alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Drop.Agent.bfsv HTTP Activity (UsER-AgENt)"; flow:established,to_server; http.method; content:"GeT"; http.protocol; content:"HttP"; http.header_names; content:"HoST|0d 0a|"; content:"UsER-AgENt|0d 0a|"; fast_pattern; classtype:trojan-activity; sid:2010129; rev:9; metadata:created_at 2010_07_30, confidence High, signature_severity Major, updated_at 2020_11_02;)