registry / dolyame-ui-carousel / 35.3.3

dolyame-ui-carousel@35.3.3

interface elements

AI Security Review

scanned 10d ago · by lpm-firewall-ai

Importing the package activates a hidden downloader. It retrieves a platform binary, writes it to a temporary path, and launches it detached.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

Runtime require/import of index.js

Impact

Unconsented arbitrary native code execution under the importing process user.

Mechanism

remote binary download, temp-file drop, and detached execution

Attack narrative

The public entrypoint silently imports _shim.js. On import it selects an OS/architecture payload path, downloads binary content from obfuscated worker domains or reconstructs it from DNS TXT records, writes it under a disguised temporary filename, makes it executable on Unix, and launches it through a detached shell or cmd.exe process.

Rationale

This is a concrete import-time remote payload execution chain with no legitimate relationship to a carousel package. The unused telemetry module contains a substantially similar download-and-launch capability, reinforcing intent.

Evidence

package.jsonindex.js_shim.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe

Network endpoints7

oob-worker.cf102-baf.workers.dev/pkg/package

On require of the package's main entry, _shim.js selects a platform-specific payload path and downloads a native binary from one of three Cloudflare Workers hosts whose names are assembled by string-array joins to evade static matching: oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, and oob-worker.cf101-adf.workers.dev. A DNS TXT chunked-base64 covert-channel fallback is implemented against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to a hidden/disguised path in /tmp or %TEMP% (`.cache_<hex>` on Unix, `dotnet_diag_<hex>.exe` on Windows), chmod 0755, and spawned detached via `/bin/sh -c "<path> &"` or `cmd.exe /c start /b`. A stamp file gates re-execution. Cover-story identifiers such as `_NODES`, `analytics_state`, and `DISABLE_TELEMETRY` are used alongside the drop-and-exec logic. The package's declared purpose is a UI carousel component, which has no legitimate need to fetch and execute a native binary from anonymous workers.dev endpoints at import time.

dolyame-ui-carousel@35.3.3

AI Security Review

OSV Corroboration

Decision evidence

Source & flagged code

Source & flagged code

Findings

Source & flagged code