Local group enumeration via RPC

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)
ATT&CK Tactic	Discovery (TA0007)
ATT&CK Technique	Permission Groups Discovery: Local Groups (T1069.001), Permission Groups Discovery (T1069)
Severity	Informational

Description

A user enumerated local groups via RPC.

Attacker's Goals

An adversary may leverage local groups discovery to identify privileged groups and escalate privileges.

Investigative actions

• Determine the user, hostname, and process that performed the group enumeration.
• Inspect process, command-line arguments or scripts used.
• Check for any privilege escalation or lateral movement attempts from the source system.
• Check if the tool used to enumerate the local groups is a known or an approved tool.
• Review the logs for suspicious activity from the same host or user.

Variations

Remote local group enumeration via RPC

Synopsis

Field	Value
ATT&CK Tactic	Discovery (TA0007)
ATT&CK Technique	Permission Groups Discovery: Local Groups (T1069.001), Permission Groups Discovery (T1069)
Severity	Informational

Description

A user enumerated local groups via RPC.

Attacker's Goals

An adversary may leverage local groups discovery to identify privileged groups and escalate privileges.

Investigative actions

• Determine the user, hostname, and process that performed the group enumeration.
• Inspect process, command-line arguments or scripts used.
• Check for any privilege escalation or lateral movement attempts from the source system.
• Check if the tool used to enumerate the local groups is a known or an approved tool.
• Review the logs for suspicious activity from the same host or user.