Possible Local Group Membership Enumeration via Security Event 4798

ATT&CK techniques

Discovery

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
- T1087Account Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects Windows Security event 4798 recording enumeration of a user local group membership, generated by the net user Beacon Object File used during Cobalt Strike post-exploitation reconnaissance. Attackers enumerate account and group membership to plan privilege escalation and lateral movement. A high volume or unusual source of these events can indicate automated discovery activity.

Reporting behind it

Related detections9 linkedT1087 — drag to rearrange

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Possible Local Group Membership Enumeration via Security Event 4798

Pivot detection · T1087 · 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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