MAL-2025-4273

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/websign/MAL-2025-4273.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2025-4273
Published
2025-04-27T08:06:41Z
Modified
2026-03-19T12:58:22.651006Z
Summary
Malicious code in websign (PyPI)
Details

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

Source: kam193 (25ea98e45fc0e99bfc731d77e2205bd14c901fc33ba6b8639b441b97739db0e2)

Package contains just a function to send out data. It (or a package sharing the same IoCs) is used in a malicious GitHub project to exfiltrate crypto currency private keys, e.g. https://github.com/taikoyaki/MegaEth-Auto-Bot/blob/772b4591daaa0b200d1bd1fd3be3d48b8433f084/cap/cap.py#L49

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2025-04-alchemyrpcs

Reasons (based on the campaign):

  • crypto-related

  • The malicious code is intentionally included in a dependency of the package

  • exfiltration-crypto

Database specific 
{
    "iocs": {
        "domains": [
            "web3check-api.netlify.app",
            "dapper-flan-46eb5a.netlify.app"
        ]
    },
    "malicious-packages-origins": [
        {
            "versions": [
                "0.1.0"
            ],
            "id": "RLMA-2025-02631",
            "modified_time": "2025-05-22T12:34:01Z",
            "import_time": "2025-05-22T14:06:40.551739356Z",
            "sha256": "4a59dc6694a22280d53c39ce67f7230e3ebda36804168fcb82211273e324d878",
            "source": "reversing-labs"
        },
        {
            "id": "pypi/2025-04-alchemyrpcs/websign",
            "modified_time": "2025-04-27T08:06:41Z",
            "import_time": "2025-12-02T22:30:55.761624805Z",
            "sha256": "6505d88c061e297b18178a440c9d55729c873a37a57a09115befe1fb6eb2a22e",
            "ranges": [
                {
                    "type": "ECOSYSTEM",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "source": "kam193"
        },
        {
            "id": "pypi/2025-04-alchemyrpcs/websign",
            "modified_time": "2025-04-27T08:06:41Z",
            "import_time": "2025-12-02T23:07:18.804031341Z",
            "sha256": "25ea98e45fc0e99bfc731d77e2205bd14c901fc33ba6b8639b441b97739db0e2",
            "ranges": [
                {
                    "type": "ECOSYSTEM",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "source": "kam193"
        },
        {
            "versions": [
                "0.1.0"
            ],
            "id": "pypi/2025-04-alchemyrpcs/websign",
            "modified_time": "2025-04-27T08:06:41Z",
            "import_time": "2025-12-10T21:38:57.97003683Z",
            "sha256": "1c2cd23b18ab4866022a4e611707833e084f18086971595f873b40013905455b",
            "source": "kam193"
        },
        {
            "id": "RLUA-2026-00925",
            "modified_time": "2026-03-18T12:20:33Z",
            "import_time": "2026-03-19T12:20:44.064544521Z",
            "sha256": "7b3df3514dc1c53965225b35305ca024f87fd90d1481ec4698f8023330d10283",
            "source": "reversing-labs"
        }
    ]
}
References
Credits

Affected packages

PyPI / websign

Package

Name
websign
View open source insights on deps.dev
Purl
pkg:pypi/websign

Affected ranges

Affected versions

0.*
0.1.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/websign/MAL-2025-4273.json"