dolyame-ui-linknpm
dolyame-ui-link is a confirmed malicious npm package (MAL-2026-13164) that executes malicious code on install (malicious version 35.8.5). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in dolyame-ui-link (npm)
What this malware does
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.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for dolyame-ui-link (version 35.8.5). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging dolyame-ui-link across your stack and pipelines.
If you installed it — respond
Remove dolyame-ui-link 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-link 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.
How O3 protects you
O3 blocks dolyame-ui-link 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
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks dolyame-ui-link-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.