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Malicious code in internallib_v23 (npm)

Type: advisorySource: OSV1 source record

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (bf294381eb4f87a0dcccbd00977ac38ab25a8108639c8cc08543c7d0e09b5f36) index.js line 5 exports a function that invokes /bin/bash to curl https://reverse-shell.sh/10.0.19.80:4443 and pipe the response to a shell, delivering an interactive reverse shell to the hardcoded endpoint 10.0.19.80:4443 on the host where the exported function is called. The destination is a hardcoded private-range IP, there is no authentication, no documentation of the behavior, and the fetched content is executed directly. The package's only exported functionality is this backdoor dropper.

Announced Group revision 1
Original source ↗

MAL-2026-17632

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:MAL-2026-17632

internallib_v23

Source reference: /affected/0/package/name

Affected versions
1.0.1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "package": {
      "name": "internallib_v23",
      "purl": "pkg:npm/internallib_v23",
      "ecosystem": "npm"
    },
    "versions": [
      "1.0.1"
    ],
    "database_specific": {
      "cwes": [
        {
          "name": "Embedded Malicious Code",
          "cweId": "CWE-506",
          "description": "The product contains code that appears to be malicious in nature."
        }
      ],
      "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/internallib_v23/MAL-2026-17632.json",
      "indicators": {
        "evidence_files": [
          {
            "path": "index.js",
            "tlsh": "57c022b7969a022af74961e09e15f861a8478c602a2800b0a014405110c284d32170ff",
            "sha256": "114c8a7de3dfb0f039f9f2c1f16c6eaea1a266d75a598a1bfca048e491650e80"
          }
        ],
        "package_integrity": [
          {
            "hashes": {
              "sha1": "4c8f6724f47c513fd172699140bf409c8e42ffe7",
              "sha512_sri": "sha512-JONfS11/r/G6mT4hmc9HDD9bt0OYK/1w0bpodgpkP3UXTw3KinTAog5n+l3AAW3E6fwP8uiHEzjL+OlFyCBDpA=="
            },
            "filename": "internallib_v23-1.0.1.tgz"
          }
        ]
      }
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#86362 · Revision 1
Added to Heist Feed
Publisher date
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