alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Win32/Geodo Checkin";
flow:established,to_server;
urilen:16<>20;
http.method;
content:"POST";
http.uri;
content:"/"; offset:8; depth:2;
content:"/"; offset:16; depth:3;
pcre:"/^\/[a-f0-9]{7,8}\/[a-f0-9]{7,8}\/$/";
http.user_agent;
content:"|20|MSIE|20|"; fast_pattern;
http.header_names;
content:!"Accept-";
content:!"Referer";
reference:md5,fa50062b7763487b3dd6f9ed0a2f3549;
reference:url,pastebin.com/qnLmpKuQ;
classtype:command-and-control;
sid:2018496; rev:12;
metadata:created_at 2014_05_22, malware_family Win32_Geodo, performance_impact Significant, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_22;
)