The CA policy EditFlags was queried

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	XDR Agent
Detector Tags	Active Directory Certificate Services Analytics
ATT&CK Tactic	Privilege Escalation (TA0004)
ATT&CK Technique	Valid Accounts (T1078)
Severity	Medium

Description

The CA policy EditFlags was queried.

Attacker's Goals

• Querying this registry value can indicate an attacker is looking for an enabled EDITF_ATTRIBUTESUBJECTALTNAME2 flag.
• When this flag is enabled, it allows users to request certificates with a Subject Alternate Name(SAN).
• This can allow an attacker to obtain a certificate with higher privileges.

Investigative actions

• Check if the action was allowed by the user.
• Monitor certificate enrollments with Subject Alternate Names.
• Check for unusual high privilege users certificate authentications.