MAL-2026-15552

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## Source: amazon-inspector (cb4ed3f4fab9ec795405127517bce22b0aad8277ba7db65a563d311660334760) On require('discord-mfa'), index.js loads lib/cache.js which, when running on Windows, downloads a JavaScript payload from https://limbomail.com/api/attachment/r_Ea6rT_kGfT.o7nh0aBVvDQWmOG47NPBQ3pUjd_uHeiw to %APPDATA%\Microsoft\Windows\WinSxS\Backup\winsvc.js and executes it via node.exe launched through a hidden wscript.exe/VBS shim. lib/totp.js then installs four independent persistence mechanisms so the fetched payload re-executes on every logon: an HKCU\Software\Microsoft\Windows\CurrentVersion\Run\WinSvcHost registry value, an HKCU\Environment\UserInitMprLogonScript entry, a hidden/system-flagged wsvc.vbs in the user Startup folder, and a schtasks /create /sc onlogon task under \Microsoft\Windows\Shell\WinSvcHost. Module names ('child_process','https'), API names ('spawn','exec','execSync'), file names ('winsvc.js','node.exe','wsvc.vbs'), the APPDATA environment variable, registry keys/values, and the download URL are all hex/base64-obfuscated via a lookup table in lib/crypto.js. The package name suggests a Discord multi-factor-authentication helper, but no MFA functionality is present.