Writing Of Malicious Files To The Fonts Folder

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About the rule

Rule Type

Standard

Rule Description

Monitors for the hiding possible malicious files in the C:\\Windows\\Fonts\\ location. This folder doesn't require admin privillege to be written and executed from.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND COMMANDLINE contains "echo,copy,type,file createnew,cacls" AND COMMANDLINE contains "C:\Windows\Fonts" AND COMMANDLINE contains ".sh,.exe,.dll,.bin,.bat,.cmd,.js,.msh,.reg,.scr,.ps,.vb,.jar,.pl,.inf,.cpl,.hta,.msi,.vbs" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Sreeman