alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Comrerop Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/a/tj.asp?mac="; startswith; fast_pattern; content:"&tid="; distance:0; http.accept_enc; content:"gzip, deflate"; reference:md5,3afe291fa7f71b4930734edcfe2564fc; classtype:trojan-activity; sid:2044139; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_02_06, deployment Perimeter, malware_family Win32_Comrerop, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_06;)