Analytics BIOC Low
✕

Discovery of accounts with pre-authentication disabled via LDAP

A possible discovery of accounts without pre-authentication required via LDAP was performed. Such enumeration may be used during attacks against the organization.

Module:
Identity Analytics
Data source:
XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK tactics: Discovery (TA0007) Credential Access (TA0006)
ATT&CK techniques: Account Discovery (T1087) Steal or Forge Kerberos Tickets: AS-REP Roasting (T1558.004)
Detector tags: LDAP Analytics (Server) LDAP Analytics (Client)
Attacker's goals:

An attacker is attempting to enumerate Active Directory.

Investigative actions:

Check if the process executes LDAP search queries as part of its normal behavior. Investigate the LDAP search query for any suspicious indicators. Correlate logs from the same host or user for related LDAP queries or other unusual activities. Audit accounts flagged as not requiring pre-authentication and verify compliance with security policies. Determine whether the search query is generic. Wide search queries (often using wildcards) tend to be more suspicious. In our case, we are looking for targeted search queries.

Test period:
N/A (single event)
Deduplication:
1 Day
1 variation:
  • Suspicious discovery of accounts without pre-authentication required via LDAP Medium (parent: Low)