alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Wacapew.C!ml Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/api/orders/Log?processorId="; startswith; fast_pattern; content:"|24 24 24|"; distance:0; content:"+os|24 24 24|"; distance:0; content:"+cpu|24 24 24|"; distance:0; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; content:!"|0d 0a|User-Agent|0d 0a|"; reference:md5,d8fc1d015461025abd2126dce5d9a758; classtype:command-and-control; sid:2037146; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_28, deployment Perimeter, malware_family Win32_Wacapew_C_ml, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_28, reviewed_at 2025_01_06;)