MAL-2026-13562
Vulnerability from ossf_malicious_packages
Published
2026-08-07 12:33
Modified
2026-08-07 12:33
Summary
Malicious code in dolyame-ui-contextmenusearchable (npm)
Details

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

Source: amazon-inspector (391ae77ec9b34917f01d44186bbafde2f290fc34d102a16a6106ef2a484314a0)

On require(), _shim.js reconstructs hostnames via string concatenation to hide destinations (oob-worker.cf.workers.dev, with a DNS TXT-record base64 fallback under .dl.wel1.ru), downloads a platform-specific binary, writes it to /var/tmp/.cache_XXXX on Unix or %TEMP%\dotnet_diag_XXXX.exe on Windows (masquerading as a.NET diagnostic file), chmods it 755, and spawns it detached with stdio ignored via cp.spawn("/bin/sh", ["-c", fp+" &"]) or the cmd equivalent. A TTL flag file suppresses re-execution. index.js re-exports lib/telemetry.js, which duplicates the same fetch/base64-decode/chmod/spawn dropper chain, providing a second import-time execution path. Dangerous API names ("child_process", "chmodSync") are reassembled at runtime via string concatenation to defeat static analysis. The package advertises itself as a data-transformation/analytics utility; the fetched binary is opaque and the delivery hosts are anonymous mutable Cloudflare Workers unrelated to any documented publisher.

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": "_shim.js",
              "sha256": "11e650eaacccbeec20298672d12f9d48d80348026b5f3420af52cc28ccbe4cd2",
              "tlsh": "f2a1b65916fa70180b93f1d4c41f4816716afa833685e5c8fb4c66948fd723983b3aec"
            },
            {
              "path": "lib/telemetry.js",
              "sha256": "9bc664d7d1cf514a9d0243f071042c16e3877117037e2fa5bc78c848f4fb31e2",
              "tlsh": "40733f4966fb10214263b0685ebb40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
            }
          ],
          "package_integrity": [
            {
              "filename": "dolyame-ui-contextmenusearchable-35.8.1.tgz",
              "hashes": {
                "sha1": "4c411b739f59b45e641233058ee1d4f2908e56ad",
                "sha512_sri": "sha512-ezYA4XVORSh5oMizgU3IBU6B/lUnp8PVbNoXDS/Q+yAM6GkAtOYmGOYOBnJs0njNxe6FxWa68HFbDhOFxbXMpw=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "dolyame-ui-contextmenusearchable"
      },
      "versions": [
        "35.8.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-017030",
        "import_time": "2026-08-07T12:51:22.899221838Z",
        "modified_time": "2026-08-07T12:33:41Z",
        "sha256": "391ae77ec9b34917f01d44186bbafde2f290fc34d102a16a6106ef2a484314a0",
        "source": "amazon-inspector",
        "versions": [
          "35.8.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (391ae77ec9b34917f01d44186bbafde2f290fc34d102a16a6106ef2a484314a0)\nOn require(), _shim.js reconstructs hostnames via string concatenation to hide destinations (oob-worker.cf*.workers.dev, with a DNS TXT-record base64 fallback under *.dl.wel1.ru), downloads a platform-specific binary, writes it to /var/tmp/.cache_XXXX on Unix or %TEMP%\\dotnet_diag_XXXX.exe on Windows (masquerading as a.NET diagnostic file), chmods it 755, and spawns it detached with stdio ignored via cp.spawn(\"/bin/sh\", [\"-c\", fp+\" \u0026\"]) or the cmd equivalent. A TTL flag file suppresses re-execution. index.js re-exports lib/telemetry.js, which duplicates the same fetch/base64-decode/chmod/spawn dropper chain, providing a second import-time execution path. Dangerous API names (\"child_process\", \"chmodSync\") are reassembled at runtime via string concatenation to defeat static analysis. The package advertises itself as a data-transformation/analytics utility; the fetched binary is opaque and the delivery hosts are anonymous mutable Cloudflare Workers unrelated to any documented publisher.\n",
  "id": "MAL-2026-13562",
  "modified": "2026-08-07T12:33:41Z",
  "published": "2026-08-07T12:33:41Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/dolyame-ui-contextmenusearchable/v/35.8.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in dolyame-ui-contextmenusearchable (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…