alert smb any any -> [$HOME_NET,$HTTP_SERVERS] 445 (msg:"ET POLICY Powershell Command With Encoded Argument Over SMB - Likely Lateral Movement"; flow:established,to_server; content:"SMB"; depth:8; content:"|00|p|00|o|00|w|00|e|00|r|00|s|00|h|00|e|00|l|00|l|00|"; nocase; distance:0; fast_pattern; content:"|00|-|00|e|00|"; nocase; distance:0; pcre:"/^(?:[NnCcOoDdEeMmAa^]\x00){0,27}/R"; classtype:trojan-activity; sid:2025721; rev:4; metadata:attack_target SMB_Client, created_at 2018_07_17, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, updated_at 2026_04_27, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1570, mitre_technique_name Lateral_Tool_Transfer;)