secretkey2fa

{"modified":"2026-08-29T02:14:18Z","published":"2026-08-29T02:14:18Z","schema_version":"1.7.4","id":"MAL-2026-15559","summary":"Malicious code in secretkey2fa (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (e1da4c2863f6f6fb95a1ab802243bfde5e04a71e4aa6f0b41f940502d58f501a)\nPackage is advertised as a lightweight TOTP/HOTP library, but its package.json declares a postinstall hook (`node lib/core.js`) that runs a Windows credential stealer on install. The payload enumerates Windows Credential Manager entries matching `MCL|*|Xal*` via inline P/Invoke PowerShell (CredEnumerate/CredRead), reads launcher account JSON files under %APPDATA%\\.minecraft\\launcher_accounts*.json, extracts Microsoft Account refresh tokens (regex `M.C...`) and access tokens, and exchanges them at login.live.com/oauth20_token.srf, Xbox Live, and minecraftservices endpoints to obtain session identifiers. It also builds a Chromium DPAPI decryption chain (PowerShell `[System.Security.Cryptography.ProtectedData]::Unprotect` against `os_crypt.encrypted_key` from Chrome's Local State, plus an AES-256-GCM decipher) to decrypt browser cookie/credential blobs. Harvested data is posted as JSON and multipart file uploads to a hardcoded Discord webhook whose URL is concealed as an XOR-0x3F byte array (`_W`) decoded at runtime along with other sensitive strings (`powershell`, `child_process`, `ProtectedData`, discord user-agent). An `_env()` gate short-circuits on CI, during `npm audit`/`npm pack`, when %APPDATA%/USERPROFILE/USERNAME/COMPUTERNAME are missing, or when `~/Documents` is absent, so the payload only fires on real Windows developer hosts. The 2FA description is a cover story.\n","affected":[{"package":{"ecosystem":"npm","name":"secretkey2fa"},"versions":["1.0.1"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"lib/core.js","sha256":"ef3c79111217b148f1c38e86d99d750eda979dea8f8476c80aa2a34319e2ad91","tlsh":"6433b47612f711253a63e1ad5f4b90197235f5033109de987aacb2842fcf47892b3abd"}],"package_integrity":[{"filename":"secretkey2fa-1.0.1.tgz","hashes":{"sha1":"2f14bdebbc2f0cefc572b6ac074e95116f446e99","sha512_sri":"sha512-yj+i1Nbdf4+637iRNvww6aKscuvMZOm9AJKFgNDkcBTobWvePj9yRa21m14k7ere8Ool2IYMDt87Mobf65GlXA=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/secretkey2fa/v/1.0.1"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-019142","import_time":"2026-08-29T02:22:21.202624361Z","modified_time":"2026-08-29T02:14:18Z","sha256":"e1da4c2863f6f6fb95a1ab802243bfde5e04a71e4aa6f0b41f940502d58f501a","source":"amazon-inspector","versions":["1.0.1"]}]}}