dolyame-ui-inputcolornpm
Advisory published Updated
dolyame-ui-inputcolor is a confirmed malicious npm package (MAL-2026-13507) 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-inputcolor (npm)
What this malware does
index.js unconditionally requires./loader on load. loader.js assembles attacker hostnames at runtime via array.join to hide them from static scanners (e.g., ["oob-w","orker",".cf","101-adf.workers.","de","v"].join("")), selects an OS-specific endpoint, and fetches a binary payload over HTTPS from one of four oob-worker.cf10[0-3]-*.workers.dev hosts. On HTTPS failure, it falls back to a DNS-TXT covert channel: it queries chunked TXT records under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru, base64-concatenates the chunks, and reconstitutes the payload buffer. The bytes are written to /tmp or %TEMP% under a disguised name (.cache<hex> on Unix, dotnet_diag<hex>.exe on Windows), chmodded to 0755, and spawned detached via /bin/sh -c or cmd. Module names, API names, and hostnames are reconstructed via string concatenation and dynamic property access (require("child_" + "process"), fs["chmod" + "Sync"], os["host" + "name"]) to defeat plain-text matching. The dropper fires on every require() of this package, granting the operator of those hosts arbitrary code execution on any machine that installs or imports it.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for dolyame-ui-inputcolor (version 35.8.1).
If you installed it — respond
Remove dolyame-ui-inputcolor 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-inputcolor 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-inputcolor-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.