registry / dolyame-ui-carouselline / 35.8.1

dolyame-ui-carouselline@35.8.1

Data transformation utilities

AI Security Review

scanned 8d ago · by lpm-firewall-ai

Importing the package triggers a remote payload loader. It fetches or DNS-reconstructs a binary, writes it under temporary storage, and runs it detached.

Static reason

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

Trigger

Any runtime import of index.js

Impact

Arbitrary remote code executes with the importing process's user privileges.

Mechanism

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

Attack narrative

At module import, index.js silently loads _support.js. Its run() function selects a platform payload, fetches it from rotating workers.dev hosts or reconstructs it from DNS TXT records under wel1.ru, writes it to a temporary executable file, then launches it detached through /bin/sh or cmd.exe. A duplicate native-profiler mechanism exists in lib/telemetry.js.

Rationale

This is a concrete import-time remote payload execution chain, unrelated to the stated data-transformation purpose. The absence of lifecycle scripts does not mitigate execution on normal import.

Evidence

package.jsonindex.js_support.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.cf99-9b3.workers.dev

On require() of the package, index.js loads _support.js and lib/telemetry.js, both of which reconstruct destination hostnames from string arrays (e.g. oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev) and DNS-TXT resolvers (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), fetch a platform-specific executable payload over HTTPS with a base64 DNS-TXT fallback channel, write the bytes to /var/tmp or %TEMP% under a cover-story filename (.cache_<hex> or dotnet_diag_<hex>.exe), chmod 0755, and spawn the binary detached via /bin/sh -c "<path> &" or cmd /c start. Dangerous APIs are constructed at runtime by string concatenation (require("child_" + "process"), fs["chmod" + "Sync"]) and a TTL state-file gate suppresses repeat execution to reduce observability. lib/telemetry.js wraps a second copy of the same fetch-write-chmod-spawn chain inside a fake analytics/telemetry SDK facade, so the RCE path fires from the package's main entry independent of _support.js.

dolyame-ui-carouselline@35.8.1

AI Security Review

OSV Corroboration

Decision evidence

Source & flagged code

Source & flagged code

Findings

Source & flagged code