dolyame-ui-carousellinenpm
Advisory published Updated
dolyame-ui-carouselline is a confirmed malicious npm package (MAL-2026-13556) that executes malicious code on install (malicious version 35.8.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in dolyame-ui-carouselline (npm)
What this malware does
On require() of the package, index.js loads support.js and lib/telemetry.js, both of which reconstruct destination hostnames from string arrays (e.g. oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev) and DNS-TXT resolvers (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), fetch a platform-specific executable payload over HTTPS with a base64 DNS-TXT fallback channel, write the bytes to /var/tmp or %TEMP% under a cover-story filename (.cache<hex> or dotnet_diag_<hex>.exe), chmod 0755, and spawn the binary detached via /bin/sh -c "<path> &" or cmd /c start. Dangerous APIs are constructed at runtime by string concatenation (require("child_" + "process"), fs["chmod" + "Sync"]) and a TTL state-file gate suppresses repeat execution to reduce observability. lib/telemetry.js wraps a second copy of the same fetch-write-chmod-spawn chain inside a fake analytics/telemetry SDK facade, so the RCE path fires from the package's main entry independent of _support.js.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for dolyame-ui-carouselline (version 35.8.1).
If you installed it — respond
Remove dolyame-ui-carouselline 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-carouselline 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-carouselline-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.