alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Best-targeted-traffic.com Spyware Install"; flow:established,to_server; http.uri; content:"/install.php?"; nocase; content:"&pais="; nocase; content:"unq="; nocase; http.user_agent; content:"Opera|20|"; nocase; depth:6; classtype:pup-activity; sid:2003210; rev:9; metadata:attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_17, mitre_tactic_id TA0009, mitre_tactic_name Collection, mitre_technique_id T1005, mitre_technique_name Data_from_local_system;)