alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP SpySheriff Intial Phone Home"; flow:established,to_server; http.uri; content:"trial.php?rest="; fast_pattern; nocase; content:"&ver="; nocase; content:"&a="; nocase; http.header_names; content:!"|0d 0a|User-Agent|0d 0a|"; reference:url,vil.nai.com/vil/content/v_135033.htm; classtype:pup-activity; sid:2003251; rev:9; metadata:created_at 2010_07_30, signature_severity Minor, updated_at 2024_03_02;)