mal-2026-13646
Vulnerability from ossf_malicious_packages
Published
2026-08-08 00:45
Modified
2026-08-08 00:45
Summary
Malicious code in sme-rko-finance-front-operations-providers (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (85709f3e95d677177f1e55976d46cf4e16582e9cf3c1b310a7e67dd09885a743)

On require() of the package, index.js loads bridge.js which assembles Cloudflare Workers subdomain hostnames from split string fragments (oob-worker.cf103-070.workers.dev, cf100-416, cf101-adf.workers.dev) and downloads a platform-specific binary via https.get. The fetched bytes are written to a decoy path under /tmp or %TEMP% (.cache/dotnet_diag_.exe), chmod 0755 on Unix, and executed detached via spawn("/bin/sh",["-c", fp+" &"]) or spawn("cmd",...) on Windows. A DNS-TXT fallback channel resolves shards from wel1.ru (sdk.dl.wel1.ru assembled from fragments) — a count record c. followed by numeric shards . — and reassembles base64-decoded payload bytes when the HTTPS delivery path is blocked. Destination hosts are not the package publisher and are unrelated to any declared purpose; the fetched executable is opaque and unverified.

CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.
Credits

{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "_bridge.js",
              "sha256": "2cde7802d910902a25337397e7f6ee2c252edb2b72e0f888f37cbfc4a9c45351",
              "tlsh": "01a1a7592afb30180793a1d4851f5815719bf59333c9e598fb4ca6a44fa613483f3aec"
            }
          ],
          "package_integrity": [
            {
              "filename": "sme-rko-finance-front-operations-providers-35.8.1.tgz",
              "hashes": {
                "sha1": "e3d0d6eb1e456d56bde5199d3bfb2ff9335e8a01",
                "sha512_sri": "sha512-wFxv/InIoy/lrGrquVzgFNLqK+ZVmlg5qe0P1ehbaIxb+L7Snvkv4z2RdIYuRNs+z4nxCVFTYHiIBwdSw9Ws6Q=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "sme-rko-finance-front-operations-providers"
      },
      "versions": [
        "35.8.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-017153",
        "import_time": "2026-08-08T00:53:07.298999072Z",
        "modified_time": "2026-08-08T00:45:32Z",
        "sha256": "85709f3e95d677177f1e55976d46cf4e16582e9cf3c1b310a7e67dd09885a743",
        "source": "amazon-inspector",
        "versions": [
          "35.8.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (85709f3e95d677177f1e55976d46cf4e16582e9cf3c1b310a7e67dd09885a743)\nOn require() of the package, index.js loads _bridge.js which assembles Cloudflare Workers subdomain hostnames from split string fragments (oob-worker.cf103-070.workers.dev, cf100-416, cf101-adf.workers.dev) and downloads a platform-specific binary via https.get. The fetched bytes are written to a decoy path under /tmp or %TEMP% (.cache_\u003chex\u003e/dotnet_diag_\u003chex\u003e.exe), chmod 0755 on Unix, and executed detached via spawn(\"/bin/sh\",[\"-c\", fp+\" \u0026\"]) or spawn(\"cmd\",...) on Windows. A DNS-TXT fallback channel resolves shards from wel1.ru (sdk.dl.wel1.ru assembled from fragments) \u2014 a count record c.\u003cdomain\u003e followed by numeric shards \u003ci\u003e.\u003cdomain\u003e \u2014 and reassembles base64-decoded payload bytes when the HTTPS delivery path is blocked. Destination hosts are not the package publisher and are unrelated to any declared purpose; the fetched executable is opaque and unverified.\n",
  "id": "MAL-2026-13646",
  "modified": "2026-08-08T00:45:32Z",
  "published": "2026-08-08T00:45:32Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/sme-rko-finance-front-operations-providers/v/35.8.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in sme-rko-finance-front-operations-providers (npm)"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…