Potential Mpclient.DLL Sideloading Via OfflineScannerShell.EXE Execution
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About the rule
Rule Type
Standard
Rule Description
Detects execution of Windows Defender "OfflineScannerShell.exe" from its non standard directory. The "OfflineScannerShell.exe" binary is vulnerable to DLL side loading and will load any DLL named "mpclient.dll" from the current working directory.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (PROCESSNAME endswith "\OfflineScannerShell.exe" OR ORIGINALFILENAME = "OfflineScannerShell.exe") AND (CWD != "C:\Program Files\Windows Defender\Offline" AND CWD != "" AND isExist(CWD)) select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
frack113
