huntrule

Windows Process Command Line: Suspicious Inline VBScript with UN2452-Like Keywords

Alerts on Windows command lines containing inline VBScript keywords and registry access indicators matching the UNC2452 UN2452 pattern.

FreeReviewedSigma · High · v5
Product
windows
Category
process_creation
Author
Florian Roth (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2021-03-05
Updated
2026-07-31
AnalysisDetection

ATT&CK techniques

Persistence → Priv Esc

  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 flags Windows process creations whose command lines contain a set of inline VBScript keywords commonly associated with UNC2452-style scripting behavior. The combination of VBScript execution, object creation, registry reading, and window-closing patterns can indicate automated script-driven persistence or privilege-related activity. It relies on process creation telemetry, specifically the full CommandLine content and a negative match excluding startup Run key paths.

Reporting behind it

Related detections9 linkedT1547.001 — drag to rearrange
Suspicious XWorm Persistence Run Key Pointing to Batch Loader via ScreenConnect Lure (via registry_set)
Suspicious Run Key Persistence Named AppResolver (via registry_set)
Suspicious SystemBC Persistence via Run Key to ProgramData Script
Suspicious Interlock RAT Persistence via HKCU Run Key Registration to AppData Payload (via process_creation)
Suspicious SOCKS Proxy Persistence via SystemBC PowerShell Run Key
Suspicious Run Key Persistence Referencing PowerShell Script via registry_set
Malicious Startup Persistence via WindowsDefenderSync Shortcut (via file_event)
Malicious PXA Stealer Persistence via Windows Update Service Run Key (via registry_set)
Suspicious NetSupport client32 Persistence via Run Key from ProgramData
Windows Process Command Line: Suspicious Inline VBScript with UN2452-Like Keywords
Pivot detection · T1547.001 · 9 related

Changelog

v5
  1. v5
    Candidate ingested via manual entry.2026-07-31
  2. v4
    Candidate ingested via manual entry.2026-07-31
  3. v3
    Candidate ingested via manual entry.2026-07-31
  4. v2
    Candidate ingested via manual entry.2026-07-31
  5. v1
    No changelog recorded for this version.2026-07-30

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