alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Tigger.a/Syzor Control Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/track.cgi"; fast_pattern; http.request_body; content:"u="; startswith; content:"&t="; content:"&v="; content:"&f="; content:"&z="; reference:url,voices.washingtonpost.com/securityfix/2009/02/the_t-i-double-guh-r_trojan_ic.html?wprss=securityfix; reference:url,mnin.blogspot.com/2009/02/why-i-enjoyed-tiggersyzor.html; classtype:command-and-control; sid:2009096; rev:10; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_08;)