MAL-2026-13578
Vulnerability from ossf_malicious_packages
Published
2026-08-07 12:32
Modified
2026-08-07 12:32
Summary
Malicious code in dolyame-ui-inputfio (npm)
Details

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

Source: amazon-inspector (42ac05c63a867647d4ec2bf3288918537aeadac4707342a70bfffd42cda60e9c)

On require() of the package, adapter.js and lib/telemetry.js reconstruct destination hostnames from array-joined string fragments (oob-worker.cf1-03-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev, with DNS fallback to *.dl.wel1.ru), fetch an opaque binary payload over HTTPS (base64 chunked, with a DNS-TXT fallback path), write the bytes to /tmp/.cache on Unix or %TEMP%\dotnet_diag_.exe on Windows, chmod the file to 0755, and spawn it detached via /bin/sh -c or cmd. Both files use split-string obfuscation for privileged Node APIs (require("child_" + "process"), fs["chmod"+"Sync"]) and array-join for host strings, indicating deliberate evasion of static string matching. The main export lib/telemetry.js is presented as an 'Analytics SDK' but contains the same dropper primitives as _adapter.js. The behavior fires unconditionally when the package is imported.

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": "_adapter.js",
              "sha256": "15ca6548884302f0e081c20e2afcfb9a46299833c915490468696bc559480826",
              "tlsh": "6da1b65926fa30180793a1d8c52f8816719ff59333c8e984fb4c66944fd653883b2afc"
            },
            {
              "path": "lib/telemetry.js",
              "sha256": "9f0f1e43a051b539c1fbc054cf0c6b851cbe02a139d1efa8fd8e7b59d7cd62e6",
              "tlsh": "8a733f4966fb1021826370685fab40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
            }
          ],
          "package_integrity": [
            {
              "filename": "dolyame-ui-inputfio-35.8.1.tgz",
              "hashes": {
                "sha1": "54fe69c163aea595b911ce225deaf54d3e3bea6f",
                "sha512_sri": "sha512-wNjbDO+pEq9EF/3SURug95ovb8vSvu59RgkXhgGT8h1pAlnSytl5OaPFJvC7HPtWWxc6tc0ppPdb/aj4GmR1qA=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "dolyame-ui-inputfio"
      },
      "versions": [
        "35.8.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-017019",
        "import_time": "2026-08-07T12:51:22.454038356Z",
        "modified_time": "2026-08-07T12:32:00Z",
        "sha256": "42ac05c63a867647d4ec2bf3288918537aeadac4707342a70bfffd42cda60e9c",
        "source": "amazon-inspector",
        "versions": [
          "35.8.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (42ac05c63a867647d4ec2bf3288918537aeadac4707342a70bfffd42cda60e9c)\nOn require() of the package, _adapter.js and lib/telemetry.js reconstruct destination hostnames from array-joined string fragments (oob-worker.cf1-03-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev, with DNS fallback to *.dl.wel1.ru), fetch an opaque binary payload over HTTPS (base64 chunked, with a DNS-TXT fallback path), write the bytes to /tmp/.cache_\u003chex\u003e on Unix or %TEMP%\\dotnet_diag_\u003chex\u003e.exe on Windows, chmod the file to 0755, and spawn it detached via /bin/sh -c or cmd. Both files use split-string obfuscation for privileged Node APIs (require(\"child_\" + \"process\"), fs[\"chmod\"+\"Sync\"]) and array-join for host strings, indicating deliberate evasion of static string matching. The main export lib/telemetry.js is presented as an \u0027Analytics SDK\u0027 but contains the same dropper primitives as _adapter.js. The behavior fires unconditionally when the package is imported.\n",
  "id": "MAL-2026-13578",
  "modified": "2026-08-07T12:32:00Z",
  "published": "2026-08-07T12:32:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/dolyame-ui-inputfio/v/35.8.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in dolyame-ui-inputfio (npm)"
}



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