alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32.FakeAV POST datan.php"; flow:established,to_server; http.uri; content:"/datan.php"; fast_pattern; http.header_names; content:!"User-Agent|0d 0a|"; nocase; classtype:trojan-activity; sid:2013206; rev:4; metadata:created_at 2011_07_06, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_22;)