Suspicious Privileged Group Membership Change via net.exe (via process_creation)

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1098Account Manipulation
Priv Esc
- T1098Account Manipulation
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects net.exe adding an account to a privileged local group such as Administrators or Remote Desktop Users. Medusa operators manipulate group membership to escalate privileges and retain access, so an account addition to a sensitive group during an intrusion is a persistence and privilege-escalation signal.

Reporting behind it

Related detections9 linkedT1098 — drag to rearrange

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Malicious Modification of a Computer Account SPN (via security)

Suspicious Massive Group Membership Changes (via security)

Malicious High Risk Active Directory Group Membership Change (via security)

Malicious Account Marked as Sensitive and Cannot Be Delegated Had Its Protection Removed (via security)

Malicious Host Constrained Delegation Settings Changed for Potential Abuse (Rubeus) - Kerberos Only (via security)

Malicious Host Set with Unconstrained Delegation (via security)

Suspicious Privileged Group Membership Change via net.exe (via process_creation)

Pivot detection · T1098 · 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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