alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED PeopleOnPage Ping"; flow:to_server,established; content:"Host|3a| srv.peopleonpage.com"; nocase; http_header; pcre:"/(POST |POST (http|https)\:\/\/[-0-9a-z.]*)\/s\/l\/firstping/i"; reference:url,www.peopleonpage.com; reference:url,www.safer-networking.org/en/threats/602.html; classtype:policy-violation; sid:2001446; rev:12; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)