alert smb any any -> $HOME_NET any (msg:"Stamus Networks MS-TSCH service - SASec SASetAccountInformation"; flow:to_server, established; dcerpc.iface:378E52B0-C0A9-11CF-822D-00AA0051E40F; dcerpc.opnum:0; flowbits:set,stamus.tsch.service.SASecSASetAccountInformation; metadata:lateral_key dcerpc.iface, lateral_function SASetAccountInformation, lateral_asset src_ip, stamus_classification lateral, provider Stamus, created_at 2022_03_23, updated_at 2024_08_05, source smb_lateral, signature_severity Critical; target:dest_ip; sid:3115117; rev:4; reference:url,https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-tsch/7849c5ca-a8df-4c1d-8565-41a9b979a63d; 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;)