dolyame-boxy-desktop-bnpl-button-setnpm
Advisory published Updated
dolyame-boxy-desktop-bnpl-button-set is a confirmed malicious npm package (MAL-2026-13300) that executes malicious code on install (malicious version 35.2.4). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in dolyame-boxy-desktop-bnpl-button-set (npm)
What this malware does
Requiring the package loads vendor.js, which reconstructs remote hosts from array-join fragments (resolving to Cloudflare Workers hosts such as oob-worker.cf*.workers.dev and a *.dl.wel1.ru fallback discovered via DNS-TXT), downloads a platform-specific binary over HTTPS with no hash or signature verification, writes it to /tmp or %TEMP% under a disguised name (.cache<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmods it 0755, and spawns it detached via /bin/sh -c or cmd /c start. A TTL stamp is used to avoid re-fetching on subsequent loads. The advertised purpose (a BNPL button UI set) has no legitimate need for downloading and executing an external binary, and the destination hosts are obfuscated to defeat static string scanning.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for dolyame-boxy-desktop-bnpl-button-set (version 35.2.4).
If you installed it — respond
Remove dolyame-boxy-desktop-bnpl-button-set 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-boxy-desktop-bnpl-button-set 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-boxy-desktop-bnpl-button-set-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.