registry / dolyame-boxy-mobile-bnpl-picture-gallery / 35.2.9

dolyame-boxy-mobile-bnpl-picture-gallery@35.2.9

device integration

AI Security Review

scanned 10d ago · by lpm-firewall-ai

Importing the package automatically executes a remote binary bootstrapper. It fetches a platform payload, 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

require/import of the package entrypoint index.js

Impact

Arbitrary attacker-controlled code executes with the importing process's privileges.

Mechanism

obfuscated remote binary download, drop, chmod, and detached execution

Attack narrative

A normal import reaches index.js, which silently requires _ext.js. Its bootstrap selects a platform payload, retrieves it over HTTPS from rotating worker hosts or via DNS TXT records, saves the bytes under a randomized temp filename, makes Unix payloads executable, and launches them through a detached shell or cmd.exe. No signature, hash, or provenance validation protects the downloaded executable.

Rationale

Concrete import-time remote payload execution is present in _ext.js and is reachable from the declared main entrypoint. This is malicious behavior, not package-aligned telemetry.

Evidence

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

Network endpoints8

On require of this package, index.js unconditionally loads _ext.js, which reconstructs C2 hostnames at runtime by joining split string fragments (assembling *.workers.dev endpoints with a DNS TXT-record fallback resolving under *.dl.wel1.ru). _ext.js selects a platform-specific URL, downloads an opaque native binary via https.get, writes it to a hidden temp file named.cache_<hex> on Unix or dotnet_diag_<hex>.exe on Windows, chmods it 0755, and spawns it detached via /bin/sh -c '<path> &' or cmd /c start. Function references such as child_process are string-concatenated (require("child_"+"process")) and file names masquerade as.NET diagnostic or cache artifacts; comments frame the behavior as opt-out telemetry. A secondary dropper with matching primitives (base64 chunk assembly, fs.chmodSync|0o755, cp.spawn('/bin/sh', ['-c', path+' &'])) is shipped as lib/telemetry.js (~81KB), not referenced from index.js in this version but bundled in the tarball. The package name impersonates a payments/BNPL gallery SDK; the actual runtime behavior is a drop-and-execute of author-controlled native code on any host that installs or imports this version.

dolyame-boxy-mobile-bnpl-picture-gallery@35.2.9

AI Security Review

OSV Corroboration

Decision evidence

Source & flagged code

Source & flagged code

Findings

Source & flagged code