alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Downloaded Powershell Script Detects AV Product"; flow:established,to_client; http.response_body; content:"Get|2d|WmiObject|20 2d|Namespace|20 22|root|5c|SecurityCenter"; content:"|22 20 2d|Class|20 22|AntiVirusProduct|22 3b|"; within:30; fast_pattern; reference:md5,8f9269eaded8f1046b1fef6408150e5c; classtype:bad-unknown; sid:2038754; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_07, deployment Perimeter, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_06, reviewed_at 2024_01_26;)