alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP dialno Dialer User-Agent (dialno)"; flow:to_server,established; threshold:type limit, count 5, seconds 60, track by_src; http.user_agent; content:"dialno"; reference:url,www3.ca.com/securityadvisor/pest/pest.aspx?id=453096347; classtype:pup-activity; sid:2003387; rev:13; metadata:created_at 2010_07_30, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_31;)