Msiexec Spawning Batch Script Child Process

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-10
Updated
2026-09-10

ATT&CK techniques

Defense Evasion
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule detects msiexec.exe spawning a command interpreter that runs a batch file. The GPU miner installer abused msiexec with EnforcedRunAsAdmin to launch core.bat and kick off its infection chain. A signed MSI installer invoking cmd to execute a local batch script is an abuse of the trusted installer for proxy execution.

Related detections9 linkedT1218.007 — drag to rearrange
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Suspicious MSI Installation from Public Music Directory via Msiexec (via process_creation)
Suspicious Msiexec Installation of Remote MSI from WebDAV Share (via process_creation)
Suspicious msiexec Remote Passive Install Loader
Suspicious Silent MSI Installation of Non-Standard BIN Payload via Msiexec (via process_creation)
Suspicious Antivirus Uninstallation via msiexec (via process_creation)
Suspicious Screensaver File Executed as Installer via process_creation
Suspicious Remote MSI Installation from Amazon S3 via msiexec
Suspicious Remote MSI Install of Dokan Driver via msiexec
Msiexec Spawning Batch Script Child Process
Pivot detection · T1218.007 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.