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Malicious package

dolyame-ui-gridnpm

dolyame-ui-grid is a confirmed malicious npm package (MAL-2026-13157) that executes malicious code on install (malicious version 35.7.4). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in dolyame-ui-grid (npm)

MAL-2026-13157
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall dolyame-ui-grid

What this malware does

On require('dolyame-ui-grid'), index.js loads polyfill.js which selects a platform-specific asset, downloads a binary from one of four hardcoded Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev) with DNS-TXT chunked fallbacks under *.dl.wel1.ru (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), writes it to /tmp or the Windows Temp directory under a disguised name (.cache<rand> or dotnet_diag_<rand>.exe), chmods it 0755, and spawns it detached via spawn('/bin/sh') or spawn('cmd'). Destination hostnames are assembled at runtime by.join('') on split string fragments, and a.analytics_state mtime file gates re-execution cadence, with comments framing the code as 'telemetry'/'analytics'. A parallel dropper implementation in lib/telemetry.js (base64-decoded chunks, chmodSync 0755, cp.spawn('/bin/sh',['-c', filePath+' &'])) is present but not reachable from the main require graph. The download hosts are unrelated to the package publisher, the fetched bytes are opaque and unverified, and execution happens unconditionally on module load.

Malicious versions

1 flagged
35.7.4

Indicators of compromise (SHA-256)

f21d1f60c7f97ffdc8e698c9804d9d9116f286be7a026a9c90f6e4a1858dea18

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for dolyame-ui-grid (version 35.7.4). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging dolyame-ui-grid across your stack and pipelines.

  2. If you installed it — respond

    Remove dolyame-ui-grid 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-grid was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks dolyame-ui-grid before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. dolyame-ui-grid on npm has been identified as a malicious package (version 35.7.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015620

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks dolyame-ui-grid-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-grid (npm) malicious package — MAL-2026-13157 | O3 Security