Individual skill
analyzing-windows-event-logs-in-splunk
Analyzes Windows Security, System, and Sysmon event logs in Splunk to detect authentication attacks, privilege escalation, persistence mechanisms, and lateral movement using SPL queries mapped to MITRE ATT&CK techniques. Use when SOC analysts need to investigate Windows-based threats, build detection queries, or perform forensic timeline analysis of Windows endpoints and domain controllers.
internal/tools/skills/data/soc-operations/analyzing-windows-event-logs-in-splunk/SKILL.md
Source commit d42f381ad34843e71a42658e5c57290c713e85af
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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Repository context
- Repository stars (not skill ratings)
- 1,313
- Repository last updated
- Nov 8, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- soc Declared skill tag
- splunk Declared skill tag
- windows-events Declared skill tag
- sysmon Declared skill tag
- event-logs Declared skill tag
- mitre-attack Declared skill tag
- active-directory Declared skill tag
- security Derived category
Files and excerpt
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Read excerpt
# Analyzing Windows Event Logs in Splunk
## When to Use
Use this skill when:
- SOC analysts investigate alerts related to Windows authentication, process execution, or AD changes
- Detection engineers build SPL queries for Windows-based threat detection
- Incident responders need forensic timelines of Windows endpoint or domain controller activity
- Periodic threat hunting targets Windows-specific ATT&CK techniques
**Do not use** for Linux/macOS endpoint analysis or network-only investigations.
## Detection Gaps & Validation
- **Index/sourcetype drift:** these queries assume `index=wineventlog` and `index=sysmon`, but forwarders often land Security logs in a different index or under `sourcetype="WinEventLog:Security"` vs `XmlWinEventLog:Security`. The XML sourcetype exposes fields differently (`EventCode` may be `EventID`, `TargetUserName` nested in `EventData`). Run `| tstats count where index=* by index, sourcetype` and verify `EventCode`, `Logon_Type`, `src_ip`, `TargetUserName` are populated — null fields silently zero out the brute-force and spray searches.