alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Gamaredon APT Related Maldoc Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".webm"; endswith; fast_pattern; http.user_agent; content:"|3b 20|ms-office|3b 20|"; http.header_names; content:!"Referer|0d 0a|"; reference:md5,af944c93405d60adc350f94e24a3d5a1; reference:url,twitter.com/souiten/status/1511552820863852544; classtype:trojan-activity; sid:2036210; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_04_13, deployment Perimeter, malware_family Gamaredon, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_16;)