alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Kimsuky Related Activity (GET)";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/view.php?id=21504"; fast_pattern;
http.host;
content:"kr2959.atwebpages.com";
http.header_names;
content:!"Referer";
reference:md5,72d43ff8f9ee0819e96ed7fd7d9a551a;
reference:url,mp.weixin.qq.com/s/og8mfnqoKZsHlOJdIDKYgQ;
classtype:trojan-activity;
sid:2033590; rev:1;
metadata:attack_target Client_Endpoint, created_at 2021_07_28, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_28;
)