Suspicious msiexec Spawning Hidden Command Script (via process_creation)

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1204.002Malicious File
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects msiexec.exe launching cmd.exe to run a minimized .cmd script which was the initial delivery chain for EtherRat and TukTuk C2. The MSI dropped and executed a hidden batch file to stage the loader. Command scripts launched minimized from an installer are a common way to hide first-stage execution.

Reporting behind it

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Suspicious msiexec Spawning Hidden Command Script (via process_creation)

Pivot detection · T1204.002 · 9 related

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

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