Suspicious RunMRU Entry Launching LOLBIN via ClickFix Run Dialog

ATT&CK techniques

Execution → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
- T1204.004Malicious Copy and Paste
Persistence
Priv Esc
Defense Evasion
- T1218.005Mshta
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects RunMRU registry values that record LOLBIN commands such as powershell or mshta typed into the Windows Run dialog. Microsoft observed Lumma Stealer ClickFix campaigns instructing victims to paste these commands, leaving artifacts in the RunMRU key. A scripting LOLBIN executed from the Run dialog is unusual for normal users and reveals the social engineering execution step.

Reporting behind it

Related detections9 linkedT1204.004 — drag to rearrange

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ClickFix Paste-Jacking Execution of mshta Retrieving Remote Payload (via process_creation)

Suspicious ClickFix RunMRU Entry Recording LOLBIN Command from Run Dialog

Suspicious mshta Executing Remote Content via ClickFix Lure

Suspicious mshta Launched from Explorer via ClickFix Run Dialog (via process_creation)

Suspicious macOS ClickFix Execution Piping curl to zsh via UNC1069

Suspicious PowerShell Loader Spawned by mshta via UNC5142 ClickFix

Suspicious ClickFix Clipboard PowerShell Execution from Run Dialog

Suspicious RunMRU Entry Launching LOLBIN via ClickFix Run Dialog

Pivot detection · T1204.004 · 9 related

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