alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Fujacks Activity"; flow:to_server,established; http.header; content:".whboy.net|0d 0a|"; nocase; fast_pattern; http.user_agent; content:"QQ"; bsize:2; classtype:trojan-activity; sid:2015814; rev:14; metadata:created_at 2012_10_18, malware_family Win32_Fujacks, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;)