T1069.001.md

T1069.001 - Local Groups

Description from ATT&CK

Adversaries may attempt to find local system groups and permission settings. The knowledge of local system permission groups can help adversaries determine which groups exist and which users belong to a particular group. Adversaries may use this information to determine which users have elevated permissions, such as the users found within the local administrators group.

Commands such as net localgroup of the Net utility, dscl . -list /Groups on macOS, and groups on Linux can list local groups.

Atomic Tests

• Atomic Test #1 - Permission Groups Discovery (Local)

• Atomic Test #2 - Basic Permission Groups Discovery Windows (Local)

• Atomic Test #3 - Permission Groups Discovery PowerShell (Local)

Atomic Test #1 - Permission Groups Discovery (Local)

Permission Groups Discovery

Supported Platforms: macOS, Linux

Attack Commands: Run with sh!

if [ -x "$(command -v dscacheutil)" ]; then dscacheutil -q group; else echo "dscacheutil is missing from the machine. skipping..."; fi;
if [ -x "$(command -v dscl)" ]; then dscl . -list /Groups; else echo "dscl is missing from the machine. skipping..."; fi;
if [ -x "$(command -v groups)" ]; then groups; else echo "groups is missing from the machine. skipping..."; fi;

Atomic Test #2 - Basic Permission Groups Discovery Windows (Local)

Basic Permission Groups Discovery for Windows. This test will display some errors if run on a computer not connected to a domain. Upon execution, domain information will be displayed.

Supported Platforms: Windows

Attack Commands: Run with command_prompt!

net localgroup
net localgroup "Administrators"

Atomic Test #3 - Permission Groups Discovery PowerShell (Local)

Permission Groups Discovery utilizing PowerShell. This test will display some errors if run on a computer not connected to a domain. Upon execution, domain information will be displayed.

Supported Platforms: Windows

Attack Commands: Run with powershell!

get-localgroup
Get-LocalGroupMember -Name "Administrators"