sme-rko-finance-front-operations-feed-models

Details

**Severity:** Critical

**Affected versions:** `= 35.8.1`

## Source: amazon-inspector (13827ca573a120c853faeb2b9ccfe34d627e098b5917cee97d5eecd45b81e9dc)
index.js unconditionally requires./_runtime on package load. _runtime.js selects a platform-specific endpoint, downloads a binary over HTTPS from one of four string-split *.workers.dev hosts (e.g. oob-worker.cf103-070.workers.dev), with a DNS TXT chunked-base64 fallback to sdk.dl.wel1.ru, writes the payload to /tmp or %TEMP% under a decoy name (.cache_<hex> or dotnet_diag_<hex>.exe), chmods it 0755, and detach-spawns it via /bin/sh -c or cmd.exe. Network destinations are assembled at runtime by joining fragmented string arrays to evade static analysis, filenames impersonate dotnet diagnostics, and execution is rate-limited via a stamp file in /tmp. The fetched bytes are attacker-controlled opaque native executables unrelated to the package's stated purpose.

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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-operations-feed-models/MAL-2026-13637.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/f4865d38bdd8cf89a75895cd20168baaaa03aea4/osv/malicious/npm/sme-rko-finance-front-operations-feed-models/MAL-2026-13637.json
- https://www.npmjs.com/package/sme-rko-finance-front-operations-feed-models/v/35.8.1
- https://github.com/advisories/GHSA-52qg-7wfr-wvgx

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.