alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Gamaredon APT Related Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/see/guilty.xml"; fast_pattern; startswith; http.header_names; content:!"Referer"; reference:url,twitter.com/souiten/status/1551775083340779521; reference:md5,ee3661a8a6a1acf33e53f52a1e3a5533; classtype:trojan-activity; sid:2037827; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_07_26, deployment Perimeter, malware_family Gamaredon, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_07_26;)