sme-rko-finance-front-payments-feed-display-list

Details

**Severity:** Critical

**Affected versions:** `= 35.8.1`

## Source: amazon-inspector (eedf1850bd0f58b8adef8a6b6c3ac13adf7848819306e5a7b9518cbb174911a3)
On require of the package's main module, _compat.js unconditionally downloads a platform-specific executable and runs it. Destination hosts are assembled at runtime from split string arrays (e.g. ['oob-','worker.cf99-9b3.wo','rkers.de','v'].join('')) to evade static analysis, resolving to anonymous *.workers.dev subdomains that do not match any package publisher. The fetched bytes are written to a temp path under decoy names (dotnet_diag_*.exe,.cache_*), chmodded 0755, and spawned detached via child_process.spawn ('/bin/sh' or 'cmd'), with a platform map covering linux/darwin/win32. When HTTP fetch fails, a fallback channel resolves DNS TXT records at c.<domain> under *.dl.wel1.ru for a chunk count, reassembles base64-encoded payload chunks from 0.<domain>, 1.<domain>,..., and executes the resulting binary. No hash or signature verification is performed. The package name presents as a benign finance-frontend UI component, which is inconsistent with the download-and-execute behavior.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/f4865d38bdd8cf89a75895cd20168baaaa03aea4/osv/malicious/npm/sme-rko-finance-front-payments-feed-display-list/MAL-2026-13662.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/f4865d38bdd8cf89a75895cd20168baaaa03aea4/osv/malicious/npm/sme-rko-finance-front-payments-feed-display-list/MAL-2026-13662.json
- https://www.npmjs.com/package/sme-rko-finance-front-payments-feed-display-list/v/35.8.1
- https://github.com/advisories/GHSA-6cqr-56m6-wch6

Compromised versions (1)

• = 35.8.1

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.