Suspicious Exchange Trusted Subsystem Group Enumeration via net

ATT&CK techniques

Discovery

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
- T1069.002Domain Groups
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects net.exe enumerating members of the Exchange Trusted Subsystem domain group, a targeted discovery step used in an espionage campaign against telecoms organizations to locate privileged Exchange service accounts.

Reporting behind it

Related detections9 linkedT1069.002 — drag to rearrange

Suspicious Active Directory Reconnaissance Commands (via process_creation)

Suspicious SOAPHound Style LDAP Query with SDflags and all_with_list via security

Suspicious SOAPHound Null Filter LDAP Query via security

Suspicious SharpHound Group Enumeration LDAP Filter

Suspicious LDAP Security Descriptor Enumeration via SD_FLAGS Control

Suspicious Delegation Discovery LDAP Search Filter via Bitwise OID

Suspicious Kerberoasting LDAP Search Filter for Service Principal Names

Suspicious Service Principal Name Discovery via setspn Query

Malicious Active Directory Enumeration via SharpHound or BloodHound (via process_creation)

Suspicious Exchange Trusted Subsystem Group Enumeration via net

Pivot detection · T1069.002 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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