Find sigma rule
Attack: Account Discovery: Domain Account
Adversaries may attempt to get a listing of domain accounts. This information can help adversaries determine which domain accounts exist to aid in follow-on behavior such as targeting specific accounts which possess particular privileges.
Commands such as net user /domain
and net group /domain
of the Net utility, dscacheutil -q group
on macOS, and ldapsearch
on Linux can list domain users and groups. PowerShell cmdlets including Get-ADUser
and Get-ADGroupMember
may enumerate members of Active Directory groups.(Citation: CrowdStrike StellarParticle January 2022)
MITRE
Tactic
- discovery
technique
- T1087.002
Test : Kerbrute - userenum
OS
- windows
Description:
Enumerates active directory usernames using the userenum function of Kerbrute
Executor
powershell
Sigma Rule
- net_connection_win_susp_outbound_kerberos_connection.yml (id: e54979bd-c5f9-4d6c-967b-a04b19ac4c74)