mal-2025-6549
Vulnerability from ossf_malicious_packages
Published
2025-07-16 19:47
Modified
2025-12-11 09:27
Summary
Malicious code in memtools (PyPI)
Details
-= Per source details. Do not edit below this line.=-
Source: kam193 (fafb3bba871c43e80681f3c9f4618ec7547fe2295b120eb93adf31a59bf021f3)
Installing the package triggers a code that looks like downloading a picture, but in fact downloads and starts an executable with malware. Note that file supplied from the URL differs depending on the presence of the special header
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-07-memlib
Reasons (based on the campaign):
-
The package overrides the install command in setup.py to execute malicious code during installation.
-
Downloads and executes a remote executable.
-
malware
Credits
ReversingLabs
www.reversinglabs.com
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "memtools",
"purl": "pkg:pypi/memtools"
},
"versions": [
"2.0.0"
]
}
],
"credits": [
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)"
},
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)",
"type": "REPORTER"
},
{
"contact": [
"https://www.reversinglabs.com"
],
"name": "ReversingLabs",
"type": "FINDER"
}
],
"database_specific": {
"iocs": {
"urls": [
"https://image-logo-popup-files.vercel.app/public/image.jpg"
]
},
"malicious-packages-origins": [
{
"id": "RLMA-2025-03646",
"import_time": "2025-08-01T10:07:12.662341077Z",
"modified_time": "2025-07-31T19:15:44Z",
"sha256": "7610337007cb1518ff3ab5fddfce5cdf36a4df92b45d0f389d7e4d333e425780",
"source": "reversing-labs",
"versions": [
"2.0.0"
]
},
{
"id": "pypi/2025-07-memlib/memtools",
"import_time": "2025-12-02T22:30:55.335247775Z",
"modified_time": "2025-07-16T19:47:30.822878Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"sha256": "442cad9234093b04b5d1e1609b4059b82184819bcbcaf06d71e2e11875b18d5e",
"source": "kam193"
},
{
"id": "pypi/2025-07-memlib/memtools",
"import_time": "2025-12-02T23:07:18.364197388Z",
"modified_time": "2025-07-16T19:47:30.822878Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"sha256": "fafb3bba871c43e80681f3c9f4618ec7547fe2295b120eb93adf31a59bf021f3",
"source": "kam193"
},
{
"id": "pypi/2025-07-memlib/memtools",
"import_time": "2025-12-10T21:38:57.592839204Z",
"modified_time": "2025-07-16T19:47:30.822878Z",
"sha256": "c2e5cff183529e337de2e1618244554c8c3d612b7b3383cf24bd2dcead166fe0",
"source": "kam193",
"versions": [
"2.0.0"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (fafb3bba871c43e80681f3c9f4618ec7547fe2295b120eb93adf31a59bf021f3)\nInstalling the package triggers a code that looks like downloading a picture, but in fact downloads and starts an executable with malware. Note that file supplied from the URL differs depending on the presence of the special header\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-07-memlib\n\n\nReasons (based on the campaign):\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n\n\n - Downloads and executes a remote executable.\n\n\n - malware\n",
"id": "MAL-2025-6549",
"modified": "2025-12-11T09:27:53Z",
"published": "2025-07-16T19:47:30Z",
"references": [
{
"type": "EVIDENCE",
"url": "https://www.virustotal.com/gui/file/0fc1e062c521184f7e0c9f23dfdeb5431414e35cb55886e87c5ff5ec92ff4603"
},
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/memtools"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in memtools (PyPI)"
}
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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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