Rule History

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET ATTACK_RESPONSE Eval Hex Obfuscated JS Inbound"; flow:established,to_client; http.response_body; content:"text|2f|javascript"; content:"eval|28|decodeURIComponent|28|escape|28|"; fast_pattern; pcre:"/^[\x22\x27](?:\x5cx[A-Fa-f0-9]{2}){5,20}/R"; classtype:bad-unknown; sid:2054246; rev:1; metadata:attack_target Client_and_Server, created_at 2024_07_03, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Minor, tag Obfuscated, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_03, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information; target:dest_ip;)