alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE [PTsecurity] Trojan.JS.Agent.dwz Checkin 1"; flow:established,to_server; http.method; content:"POST"; http.header; content:"Accept|3a 20|*/*"; content:"auth255|3a 20|login"; fast_pattern; http.request_body; content:"a="; depth:2; pcre:"/^(?:[a-f0-9]{30,60})$/R"; http.content_type; content:"application/x-www-form-urlencoded"; startswith; http.header_names; content:!"Referer|0d 0a|"; classtype:command-and-control; sid:2024849; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_10_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_13;)