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:"/rose/"; startswith; fast_pattern; content:".dot"; endswith; http.user_agent; content:"|3b 20|ms-office|3b 20|"; http.header_names; content:!"Referer"; reference:md5,3c71395a0863fcc262e9e819ba4907b1; reference:url,twitter.com/ShadowChasing1/status/1402417050174164993; classtype:trojan-activity; sid:2033129; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_06_09, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_09;)