Malicious BlackBeard SCR Payload Execution (via process_creation)

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-06-02
Updated
2026-08-28

ATT&CK techniques

Execution
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects execution of WebDeepPlayer.scr, a screensaver-disguised executable used to deliver the BlackBeard payload in Boggy Serpens operations. The .scr extension conceals an executable that runs on user interaction, so its launch indicates delivery of the malware to the endpoint.

Related detections9 linkedT1204.002 — drag to rearrange
Suspicious Interlock Fake Updater Executable Execution
Malicious Office Application Loading a User-Path DLL via Regsvr32 or Rundll32 (via process_creation)
Suspicious Program Execution From a Mounted ISO or Disk Image (via process_creation)
SocGholish Fake Browser Update Script Execution (via process_creation)
Uncommon Executable Written to Startup Folder by WinRAR via CVE-2025-8088 Path Traversal (via file_event)
Malicious KB Document Masqueraded Executable Spawned by Script Interpreter via RoKRAT Loader (via process_creation)
Suspicious Double Extension docx Executable Execution (via process_creation)
Malicious LitterDrifter VBScript Execution via wscript trash.dll
Suspicious msiexec Spawning Hidden Command Script (via process_creation)
Malicious BlackBeard SCR Payload Execution (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.