alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Dropspam.com Spyware Reporting"; flow:established,to_server; http.uri; content:"/reportaddon.cgi?"; nocase; content:"report.cgi?"; nocase; content:"user="; nocase; content:"software="; nocase; classtype:pup-activity; sid:2003440; rev:7; metadata:created_at 2010_07_30, signature_severity Minor, updated_at 2020_08_31;)