Use NTFS Short Name in Image

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About the rule

Rule Type

Standard

Rule Description

Detect use of the Windows 8.3 short name. Which could be used as a method to avoid Image based detection

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND PROCESSNAME contains "~1.bat,~1.dll,~1.exe,~1.hta,~1.js,~1.msi,~1.ps1,~1.tmp,~1.vbe,~1.vbs,~2.bat,~2.dll,~2.exe,~2.hta,~2.js,~2.msi,~2.ps1,~2.tmp,~2.vbe,~2.vbs" AND PARENTPROCESSNAME != "C:\Windows\explorer.exe" AND (PARENTPROCESSNAME notendswith "\WebEx\WebexHost.exe" AND PARENTPROCESSNAME notendswith "\thor\thor64.exe" AND PROCESSNAME != "C:\PROGRA~1\WinZip\WZPREL~1.EXE" AND PROCESSNAME notendswith "\VCREDI~1.EXE") 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, Nasreddine Bencherchali (Nextron Systems)