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79 lines
2.5 KiB
Markdown
79 lines
2.5 KiB
Markdown
# API Reference: Hunting for Lateral Movement via WMI
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## Detection Event IDs
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| Source | Event ID | Description |
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|--------|----------|-------------|
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| Security | 4688 | Process creation (enable command line auditing) |
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| Sysmon | 1 | Process creation with full details |
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| WMI-Activity | 5857 | WMI provider loaded |
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| WMI-Activity | 5860 | WMI temporary event consumer |
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| WMI-Activity | 5861 | WMI permanent event consumer |
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## WMI Lateral Movement Process Chain
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```
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Source Host: Destination Host:
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wmic.exe --> WmiPrvSE.exe
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process call create -> cmd.exe /q /c <command>
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-> 1> \\127.0.0.1\admin$\__<timestamp> 2>&1
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```
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## Key Detection Patterns
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| Pattern | Indicator | MITRE |
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|---------|-----------|-------|
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| WmiPrvSE -> cmd.exe | Remote command execution | T1047 |
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| WmiPrvSE -> powershell.exe | Remote PowerShell via WMI | T1047 |
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| cmd.exe /q /c ... admin$ | WMI output redirection | T1047 |
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| Event 5861 consumer | WMI event subscription persistence | T1546.003 |
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| wmic process call create | Direct WMI process creation | T1047 |
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## Suspicious Child Processes of WmiPrvSE.exe
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| Process | Risk Level | Context |
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|---------|------------|---------|
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| cmd.exe | High | Command execution |
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| powershell.exe | High | Script execution |
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| mshta.exe | Critical | HTA script execution |
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| cscript.exe | High | VBScript/JScript |
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| regsvr32.exe | High | COM object registration |
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| rundll32.exe | High | DLL execution |
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## Command Line Regex Patterns
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```python
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# WMI remote execution via cmd
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r"cmd\.exe\s+/[qQ]\s+/[cC]"
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# Output to admin$ share
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r"\\\\127\.0\.0\.1\\admin\$\\__\d+"
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# WMIC process creation
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r"wmic\s+.*process\s+call\s+create"
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```
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## Sysmon Event 1 Key Fields
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| Field | Description |
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|-------|-------------|
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| Image | Full path of created process |
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| ParentImage | Full path of parent process |
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| CommandLine | Process command line arguments |
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| User | Account that created the process |
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| ProcessGuid | Unique process identifier |
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| ParentProcessGuid | Parent process identifier |
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## WMI-Activity Log Location
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```
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%SystemRoot%\System32\winevt\Logs\Microsoft-Windows-WMI-Activity%4Operational.evtx
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```
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## References
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- MITRE T1047 (WMI): https://attack.mitre.org/techniques/T1047/
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- MITRE T1546.003 (WMI Event Subscription): https://attack.mitre.org/techniques/T1546/003/
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- Detecting WMI Lateral Movement: https://imphash.medium.com/detecting-lateral-movement-101-part-2
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- JPCERT Lateral Movement: https://www.jpcert.or.jp/english/pub/sr/20170612ac-ir_research_en.pdf
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