Potential ClickFix Execution Pattern - Registry
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About the rule
Rule Type
Standard
Rule Description
Detects potential ClickFix malware execution patterns by monitoring registry modifications in RunMRU keys containing HTTP/HTTPS links.
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "Registry Event" AND (( ACCESSES = "objectcreated,objectmodified,SetValue" AND OBJECTNAME contains "Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU" ) AND ( CHANGES contains "http://,https://" OR INFORMATION contains "http://,https://" ) AND ( CHANGES contains "%comspec%,bitsadmin,certutil,cmd,cscript,curl,finger,mshta,powershell,pwsh,regsvr32,schtasks,wget,wscript,account,anti-bot,botcheck,captcha,challenge,confirmation,fraud,human,identification,identificator,identity,robot,validation,verification,verify" OR INFORMATION contains "%comspec%,bitsadmin,certutil,cmd,cscript,curl,finger,mshta,powershell,pwsh,regsvr32,schtasks,wget,wscript,account,anti-bot,botcheck,captcha,challenge,confirmation,fraud,human,identification,identificator,identity,robot,validation,verification,verify" ))
select Action1.HOSTNAME,Action1.MESSAGE,Action1.PROCESSNAME,Action1.OBJECTNAME,Action1.OBJECTVALUENAME,Action1.ACCESSES,Action1.USERNAME,Action1.DOMAIN,Action1.PREVVAL,Action1.CHANGES,Action1.INFORMATION
Detection
Execution Mode
realtime
Log Sources
Windows
Author
@Swachchhanda Shrawan Poudel (Nextron Systems)
