alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Possible Sharik/Smoke Loader Microsoft Connectivity check M3";
flow:established,to_server;
urilen:14;
http.method;
content:"GET";
http.uri;
content:"/visualstudio/"; fast_pattern;
http.host;
content:"www.microsoft.com";
http.header_names;
content:"|0d 0a|Cache-Control|0d 0a|Connection|0d 0a|Pragma|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|";
reference:md5,e297f2ed2d162ad925ac140915a21405;
classtype:trojan-activity;
sid:2025440; rev:3;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_03_27, deployment Perimeter, malware_family Smoke_Loader, confidence Medium, signature_severity Major, updated_at 2020_08_25;
)