alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP PrivaZer Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/hcheck_updates.php?country="; startswith; fast_pattern; content:"&discret="; distance:0; reference:md5,eef867108e44942e9655ac71d0360d53; classtype:pup-activity; sid:2029098; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_12_06, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_12_06;)