alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspected Gamaredon APT Related Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/death/quickly.xml"; fast_pattern; http.header_names; content:!"Referer"; reference:url,twitter.com/ShadowChasing1/status/1536872171032969216; reference:md5,7a91febc06be0dad3c90f0245456383e; classtype:trojan-activity; sid:2036994; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_06_15, deployment Perimeter, malware_family Gamaredon, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_15;)