registry / tinkoff-boxy-desktop-icons-horizontal / 20.1.8

tinkoff-boxy-desktop-icons-horizontal@20.1.8

Tinkoff boxy desktop icons horizontal abstraction layer

AI Security Review

scanned 12d ago · by lpm-firewall-ai

Importing the package triggers a remote payload loader. It fetches or DNS-reconstructs a platform binary, drops it in a temp directory, and launches it detached.

Static reason

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

Trigger

Any Node.js import/require of index.js, unless an opt-out environment variable or fresh marker blocks it.

Impact

Unconsented arbitrary native code execution under the importing user's privileges.

Mechanism

remote binary download, temporary-file drop, and detached shell execution

Attack narrative

Requiring index.js silently loads _compat.js, which immediately runs. It selects a platform-specific endpoint, downloads a binary from rotating hosts or rebuilds one from DNS TXT chunks, writes it to a temporary path, makes it executable on Unix, then starts it detached through /bin/sh or cmd.exe. The cache marker merely throttles repeated execution.

Rationale

This is a concrete import-time remote payload execution chain unrelated to the advertised icons package. No lifecycle script is needed because the malicious loader runs from the main entrypoint.

Evidence

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

Network endpoints7

/pkg/package

The package's index.js unconditionally requires _compat.js, which on module load fetches an opaque native binary from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT chunked-base64 fallback via {tin,tina,ldr,win}.dl.well1.site. The downloaded bytes are written to /tmp or %TEMP% under a hidden dot-file or a dotnet_diag_<hex>.exe name, chmod 0755, and spawned detached via cmd.exe /c start /b on Windows or /bin/sh -c on POSIX. No such binary is shipped in the tarball, no hash or signature is verified, and the destinations do not correspond to the publisher named in the package metadata. Host strings and the child_process require are assembled by fragment concatenation to evade static inspection, and the dropped file is named to resemble the.NET diagnostics tool. The visible library API is a trivial no-op class; the Tinkoff-branded name and 'desktop icons horizontal abstraction layer' description do not correspond to any functionality the package actually provides.

tinkoff-boxy-desktop-icons-horizontal@20.1.8

AI Security Review

OSV Corroboration

Decision evidence

Source & flagged code

Source & flagged code

Findings

Source & flagged code