{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "sjs-lint-build1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "SEMVER"
        }
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "actran@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://safedep.io"
      ],
      "name": "SafeDep",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "import_time": "2026-04-10T17:21:49.017936724Z",
        "modified_time": "2026-04-10T17:02:58Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "SEMVER"
          }
        ],
        "sha256": "cba6ed57b1eb82592650453ea703d44d9294be1c1c3316f4562ff4f197e6c0f6",
        "source": "amazon-inspector"
      }
    ]
  },
  "details": "sjs-biginteger typosquats big.js on npm. Published April 7, 2026 by throwaway account vanes.s.p.orit.a, the package ships legitimate big.js source and hides its payload in a dependency: sjs-lint-build1. On install, the dependency\u2019s postinstall hook fetches the attacker\u2019s SSH public key from a C2 server, appends it to ~/.ssh/authorized_keys, opens firewall port 22, then collects SSH keys, environment variables, config files (.env, Solana id.json, config.toml), and system fingerprints. It exfiltrates the collected data to two Vercel-hosted C2 domains disguised as Cloudflare services.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (cba6ed57b1eb82592650453ea703d44d9294be1c1c3316f4562ff4f197e6c0f6)\nThe package sjs-lint-build1 was found to contain malicious code.\n",
  "id": "MAL-2026-2528",
  "modified": "2026-04-10T17:23:36Z",
  "published": "2026-04-09T14:04:30Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://safedep.io/malicious-sjs-biginteger-npm-ssh-theft/"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in sjs-lint-build1 (npm)"
}