alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED Earth Preta PUBLOAD Activity M3"; flow:established,to_server; http.request_line; content:"POST /msdownload/update/v3/static/trustedr/en/"; fast_pattern; pcre:"/^[A-Za-z0-9]{25}/R"; http.header; content:"If-None-Match|3a 20 22|"; pcre:"/^[a-f0-9]{14}\x3a[a-f0-9]{1}/R"; http.user_agent; content:"Microsoft-CryptoAPI/6.1"; http.request_body; content:"FwMD"; startswith; reference:md5,2b1b305139c17bdcaff214d338a43531; reference:url,app.any.run/tasks/409aff8c-bd6b-43d4-b1e8-a2208bf338de/#; classtype:trojan-activity; sid:2050512; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, created_at 2024_01_26, deployment Perimeter, former_category MALWARE, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_10_03, reviewed_at 2024_10_03;)