alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Uwamson.A!ml CnC Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"|2f|LIC|3f|action|3d|USE|5f|BATCH|26|clientid|3d|"; startswith; fast_pattern; content:"&modulesid="; distance:0; content:"&BuildVersion="; distance:0; content:"&clientcomputer="; distance:0; http.header_names; content:"|0d 0a|Host|0d 0a|Accept|0d 0a|User-Agent|0d 0a 0d 0a|"; startswith; reference:md5,4b3866b5b5bb3a69c1e786c1ce19ff2d; classtype:command-and-control; sid:2043098; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_12_28, deployment Perimeter, malware_family Win32_Uwamson_A_ml, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_28, reviewed_at 2024_12_24;)