Suspicious LDAP search query executed

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • XDR Agent
  • Requires:
    • eXtended Threat Hunting (XTH)

Detection Modules

ATT&CK Tactic

Discovery (TA0007)

ATT&CK Technique

Account Discovery (T1087)

Severity

Low

Description

A suspicious and unpopular LDAP search query was executed. This may be indicative of Active Directory domain enumeration, which may be used during attacks against the organization.

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.
  • 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.

Variations

Suspicious LDAP search query executed

Synopsis

ATT&CK Tactic

Discovery (TA0007)

ATT&CK Technique

Account Discovery (T1087)

Severity

High

Description

A suspicious and unpopular LDAP search query was executed. This may be indicative of Active Directory domain enumeration, which may be used during attacks against the organization.

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.
  • 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.