dolyame-ui-gridnpm
Advisory published Updated
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)
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
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for dolyame-ui-grid (version 35.7.4).
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.
Did it already run?
If dolyame-ui-grid 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
Campaign
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.