dolyame-ui-contextmenusearchablenpm
Advisory published Updated
dolyame-ui-contextmenusearchable is a confirmed malicious npm package (MAL-2026-13562) 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-contextmenusearchable (npm)
What this malware does
On require(), _shim.js reconstructs hostnames via string concatenation to hide destinations (oob-worker.cf*.workers.dev, with a DNS TXT-record base64 fallback under *.dl.wel1.ru), downloads a platform-specific binary, writes it to /var/tmp/.cache_XXXX on Unix or %TEMP%\dotnet_diag_XXXX.exe on Windows (masquerading as a.NET diagnostic file), chmods it 755, and spawns it detached with stdio ignored via cp.spawn("/bin/sh", ["-c", fp+" &"]) or the cmd equivalent. A TTL flag file suppresses re-execution. index.js re-exports lib/telemetry.js, which duplicates the same fetch/base64-decode/chmod/spawn dropper chain, providing a second import-time execution path. Dangerous API names ("child_process", "chmodSync") are reassembled at runtime via string concatenation to defeat static analysis. The package advertises itself as a data-transformation/analytics utility; the fetched binary is opaque and the delivery hosts are anonymous mutable Cloudflare Workers unrelated to any documented publisher.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for dolyame-ui-contextmenusearchable (version 35.8.1).
If you installed it — respond
Remove dolyame-ui-contextmenusearchable 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-contextmenusearchable 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-contextmenusearchable-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.