alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Zbot/Beomok/PSW - HTTP POST"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php?i="; fast_pattern; nocase; content:"&o="; http.header_names; content:!"User-Agent|0d 0a|"; classtype:trojan-activity; sid:2009448; rev:6; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2020_04_22;)