alert tcp any any -> $HOME_NET any (msg:"ET NETBIOS DCERPC DCOM ExecuteShellCommand Call - Likely Lateral Movement"; flow:established,to_server; content:"|00|E|00|x|00|e|00|c|00|u|00|t|00|e|00|S|00|h|00|e|00|l|00|l|00|C|00|o|00|m|00|m|00|a|00|n|00|d|00|"; content:!"S|00|Q|00|L|00|C|00|m|00|d|00|P|00|a|00|r|00|s|00|e|00|r|00|E|00|x|00|e|00|c|00|u|00|t|00|e|00|r"; reference:url,enigma0x3.net/2017/01/05/lateral-movement-using-the-mmc20-application-com-object/; reference:url,enigma0x3.net/2017/01/23/lateral-movement-via-dcom-round-2/; reference:url,attack.mitre.org/techniques/T1175/; classtype:bad-unknown; sid:2027189; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_04_11, deployment Internal, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_05_06, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1570, mitre_technique_name Lateral_Tool_Transfer;)