ClickFix Paste-Jacking Command Written to RunMRU History (via registry_set)

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059Command and Scripting Interpreter
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects download or script-execution commands recorded in the Explorer RunMRU history, the forensic residue left when a user pastes a clipboard-injected command into the Run dialog during a paste-jacking or ClickFix attack. Adversaries rely on this manual execution path to bypass download controls, making mshta or PowerShell cradle strings in RunMRU a useful post-execution indicator.

Reporting behind it

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ClickFix Paste-Jacking Command Written to RunMRU History (via registry_set)

Pivot detection · T1059 · 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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