Potential DLL Sideloading Of KeyScramblerIE.DLL Via KeyScrambler.EXE

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About the rule

Rule Type

Standard

Rule Description

Detects potential DLL side loading of "KeyScramblerIE.dll" by "KeyScrambler.exe". Various threat actors and malware have been found side loading a masqueraded "KeyScramblerIE.dll" through "KeyScrambler.exe".

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "sa_imageloaded" AND (PROCESSNAME endswith "\KeyScrambler.exe,\KeyScramblerLogon.exe" AND OBJECTNAME endswith "\KeyScramblerIE.dll") AND ((PROCESSNAME notcontains "C:\Program Files (x86)\KeyScrambler\,C:\Program Files\KeyScrambler" OR OBJECTNAME notcontains "C:\Program Files (x86)\KeyScrambler\,C:\Program Files\KeyScrambler") AND (SIGNATURE != "QFX Software Corporation" OR SIGNATURESTATUS != "Valid")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.PROCESSNAME,Action1.PRODUCT_NAME,Action1.OBJECTNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Swachchhanda Shrawan Poudel