Active Directory User Backdoors

Last updated on:

About the rule

Rule Type

Standard

Rule Description

Detects scenarios where one can control another users or computers account without having to use their credentials.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Object Changed or Network Share Accessed" AND ((ALLOWEDTODELEGATETO != ",-" AND isExist(ALLOWEDTODELEGATETO))) OR (DISPLAYNAME = "msDS-AllowedToDelegateTo" OR (OBJECTTYPE = "user" AND DISPLAYNAME = "servicePrincipalName") OR DISPLAYNAME = "msDS-AllowedToActOnBehalfOfOtherIdentity") select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.TARGETDOMAIN,Action1.TARGETMACHINE,Action1.RELATIVETARGETNAME,Action1.SHARENAME,Action1.SHAREPATH,Action1.OBJECTTYPE,Action1.OBJECTNAME,Action1.CHANGES

Detection

Execution Mode

realtime

Log Sources

Active Directory

Author

@neu5ron