alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Softwarereferral.com Adware Checkin"; flow:established,to_server; content:"wmid="; nocase; http_uri; content:"&mid="; nocase; http_uri; content:"&lid="; nocase; http_uri; classtype:pup-activity; sid:2007696; rev:6; metadata:created_at 2010_07_30, signature_severity Minor, updated_at 2019_08_14;)