mal-2026-6573
Vulnerability from ossf_malicious_packages
Published
2026-06-29 03:20
Modified
2026-06-30 16:09
Summary
Malicious code in rebrandly-domains-search-client (npm)
Details

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

Source: amazon-inspector (7d4464320c8530d582d35f85ce95045182d82e1dd63a830644bcb68f05bdf10e)

Package rebrandly-domains-search-client@9999.0.0 is an empty module (index.js exports an empty object) whose package.json preinstall hook runs node callback.js. That script collects installer-side identifiers — os.hostname(), os.userInfo().username, process.cwd(), npm_config_registry, and CI repository env vars including GITHUB_REPOSITORY, CI_PROJECT_PATH, and BUILD_REPOSITORY_NAME — and transmits them via plain-HTTP GET to http://75.119.137.232:31337/depconfuse with the package name, hostname, user, cwd, configured registry, and CI repo as query parameters. The name targets the Rebrandly namespace and the version 9999.0.0 is chosen to outrank any private internal package of the same name during npm resolution. The package has no functional code; its sole on-install effect is the reconnaissance beacon used to identify networks where an internal name resolves, enabling targeted dependency-confusion follow-up.

Source: ghsa-malware (6e75c8eb2d3a4cddc86e386eff1e2a6616e6e7d4a082b5185651b9d8c2fccfbf)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.
  • 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"
          },
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "callback.js",
              "sha256": "7a2e6062e42ebbba325b5b8610c6d60072a6bcdfbc3c1aea2e524e92f55918a3",
              "tlsh": "c3119eb9c68c0c3409c2178479686c5eb8fbe29137c2a4d17f2d71d26bb227046b72bd"
            },
            {
              "path": "package.json",
              "sha256": "2dadc455e324c020299e3c9f4401c6f0c33edf9e97cdec5c2d717ef7f54bcd45",
              "tlsh": "0cd02b30aa12482328d4abd20c967a42016a8e1b09083c492747501d05a967719bf38d"
            }
          ],
          "package_integrity": [
            {
              "filename": "rebrandly-domains-search-client-9999.0.0.tgz",
              "hashes": {
                "sha1": "3c97cbeeb59184e088566a8b144aa222bfc337b8",
                "sha512_sri": "sha512-urD5TzOtNcMNs43vZ1sILg70cBkCqZi+K6tS9t4vXOwVFK1OJyjZoOySCnUbLu9HBxuJvsDGgdl8ycla7K0glA=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "rebrandly-domains-search-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": [
        "9999.0.0"
      ]
    }
  ],
  "aliases": [
    "GHSA-6q7q-73w8-xvcf"
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-007702",
        "import_time": "2026-06-29T05:07:04.157045978Z",
        "modified_time": "2026-06-29T03:20:27Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "SEMVER"
          }
        ],
        "sha256": "7d4464320c8530d582d35f85ce95045182d82e1dd63a830644bcb68f05bdf10e",
        "source": "amazon-inspector",
        "versions": [
          "9999.0.0"
        ]
      },
      {
        "id": "GHSA-6q7q-73w8-xvcf",
        "import_time": "2026-06-30T16:08:01.455193646Z",
        "modified_time": "2026-06-30T15:54:51Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "SEMVER"
          }
        ],
        "sha256": "6e75c8eb2d3a4cddc86e386eff1e2a6616e6e7d4a082b5185651b9d8c2fccfbf",
        "source": "ghsa-malware"
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (7d4464320c8530d582d35f85ce95045182d82e1dd63a830644bcb68f05bdf10e)\nPackage rebrandly-domains-search-client@9999.0.0 is an empty module (index.js exports an empty object) whose package.json preinstall hook runs `node callback.js`. That script collects installer-side identifiers \u2014 os.hostname(), os.userInfo().username, process.cwd(), npm_config_registry, and CI repository env vars including GITHUB_REPOSITORY, CI_PROJECT_PATH, and BUILD_REPOSITORY_NAME \u2014 and transmits them via plain-HTTP GET to http://75.119.137.232:31337/depconfuse with the package name, hostname, user, cwd, configured registry, and CI repo as query parameters. The name targets the Rebrandly namespace and the version 9999.0.0 is chosen to outrank any private internal package of the same name during npm resolution. The package has no functional code; its sole on-install effect is the reconnaissance beacon used to identify networks where an internal name resolves, enabling targeted dependency-confusion follow-up.\n\n## Source: ghsa-malware (6e75c8eb2d3a4cddc86e386eff1e2a6616e6e7d4a082b5185651b9d8c2fccfbf)\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.\n",
  "id": "MAL-2026-6573",
  "modified": "2026-06-30T16:09:53Z",
  "published": "2026-06-29T03:20:27Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/rebrandly-domains-search-client/v/9999.0.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-6q7q-73w8-xvcf"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in rebrandly-domains-search-client (npm)"
}


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Sightings

Author Source Type Date

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.


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