alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE DonotGroup Maldoc Activity (GET)";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/arm/template.php"; bsize:17; fast_pattern;
http.user_agent;
content:"|3b 20|ms-office|3b 20|";
http.host;
content:"winxpo.live"; bsize:11;
reference:url,twitter.com/ShadowChasing1/status/1407636259367899138;
reference:md5,e8e866e522b66c16d2ed8e345e48f524;
classtype:trojan-activity;
sid:2033169; rev:1;
metadata:attack_target Client_Endpoint, created_at 2021_06_23, deployment Perimeter, malware_family DonotGroup, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_23;
)