alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE f0xy Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php?admin="; fast_pattern; content:"&id="; content:"&nat="; content:"&os="; content:"&video="; content:"&arch_type="; content:"&v="; content:"&av_list="; http.header_names; bsize:10; content:"|0d 0a|Host|0d 0a 0d 0a|"; content:!"|0d 0a|Referer|0d 0a|"; reference:md5,160634d784c256d29563117554685c31; reference:url,community.websense.com/blogs/securitylabs/archive/2015/01/29/new-f0xy-malware-employs-cunning-stealth-amp-trickery.aspx; classtype:command-and-control; sid:2020340; rev:8; metadata:created_at 2015_01_30, signature_severity Major, updated_at 2024_04_07;)