alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET ADWARE_PUP Win32/Adware.Agent.NSF CnC Checkin M1";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"sid=";
pcre:"/^[A-F0-9]{12}/UR";
content:"s=";
pcre:"/^[A-Z0-9]{9}/UR";
content:"type=";
content:"appname=";
content:"pos=";
content:"pn=";
content:"code=";
http.user_agent;
content:"AppName|3a|";
content:"|3b 20|WinVer|3a|"; distance:0;
content:"paX64|3b 20|"; fast_pattern; distance:0;
content:"AdapterCount|3a|";
reference:md5,204a7ed84357875d0a94c7b9862c378e;
classtype:pup-activity;
sid:2039128; rev:1;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_10_07, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_07;
)