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;)