauth add seikaikyo/dash-skills hunting-for-startup-folder-persistenceInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Aug 14, 2026, 3:57 AM194.8s3 files scanned
SKILL.md
- name:
- hunting-for-startup-folder-persistence
- description:
- Detects T1547.001 startup folder persistence by monitoring Windows startup directories for suspicious file creation, cross-referencing Autoruns entries, and running a Python watchdog script for real-time filesystem monitoring. Use when hunting for malware or implants that survive reboot via startup-folder placement, or when validating autoruns/EDR findings against known-good startup baselines.
- domain:
- cybersecurity
- subdomain:
- threat-hunting
- version:
- 1.0
- author:
- mahipal
- license:
- Apache-2.0
Hunting for Startup Folder Persistence
Overview
Attackers use Windows startup folders for persistence (MITRE ATT&CK T1547.001 — Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder). Files placed in %APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup or C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup execute automatically at user logon. This skill scans startup directories for suspicious files, monitors for real-time changes using Python watchdog, and analyzes file metadata to detect persistence implants.
When to Use
- When investigating security incidents that require hunting for startup folder persistence
- When building detection rules or threat hunting queries for this domain
- When SOC analysts need structured procedures for this analysis type
- When validating security monitoring coverage for related attack techniques
Prerequisites
- Python 3.9+ with
watchdog,pefile(optional for PE analysis) - Access to Windows startup folders (user and all-users)
- Windows Event Logs for Event ID 4663 correlation (optional)
Steps
- Enumerate all files in user and system startup directories
- Analyze file types, creation timestamps, and digital signatures
- Flag suspicious file extensions (.bat, .vbs, .ps1, .lnk, .exe)
- Check for recently created files (< 7 days) as potential implants
- Monitor startup folders in real-time using watchdog FileSystemEventHandler
- Correlate with known legitimate startup entries
- Generate threat hunting report with T1547.001 MITRE mapping
Expected Output
- JSON report listing all startup folder contents with risk scores, file metadata, and suspicious indicators
- Real-time monitoring alerts for new file creation in startup directories
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