Windows: FakeUpdates/SocGholish execution via wscript loading a zip-based update script

Flags wscript launched from Temp update .js within a .zip to spawn cmd.exe or PowerShell on Windows.

FreeReviewedSigma · High · v5
Product
windows
Category
process_creation
Author
@kostastsale (SigmaHQ), DRL 1.1
Published
2022-06-16
Updated
2026-07-31
title: "Windows: FakeUpdates/SocGholish execution via wscript loading a zip-based update script"
id: 07a18885-03bc-45fd-b7b7-a4b132c93240
status: test
description: This rule identifies Windows process creation where wscript.exe is the parent, launching cmd.exe or PowerShell based on an associated execution chain. It matches a parent command line containing a local Temp path and a zip filename with an update-related .js script, along with common browser process names. This matters because it reflects malware-style staging where a script is launched from a packaged download and then hands off to command-line tooling. Telemetry required is Windows process creation events including parent image/command line and the child image.
references:
  - https://twitter.com/th3_protoCOL/status/1536788652889497600
  - https://twitter.com/1ZRR4H/status/1537501582727778304
  - https://github.com/SigmaHQ/sigma/blob/master/rules-emerging-threats/2022/Malware/SocGholish/proc_creation_win_malware_socgholish_fakeupdates_activity.yml
author: "@kostastsale, Huntrule Team"
date: 2022-06-16
modified: 2024-08-23
tags:
  - attack.execution
  - attack.t1059.001
  - detection.emerging-threats
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    ParentImage|endswith: \wscript.exe
    ParentCommandLine|contains|all:
      - \AppData\Local\Temp
      - .zip
      - update
      - .js
    ParentCommandLine|contains:
      - Chrome
      - Edge
      - Firefox
      - Opera
      - Brave
      - Vivaldi
    Image|endswith:
      - \cmd.exe
      - \powershell.exe
      - \pwsh.exe
  condition: selection
falsepositives:
  - Unlikely
level: high
license: DRL-1.1
related:
  - id: 97805087-93ab-4203-b5cb-287cda6aecaa
    type: derived