HackTool - KrbRelay Execution

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About the rule

Rule Type

Standard

Rule Description

Detects the use of KrbRelay, a Kerberos relaying tool

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (PROCESSNAME endswith "\KrbRelay.exe" OR ORIGINALFILENAME = "KrbRelay.exe") OR (COMMANDLINE contains " -spn " AND COMMANDLINE contains " -clsid " AND COMMANDLINE contains " -rbcd ") OR (COMMANDLINE contains "shadowcred" AND COMMANDLINE contains "clsid" AND COMMANDLINE contains "spn") OR (COMMANDLINE contains "spn " AND COMMANDLINE contains "session " AND COMMANDLINE contains "clsid ") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Florian Roth (Nextron Systems)