alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Google Adwords Conversion not from Google"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/pagead/conversion_async.js"; endswith; fast_pattern; http.host; content:!"googleadservices.com"; content:!"doubleclick.net"; content:!"google.com"; classtype:bad-unknown; sid:2030980; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_10_06, deployment Perimeter, deployment SSLDecrypt, performance_impact Moderate, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_06;)