alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Kuwo Music Installer Log"; flow:established,to_server; http.request_line; content:"POST|20|/music.yl|20|"; startswith; fast_pattern; http.user_agent; content:"curl/"; startswith; http.request_body; pcre:"/(SU5TVEFMTF9JTkZP|lOU1RBTExfSU5GT|JTlNUQUxMX0lORk)/"; reference:md5,9387e26f309874d834d4bb699808654d; classtype:pup-activity; sid:2034907; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_01_12, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_13, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1496, mitre_technique_name Resource_Hijacking;)