mal-2025-191944
Vulnerability from ossf_malicious_packages
Published
2025-04-20 12:05
Modified
2025-12-11 09:27
Summary
Malicious code in zscaner (PyPI)
Details
-= Per source details. Do not edit below this line.=-
Source: kam193 (ee09d48ac6f9e7d0460c2a2bc7c9aaae013ce04ac342eb164683b214616e56d1)
Campaign is split into multiple packages that altogether exfiltrates data from desktop Telegram application.
- "pyapiepo" is a cover package that provides some useless features BUT also imports "zscaner"
- "zscaner", when imported, automatically runs a function that is an entry point to the whole process; it uses the "scan" from "reqinstall" to walk through directories. The package also provides main logic: filtering files, triggering archiving directories and exfiltrating them.
- "reqinstall" ensures "requests" are installed and provides a directory tree scanning function.
- "zmaker" provides functions to build archives from collected files.
- "zsender" provides functions to exfiltrate data, the remote URL and a function to deobfuscate configuration in other packages.
Altogether, they look for "Telegram Desktop" folder, archive user data stored there and exfiltrate to a remote location.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-04-zscaner
Reasons (based on the campaign):
-
target:telegram
-
exfiltration-generic
-
The malicious code is intentionally included in a dependency of the package
Credits
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "zscaner"
},
"versions": [
"1.2.0",
"1.3.0"
]
}
],
"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"
}
],
"database_specific": {
"iocs": {
"ips": [
"77.91.76.45"
],
"urls": [
"http://77.91.76.45:100/OPEN"
]
},
"malicious-packages-origins": [
{
"id": "pypi/2025-04-zscaner/zscaner",
"import_time": "2025-12-02T22:30:55.79750499Z",
"modified_time": "2025-04-20T12:05:56Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"sha256": "6668043ae2bc7032a11a782861883035f06c1553fa9a8b2f1ed9f2214c2683de",
"source": "kam193"
},
{
"id": "pypi/2025-04-zscaner/zscaner",
"import_time": "2025-12-02T23:07:18.84137537Z",
"modified_time": "2025-04-20T12:05:56Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"sha256": "ee09d48ac6f9e7d0460c2a2bc7c9aaae013ce04ac342eb164683b214616e56d1",
"source": "kam193"
},
{
"id": "pypi/2025-04-zscaner/zscaner",
"import_time": "2025-12-10T21:38:58.004351118Z",
"modified_time": "2025-04-20T12:05:56Z",
"sha256": "6f576cbb5c69265f66e820606e885aa1c9edc89fae12046bb3a7c29cca43eee8",
"source": "kam193",
"versions": [
"1.2.0",
"1.3.0"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (ee09d48ac6f9e7d0460c2a2bc7c9aaae013ce04ac342eb164683b214616e56d1)\nCampaign is split into multiple packages that altogether exfiltrates data from desktop Telegram application.\n\n1. \"pyapiepo\" is a cover package that provides some useless features BUT also imports \"zscaner\"\n2. \"zscaner\", when imported, automatically runs a function that is an entry point to the whole process; it uses the \"scan\" from \"reqinstall\" to walk through directories. The package also provides main logic: filtering files, triggering archiving directories and exfiltrating them. \n3. \"reqinstall\" ensures \"requests\" are installed and provides a directory tree scanning function.\n4. \"zmaker\" provides functions to build archives from collected files.\n5. \"zsender\" provides functions to exfiltrate data, the remote URL and a function to deobfuscate configuration in other packages.\n\nAltogether, they look for \"Telegram Desktop\" folder, archive user data stored there and exfiltrate to a remote location.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-04-zscaner\n\n\nReasons (based on the campaign):\n\n\n - target:telegram\n\n\n - exfiltration-generic\n\n\n - The malicious code is intentionally included in a dependency of the package\n",
"id": "MAL-2025-191944",
"modified": "2025-12-11T09:27:54Z",
"published": "2025-04-20T12:05:56Z",
"references": [
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/zscaner"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in zscaner (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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