mal-2026-17798

{
  "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": "ext/tron_trc20_utils/extconf.rb",
              "sha256": "10218e975f54a4f11fe3954e1b584a5f05054003bf5773c3c2b8cceaa74ba763",
              "tlsh": "9751775acf8359e55aa1c0c045798012faa3ab0a50646875f3ee0868ff59b26c0f12fe"
            },
            {
              "path": "metadata.yaml",
              "sha256": "ecf297a9796a5c5b9b228db9e4a1715ea88ae40ba2bef8c5e9226f84e2605453",
              "tlsh": "9a11f380b6c3fc37f205d2e67d642347e3b2ea08be51783099a3829543c41ad67870a1"
            }
          ]
        },
        "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/rubygems/tron-trc20-utils/MAL-2026-17798.json"
      },
      "package": {
        "ecosystem": "RubyGems",
        "name": "tron-trc20-utils",
        "purl": "pkg:gem/tron-trc20-utils"
      },
      "versions": [
        "0.9.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://github.com/ossf/package-analysis",
        "https://openssf.slack.com/channels/package_analysis"
      ],
      "name": "OpenSSF: Package Analysis",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-021365",
        "import_time": "2026-10-11T14:17:59.599525206Z",
        "modified_time": "2026-10-11T13:48:19Z",
        "sha256": "c840b18eadc331896e56720bc9a00f1239807542202bbd4ff9636737f27d0142",
        "source": "amazon-inspector",
        "versions": [
          "0.9.1"
        ]
      },
      {
        "import_time": "2026-10-13T23:14:38.76013948Z",
        "modified_time": "2026-10-11T07:25:29Z",
        "sha256": "c9add94bc20b1a60a35543af695790edcf781639b586b91bc4f4349355e24cb3",
        "source": "ossf-package-analysis",
        "versions": [
          "0.9.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c840b18eadc331896e56720bc9a00f1239807542202bbd4ff9636737f27d0142)\nThe gem's extconf.rb contains a base64-encoded Ruby payload that is decoded and eval'd inside a detached double-forked child during `gem install`. The decoded code opens a TCP connection to 45.138.12.177:8089 and bridges it to /bin/sh, giving the remote operator an interactive shell on the installer's machine. Execution is gated by sandbox/CI-evasion checks: it skips if common CI environment variables are set, if the hostname or username matches sandbox/analyst patterns (uvm/firecracker/sandbox/vagrant/tester/analys/scanner), if the working directory is under /tmp, /opt/rubygems, or /workspace, if /proc/uptime is under 1800 seconds, and it additionally requires developer artifacts such as ~/.ssh, ~/.gitconfig, ~/.gem/credentials, ~/.npmrc, or ~/.bundle to be present. The gem's advertised identity does not match its contents: the gemspec names it `tron-trc20-utils`, the README is for `bitcoin-rpc-lite`, extconf.rb calls `create_makefile('bitcoin_rpc_lite_native')`, and the shipped library is a trivial stub exposing only VERSION, build_id, and healthy? — the install-time reverse shell is the package's only real functionality.\n\n## Source: ossf-package-analysis (c9add94bc20b1a60a35543af695790edcf781639b586b91bc4f4349355e24cb3)\nThe OpenSSF Package Analysis project identified 'tron-trc20-utils' @ 0.9.1 (rubygems) as malicious.\n\nIt is considered malicious because:\n\n- The package executes one or more commands associated with malicious behavior.\n",
  "id": "MAL-2026-17798",
  "modified": "2026-10-13T23:30:06.203981335Z",
  "published": "2026-10-11T07:25:29Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://rubygems.org/gems/tron-trc20-utils/versions/0.9.1"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "Malicious code in tron-trc20-utils (RubyGems)"
}