Suspicious GammaLoad VBScript Execution via wscript.exe (via process_creation)

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 Hive0051 GammaLoad activity where wscript.exe launches a VBScript with the batch and engine switches the malware uses to run its loader silently. The combination of the batch flag with an explicit vbscript engine and the additional GammaLoad switches is uncommon in normal scripting. It reveals the scheduled loader execution.

Reporting behind it

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Suspicious GammaLoad VBScript Execution via wscript.exe (via process_creation)

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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