Suspicious LDAP search query executed

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 with eXtended Threat Hunting (XTH)
Detector Tags	LDAP Analytics (Client)
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

Field	Value
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.

Suspicious LDAP search query executed

Synopsis

Field	Value
ATT&CK Tactic	Discovery (TA0007)
ATT&CK Technique	Domain Trust Discovery (T1482)
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.