alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE TROJAN Unk_Banker - Check In"; flow:established,to_server; http.method; content:"POST"; http.user_agent; content:"Opera/11.1"; startswith; http.request_body; content:"&action=check"; fast_pattern; content:"&id="; content:"&version2="; classtype:trojan-activity; sid:2016087; rev:6; metadata:created_at 2012_12_22, signature_severity Major, updated_at 2024_04_14;)