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Malicious package

dolyame-ui-navigationnpm

Advisory published Updated

dolyame-ui-navigation is a confirmed malicious npm package (MAL-2026-13170) that executes malicious code on install (malicious version 35.7.3). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in dolyame-ui-navigation (npm)

MAL-2026-13170
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall dolyame-ui-navigation

What this malware does

The package advertises itself as a UI navigation toolkit, but its main entry (index.js) require()s./compat.js, which on load fetches a platform-specific executable from hardcoded Cloudflare Workers hosts assembled via array-join to evade static analysis (oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev) and falls back to DNS-TXT resolution against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The downloaded payload is written to /var/tmp or %TEMP% under disguised names (dotnet_diag<hex>.exe,.cache_<hex>), chmod 0755, and spawned detached via /bin/sh -c on POSIX or cmd /c start /b on Windows. lib/telemetry.js contains a parallel write-chmod-spawn pipeline under WorkerHost/NativeProfiler class names with base64-decoded buffer chunks, dynamically concatenated require("child_"+"process"), and fs["chmod"+"Sync"] string-split property access. State is persisted to.analytics_state to blend with system files. The behavior fires on require() of the package, so any consumer that installs and imports dolyame-ui-navigation executes the attacker-controlled binary on their host.

Malicious versions

1 flagged
35.7.3

Indicators of compromise (SHA-256)

8a4dd05e52eb6422332d1d846b689062b7bc9c38ec3393eed9919e6bed3c56a2

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for dolyame-ui-navigation (version 35.7.3).

  2. If you installed it — respond

    Remove dolyame-ui-navigation from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If dolyame-ui-navigation was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. dolyame-ui-navigation on npm has been identified as a malicious package (version 35.7.3 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015608

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks dolyame-ui-navigation-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

dolyame-ui-navigation (npm) malicious package — MAL-2026-13170 | O3 Security