MAL-2025-3475

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/timekeeper-verifier/MAL-2025-3475.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2025-3475
Published
2025-02-25T18:18:21Z
Modified
2026-01-30T20:32:45.415297Z
Summary
Malicious code in timekeeper-verifier (PyPI)
Details

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

Source: kam193 (3a20fe9fed2445d097ddfd628d59e1b8149913aec4915c112cacfa9fb7cdfc6e)

This campaign is built from two parts: 1) packages named like time-check-server, snapshot-photo contain an innocent-looking code that sends "date" to a remote server, 2) packages named like alicloud-client are clones of legit aliyun-python-sdk-core package, with a small change in the client.py code, where it imports the time-check-server and calls it, but instead of a date, the credentials to the cloud are exfiltrated. There are also variations with AWS clients

Apparently, the campaign started at least 2 years ago with the snapshot-photo package containing the same functionality as the newer time-check-server (see https://github.com/pypi-data/pypi-mirror-238/blob/code/packages/snapshot-photo/snapshotphoto-0.0.3-py3-none-any.whl/snapshotphoto/date_format.py).

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

Campaign: 2025-02-alicloud-client

Reasons (based on the campaign):

  • clones-real-package

  • action-hidden-in-lib-usage

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

  • exfiltration-cloud-tokens

Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2025-04-23T16:06:46Z",
            "versions": [
                "1.0.1"
            ],
            "sha256": "87005aaa82cdcdac0a0d4c6d36e67ac25608db01d8ed2d87dcb8c62b7137fde1",
            "id": "RLMA-2025-02542",
            "source": "reversing-labs",
            "import_time": "2025-04-25T09:36:48.887586289Z"
        },
        {
            "modified_time": "2025-02-25T18:18:21Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "ECOSYSTEM"
                }
            ],
            "sha256": "226cb0f9a178aab0334014940359365a2cb5a328b5762c735095bbec28847942",
            "id": "pypi/2025-02-alicloud-client/timekeeper-verifier",
            "source": "kam193",
            "import_time": "2025-12-02T22:30:55.6504489Z"
        },
        {
            "modified_time": "2025-02-25T18:18:21Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "ECOSYSTEM"
                }
            ],
            "sha256": "3a20fe9fed2445d097ddfd628d59e1b8149913aec4915c112cacfa9fb7cdfc6e",
            "id": "pypi/2025-02-alicloud-client/timekeeper-verifier",
            "source": "kam193",
            "import_time": "2025-12-02T23:07:18.693188627Z"
        },
        {
            "modified_time": "2025-02-25T18:18:21Z",
            "versions": [
                "1.0.1"
            ],
            "sha256": "82c37c5db80adcf285cdf43663d4e49d0d77ea76f9d07372bbffcca5d8333fd7",
            "id": "pypi/2025-02-alicloud-client/timekeeper-verifier",
            "source": "kam193",
            "import_time": "2025-12-10T21:38:57.878135783Z"
        },
        {
            "modified_time": "2025-02-25T18:18:21Z",
            "versions": [
                "1.0.1"
            ],
            "sha256": "7202ba614b062cc8065fe0396dc190e0ccd48da5ae30ef844357bbee4bba382b",
            "id": "pypi/2025-02-alicloud-client/timekeeper-verifier",
            "source": "kam193",
            "import_time": "2026-01-30T19:43:58.403065048Z"
        }
    ],
    "iocs": {
        "domains": [
            "checktimeserver.org",
            "aliyun-sdk-requests.xyz"
        ],
        "urls": [
            "https://api.checktimeserver.org/",
            "https://api.aliyun-sdk-requests.xyz/"
        ]
    }
}
References
Credits

Affected packages

PyPI / timekeeper-verifier

Package

Name
timekeeper-verifier
View open source insights on deps.dev
Purl
pkg:pypi/timekeeper-verifier

Affected ranges

Affected versions

1.*
1.0.1

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/timekeeper-verifier/MAL-2025-3475.json"