alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/TrojanDropper.Agent.SSQ Variant Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/stanvac/Cadastro.php?pc="; startswith; fast_pattern; content:"&serial="; distance:0; content:"&versao="; distance:0; content:"&win="; distance:0; http.user_agent; content:"Mozilla|2f|3|2e|0|20 28|compatible|3b 20|Indy|20|Library|29|"; bsize:38; reference:md5,e9c8165780bc61a7a72e8a864e6cc3c9; classtype:trojan-activity; sid:2044960; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_14, deployment Perimeter, malware_family Win32_TrojanDropper_Agent_SSQ, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_14, reviewed_at 2024_12_11;)