alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Win32/Namsoth.A Checkin/NEWSREELS APT1 Related";
flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"name="; depth:5;
content:"&userid="; distance:0;
content:"&other"; distance:4; within:6;
pcre:"/&userid=\d{4}&other=[MF]/";
reference:md5,a2cd1189860b9ba214421aab86ecbc8a;
reference:url,www.mandiant.com/apt1;
classtype:targeted-activity;
sid:2016439; rev:4;
metadata:created_at 2013_02_20, malware_family Win32_Namsoth_A, signature_severity Major, updated_at 2020_04_23;
)