MAL-2026-2820

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/chainutils/MAL-2026-2820.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-2820
Published
2026-04-16T21:15:50Z
Modified
2026-04-16T22:33:46.480367Z
Summary
Malicious code in chainutils (PyPI)
Details

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

Source: kam193 (149995e4a1c4d289fa58be2adcab4095dca7c429097ad6735afef8270e7e4cb3)

During import, package triggers malicious code. First, it ensures persistency e.g., through the autostart registry key. Then, based on the encrypted config, an exfiltration demon is started. It registeres the instance in the C2 server and starts searching the file system looking for files matching given filename patterns and then monitoring changes. Discovered files are exfiltrated to a hardcoded remote target.

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

Campaign: 2026-04-genosys

Reasons (based on the campaign):

  • files-exfiltration

  • peristence-autorun

  • obfuscation

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

  • exfiltration-credentials

  • persistence

  • crypto-related

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "kam193",
            "sha256": "149995e4a1c4d289fa58be2adcab4095dca7c429097ad6735afef8270e7e4cb3",
            "versions": [
                "1.0.0"
            ],
            "import_time": "2026-04-16T21:48:05.648428413Z",
            "modified_time": "2026-04-16T21:15:50.554574Z",
            "id": "pypi/2026-04-genosys/chainutils"
        },
        {
            "source": "kam193",
            "sha256": "28af9b88d438eb86e5f9c4f0e9718afd7feec970c6f76ab8886e5fbc41e5f49d",
            "versions": [
                "1.0.0"
            ],
            "import_time": "2026-04-16T22:18:51.311147773Z",
            "modified_time": "2026-04-16T21:15:50.554574Z",
            "id": "pypi/2026-04-genosys/chainutils"
        }
    ],
    "iocs": {
        "urls": [
            "https://161.97.81.147:8080"
        ],
        "ips": [
            "161.97.81.147"
        ]
    }
}
References
Credits

Affected packages

PyPI / chainutils

Package

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

Affected ranges

Affected versions

1.*
1.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/chainutils/MAL-2026-2820.json"