Suspicious Script Host Executing VBScript from System32 via Command Line

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.005Visual Basic
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects wscript or cscript executing a VBScript located in the System32 directory, an anomaly Parallax RAT creates by staging a network reconnaissance script there and running it via a scheduled task. Legitimate user scripts rarely live in System32. Detecting the execution exposes discovery activity hiding in a system path.

Reporting behind it

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Suspicious Script Host Executing VBScript from System32 via Command Line

Pivot detection · T1059.005 · 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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