alert http $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET DELETED YourSiteBar Data Submision"; flow:to_server,established; content:"/ist/scripts/istsvc_ads_data.php?version="; http_uri; nocase; reference:url,www.ysbweb.com; classtype:trojan-activity; sid:2001698; rev:8; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_08_22;)