alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE APT29/CloakedUrsa Google Drive Authentication (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/token"; bsize:6; endswith; http.user_agent; content:"google|2d|api|2d|dotnet|2d|client"; startswith; http.host; content:"oauth2.googleapis.com"; http.header; content:"refresh_token=1//0czAXEdbKrikVCgYIARAAGAwSNwF-L9IrjcOVo9aYPFogMEutV6W3cSJMh195N7Ty2cHvtpXf3FNQ9QKDHwN5SKG9FmrMSw5fnsI&grant_type=refresh_token&client_id=477421423157-doqkohd8ihvnpgtsnbld4e4kd1lbs01b.apps.googleusercontent.com&client_secret=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"; fast_pattern; reference:url,twitter.com/mossdinger/status/1549327792122527745; classtype:trojan-activity; sid:2037797; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_20, deployment Perimeter, deployment SSLDecrypt, deprecation_reason Age, malware_family APT29, malware_family Cloaked_Ursa, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_12_02, reviewed_at 2024_12_02;)