alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Keenvalue Update Engine"; flow:established,to_server; http.host; content:"secure.keenvalue.com"; fast_pattern; startswith; http.header; content:"|0d 0a|Extension|3a|Remote-Passphrase"; reference:url,www.safer-networking.org/index.php?page=updatehistory&detail=2003-11-24; classtype:pup-activity; sid:2000932; rev:10; metadata:created_at 2010_07_30, signature_severity Minor, updated_at 2024_03_01;)