alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP SoftwareTracking Site - Download Report"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:28; content:"/pspwebservices/service.asmx"; http.header_names; content:"|0d 0a|SOAPAction|0d 0a|"; http.request_body; content:"DownloadTracKRecord"; content:"<mac>"; distance:0; content:"<prgname>"; distance:0; content:"<cpuid>"; reference:md5,740c2c6573066bf64718ea773f4ad9a7; classtype:pup-activity; sid:2028864; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_10_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_17;)