MAL-2026-17865

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Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/passwordcrackv2/MAL-2026-17865.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-17865

Aliases

GHSA-pqwv-7rr5-v32f

Published

2026-10-09T22:04:05Z

Modified

2026-11-03T22:30:04Z

Summary

Malicious code in passwordcrackv2 (npm)

Details

passwordcrackv2 poses as a dependency-free Discord MFA library but pulls node-net-pool from the attacker's GitHub repo lunexindonesia/node-net-pool, and on load lib/cache.js runs try{module['require']('node-net-pool')}catch(_){} to execute it. On Windows, that index.js downloads a script from a limbomail.com attachment URL, saves it as a hidden winsvc.js under %APPDATA%, %LOCALAPPDATA% or %TEMP%, runs it via a hidden WinSvcHost.vbs, persists through HKCU Run/RunOnce, UserInitMprLogonScript and a Startup shortcut, and re-checks for updates every two hours. Amazon Inspector reported the same loader stub in discord-mfa-solver (MAL-2026-16100). The npm account kingsize published passwordcrackv2 and passwordcracker with identical code on 2026-10-09 and 2026-10-10.

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

Source: amazon-inspector (5af882b3d847b17692c91b05e8efb4bf9947a0ec3b1ea5e04bb8681fc73f135c)

package.json declares its only dependency, 'node-net-pool', as an HTTPS tarball of the 'main' branch of github.com/lunexindonesia/node-net-pool, with no version pin and no integrity hash. npm install fetches whatever bytes that URL returns and runs any lifecycle scripts inside, so whoever controls that repository controls code delivered to every installer. The publisher of this package (mfasolver) does not match the dependency owner (lunexindonesia), so an unrelated third party controls the fetched content. lib/cache.js further wraps the dependency load as try{module'require'}catch(_){}, so the remote dependency is pulled in on normal library use via initMFA/cache.get() and any failure is silently swallowed. The package itself is advertised as Discord MFA/token-abuse tooling (PATCH /api/v9/guilds/0/vanity-url, POST /api/v9/mfa/finish, Cloudflare-bypass host rotation, TLS verification disabled via rejectUnauthorized:false); that capability targets operator-chosen Discord accounts rather than the installer directly, but the mutable-branch dependency is a direct install-time and import-time code-execution path against the installer regardless of how the stated API is used.

Source: ghsa-malware (5cd012a505c3647326e34a800cbc89508cd105c6a1444d7448194a0bf5044883)

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.

