Possible Lateral Movement PowerShell Spawn
The following analytic detects the spawning of a PowerShell process as a child or grandchild of commonly abused processes like services.exe, wmiprvse.exe, svchost.exe, wsmprovhost.exe, and mmc.exe. It leverages data…
Description
The following analytic detects the spawning of a PowerShell process as a child or grandchild of commonly abused processes like services.exe, wmiprvse.exe, svchost.exe, wsmprovhost.exe, and mmc.exe. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process and parent process names, as well as command-line executions. This activity is significant as it could indicates lateral movement or remote code execution attempts by adversaries. If confirmed malicious, this behavior could allow attackers to execute code remotely, escalate privileges, or persist within the environment.
Detection logic
Detection requirements
- Platform
- Windows
The rule states no platform. This is derived from the 6 ATT&CK techniques it maps to.
- Log source category
- sysmon_eventid_1
Known benign triggers
- False positives are expected from legitimate use of WMI or certain services. Apply additoinal filters as needed.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| attack.mitre.org/techniques/T1021/003/ | 7 |
| attack.mitre.org/techniques/T1021/006/ | 6 |
| attack.mitre.org/techniques/T1047/ | 9 |
| attack.mitre.org/techniques/T1053/005/ | 12 |
| attack.mitre.org/techniques/T1543/003/ | 10 |
From the source
- At source
- Open at source
- Upstream identifier
- cb909b3e-512b-11ec-aa31-3e22fbd008af
- Tagged by the source as
- Active Directory Lateral MovementCISA AA24-241AData DestructionHermetic WiperMalicious PowerShellMicrosoft WSUS CVE-2025-59287Scheduled TasksEndpointendpointSplunk CloudSplunk EnterpriseSplunk Enterprise Securityendpoint
Licence
- Published under
- Apache License 2.0Read the licence
- Attribution
- Required
- Obtained under
- Apache-2.0Read the origin licence
Authorship
- Written by
- Published
- Oct 10, 2026
- Version
- 2