Suspicious IO.FileStream
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About the rule
Rule Type
Standard
Rule Description
Open a handle on the drive volume via the \\\\.\\ DOS device path specifier and perform direct access read of the first few bytes of the volume.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "PowerShell Script Block Logged" AND SCRIPTEXECUTED contains "New-Object" AND SCRIPTEXECUTED contains "IO.FileStream" AND SCRIPTEXECUTED contains "\\." select Action1.HOSTNAME,Action1.MESSAGE,Action1.SCRIPTEXECUTED
Detection
Execution Mode
realtime
Log Sources
Windows
Author
frack113
