MAL-2026-13164 Malicious code in dolyame-ui-link (npm)

Malicious package Published
Package
dolyame-ui-link
Registry
npm

What is MAL-2026-13164?

MAL-2026-13164 is a malicious package in dolyame-ui-link, published on 5 Aug 2026.

Official description

index.js requires./loader on load. loader.js reconstructs attacker-controlled hostnames from split string fragments joined via.join("") to yield Cloudflare Workers hosts oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev and oob-worker.cf102-baf.workers.dev, and a DNS-TXT fallback channel under subdomains of wel1.ru. It HTTPS-GETs a platform-specific binary (/pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), writes it to /var/tmp/.cache<hex> or %TEMP%\dotnet_diag<hex>.exe under a disguised filename, chmods 0755, and spawns it detached via /bin/sh -c "<path> &" or cmd.exe /c start /b. lib/telemetry.js carries the same drop-and-exec primitives under an "analytics SDK" cover story. Fires automatically on require of the package, giving arbitrary native code execution on the installer's host.

What should I do about MAL-2026-13164?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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