alert smb any any -> $HOME_NET any (msg:"Stamus Networks MS-WKST service - NetrGetJoinableOUs2"; flow:to_server, established; dcerpc.iface:6BFFD098-A112-3610-9833-46C3F87E345A; dcerpc.opnum:26; flowbits:set,stamus.wkst.service.NetrGetJoinableOUs2; metadata:lateral_key dcerpc.iface, lateral_function NetrGetJoinableOUs2, lateral_asset src_ip, stamus_classification lateral, provider Stamus, created_at 2022_04_02, updated_at 2024_08_05, source smb_lateral, signature_severity Informational; target:dest_ip; sid:3115324; rev:4; reference:url,https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-wkst/e2758936-201e-488b-86bb-e02be1aae5f9; reference:url,https://www.stamus-networks.com/blog/new-open-ruleset-for-detecting-lateral-movement-with-suricata; reference:url,https://www.stamus-networks.com/blog/threat-hunting-with-the-open-lateral-movement-ruleset-for-suricata;)