Database specific

{
    "iocs": {
        "files": [
            {
                "digests": {
                    "sha256": "40ad444731103c356ac7643b1a58e6093fcce1ea2f43977fb07f34833d37178a"
                },
                "note": "Loader stub: silently requires node-net-pool when the package is loaded. Identical in every non-placeholder version.",
                "paths": [
                    "lib/cache.js"
                ],
                "source": "PACKAGE_ARCHIVE"
            },
            {
                "note": "Stage two from github.com/lunexindonesia/node-net-pool; Windows-only downloader and persistence installer.",
                "paths": [
                    "node_modules/node-net-pool/index.js"
                ],
                "source": "DROPPED"
            },
            {
                "note": "Stage three downloaded from limbomail.com (first writable directory is used), with winsvc.js.v/.lk/.pid side files, WinSvcHost.vbs launcher and self-deleting WinSvcHostCfg.vbs.",
                "paths": [
                    "%APPDATA%\\Microsoft\\Windows\\WinSxS\\Backup\\winsvc.js",
                    "%APPDATA%\\Microsoft\\Windows\\Themes\\winsvc.js",
                    "%LOCALAPPDATA%\\Microsoft\\Windows\\Caches\\winsvc.js",
                    "%TEMP%\\MicrosoftEdge\\winsvc.js"
                ],
                "source": "DROPPED"
            },
            {
                "note": "Startup shortcut; also HKCU Run\\WinSvcHost, RunOnce\\WinSvcHostUpd and HKCU\\Environment\\UserInitMprLogonScript, each running wscript.exe //B //NoLogo WinSvcHost.vbs.",
                "paths": [
                    "%APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\WinSvcHost.lnk"
                ],
                "source": "DROPPED"
            },
            {
                "digests": {
                    "sha256": "3715dd9f2baaced346c3ddee89235015034d8561f41c66ec2d723909da337618"
                },
                "note": "Declares node-net-pool as a dependency fetched from an attacker-controlled GitHub tarball.",
                "paths": [
                    "package.json"
                ],
                "source": "PACKAGE_ARCHIVE"
            }
        ],
        "urls": [
            "https://limbomail.com/api/attachment/l4TIRPOsaUxR._603-vhKDRdgKl3RalN_TVUZYGPsJy2Y/all.js",
            "https://github.com/lunexindonesia/node-net-pool/archive/refs/heads/main.tar.gz",
            "https://github.com/lunexindonesia/node-net-pool",
            "https://github.com/trktgq0wbre1/node-net-pool/archive/refs/heads/main.tar.gz",
            "https://github.com/trktgq0wbre1/node-net-pool"
        ]
    },
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-021871",
            "import_time": "2026-10-29T13:37:14.181144551Z",
            "modified_time": "2026-10-29T13:18:56Z",
            "sha256": "5af882b3d847b17692c91b05e8efb4bf9947a0ec3b1ea5e04bb8681fc73f135c",
            "source": "amazon-inspector",
            "versions": [
                "1.1.1"
            ]
        },
        {
            "id": "IN-MAL-2026-021854",
            "import_time": "2026-10-29T13:37:13.411576205Z",
            "modified_time": "2026-10-29T13:16:42Z",
            "sha256": "86177fb5df47c6002b7d9313a13482d3f1412edc37415075e5f79e65a5bf8b3d",
            "source": "amazon-inspector",
            "versions": [
                "1.1.0"
            ]
        },
        {
            "id": "GHSA-pqwv-7rr5-v32f",
            "import_time": "2026-11-03T22:17:46.481355339Z",
            "modified_time": "2026-11-03T22:10:37Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "5cd012a505c3647326e34a800cbc89508cd105c6a1444d7448194a0bf5044883",
            "source": "ghsa-malware"
        }
    ]
}

References

Credits

- Amazon Inspector - FINDER
- - inspector-research@amazon.com
- InvisiRisk, Inc. - FINDER
- - https://www.invisirisk.com
  - mailto:research@invisirisk.com

Affected packages

npm / passwordcrackv2

Package

Name: passwordcrackv2; View open source insights on deps.dev
Purl: pkg:npm/passwordcrackv2

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.1.0

1.1.1

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"
    },
    {
        "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": "package.json",
            "sha256": "3715dd9f2baaced346c3ddee89235015034d8561f41c66ec2d723909da337618",
            "tlsh": "a621b125c9e82c5717c569e0ec194152b6720c0308097c1473c686ad4f9e0bb22fe19e"
        },
        {
            "path": "lib/cache.js",
            "sha256": "40ad444731103c356ac7643b1a58e6093fcce1ea2f43977fb07f34833d37178a",
            "tlsh": "1f416c5f39c1f0261bf7a57da91f874ab76c990c200cd5a0796943ecba3213c47b7859"
        },
        {
            "path": "index.js",
            "sha256": "0e3494d24c490978c9e5e3d8b13e45fd261b6fac692f852045ff8b4241b3b63f",
            "tlsh": "7a12621121f7203a0367d0ff9bd7d01567345903355ae9b8b78c9684afc361a85b3aee"
        }
    ],
    "package_integrity": [
        {
            "filename": "passwordcrackv2-1.1.1.tgz",
            "hashes": {
                "sha1": "c1e603e34049ddde5a6041d041c2cbed0d893b5f",
                "sha512_sri": "sha512-NYKaF3ivlhwjy8IRXnT29Kxq5l3mXgzkMWs3pCj6YOhJcDL8W8DnaXj8wh8D5K0xFKwoX2EUTjDSRXkrq4w5GA=="
            }
        }
    ]
}

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/passwordcrackv2/MAL-2026-17865.json"