alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Suspicious HTTP POST to Free Web Host Atwebpages"; flow:established,to_server; http.method; content:"POST"; http.host; content:".atwebpages.com"; fast_pattern; classtype:misc-activity; sid:2030890; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_09_21, deployment Perimeter, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_21;)