mal-2025-5123
Vulnerability from ossf_malicious_packages
Published
2025-05-27 05:53
Modified
2025-12-11 09:27
Summary
Malicious code in pyfernet (PyPI)
Details
-= Per source details. Do not edit below this line.=-
Source: kam193 (5a2f90c0e3c6e46456cd3e319aaaf4a7b53475a554a997a964fdda898e85fcd0)
If imported, the module starts a multi-stage infostealer, exfiltrating browser data as well as crypto wallets, and also attempts to monitor clipboard looking for crypto wallets addresses
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-05-fernets
Reasons (based on the campaign):
-
infostealer
-
clipboard-stealing
-
exfiltration-generic
-
obfuscation
-
exfiltration-browser-data
-
exfiltration-crypto
-
typosquatting
Credits
ReversingLabs
www.reversinglabs.com
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pyfernet",
"purl": "pkg:pypi/pyfernet"
},
"versions": [
"0.0.1"
]
}
],
"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": {
"ips": [
"196.251.81.229"
],
"urls": [
"http://196.251.81.229:6969/1.txt",
"http://196.251.81.229:6969/download/svchost.bat",
"http://196.251.81.229:6969/clippa.txt",
"http://196.251.81.229:6969/2.txt",
"http://196.251.81.229:8000/repeter/viiZ8YGt0HnubnyN"
]
},
"malicious-packages-origins": [
{
"id": "RLMA-2025-03020",
"import_time": "2025-06-18T15:06:02.139766476Z",
"modified_time": "2025-06-18T10:15:16Z",
"sha256": "ed80ef98612eb3aaad949163f4f0cc751265b3940a964d57baf1153a585d14cb",
"source": "reversing-labs",
"versions": [
"0.0.1"
]
},
{
"id": "pypi/2025-05-fernets/pyfernet",
"import_time": "2025-12-02T22:30:55.463151667Z",
"modified_time": "2025-05-27T05:53:30Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"sha256": "fdff1f19e5f1ab997df824814e20a0e45bd067a964d72433e069ea9d343d0cf1",
"source": "kam193"
},
{
"id": "pypi/2025-05-fernets/pyfernet",
"import_time": "2025-12-02T23:07:18.487572125Z",
"modified_time": "2025-05-27T05:53:30Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"sha256": "5a2f90c0e3c6e46456cd3e319aaaf4a7b53475a554a997a964fdda898e85fcd0",
"source": "kam193"
},
{
"id": "pypi/2025-05-fernets/pyfernet",
"import_time": "2025-12-10T21:38:57.702832487Z",
"modified_time": "2025-05-27T05:53:30Z",
"sha256": "0980354b90f27172271c592fe956b26f0da8bc72c831d8992ca262c4dda1edc5",
"source": "kam193",
"versions": [
"0.0.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (5a2f90c0e3c6e46456cd3e319aaaf4a7b53475a554a997a964fdda898e85fcd0)\nIf imported, the module starts a multi-stage infostealer, exfiltrating browser data as well as crypto wallets, and also attempts to monitor clipboard looking for crypto wallets addresses\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-05-fernets\n\n\nReasons (based on the campaign):\n\n\n - infostealer\n\n\n - clipboard-stealing\n\n\n - exfiltration-generic\n\n\n - obfuscation\n\n\n - exfiltration-browser-data\n\n\n - exfiltration-crypto\n\n\n - typosquatting\n",
"id": "MAL-2025-5123",
"modified": "2025-12-11T09:27:53Z",
"published": "2025-05-27T05:53:30Z",
"references": [
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/pyfernet"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in pyfernet (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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