mal-2026-3403
Vulnerability from ossf_malicious_packages
Published
2026-05-09 16:56
Modified
2026-05-09 16:56
Summary
Malicious code in textwrap-formatter (PyPI)
Details
-= Per source details. Do not edit below this line.=-
Source: kam193 (18da24e92fd40457ad3df2af568c07d41b35f44e6e07e8fac3bf0eafba9c2154)
During installation, obfuscated code exfiltrates cryptocurrency wallet data to a hardcoded location and places a backdoor through a new authorized SSH key. Information about the placed backdoor is sent back to the attacker, and sshd configuration is adjusted to ensure the successful remote connection.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-05-ninja-core-utils
Reasons (based on the campaign):
-
The package overrides the install command in setup.py to execute malicious code during installation.
-
obfuscation
-
crypto-related
-
exfiltration-crypto
-
backdoor
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "textwrap-formatter"
},
"versions": [
"1.2.4",
"1.2.5"
]
}
],
"credits": [
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)",
"type": "REPORTER"
}
],
"database_specific": {
"iocs": {
"ips": [
"144.126.142.148"
],
"urls": [
"http://144.126.142.148:5555/tao",
"http://144.126.142.148:5555/report"
]
},
"malicious-packages-origins": [
{
"id": "pypi/2026-05-ninja-core-utils/textwrap-formatter",
"import_time": "2026-05-09T17:23:17.197007257Z",
"modified_time": "2026-05-09T16:56:23.52583Z",
"sha256": "18da24e92fd40457ad3df2af568c07d41b35f44e6e07e8fac3bf0eafba9c2154",
"source": "kam193",
"versions": [
"1.2.4",
"1.2.5"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (18da24e92fd40457ad3df2af568c07d41b35f44e6e07e8fac3bf0eafba9c2154)\nDuring installation, obfuscated code exfiltrates cryptocurrency wallet data to a hardcoded location and places a backdoor through a new authorized SSH key. Information about the placed backdoor is sent back to the attacker, and sshd configuration is adjusted to ensure the successful remote connection.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-05-ninja-core-utils\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 - obfuscation\n\n\n - crypto-related\n\n\n - exfiltration-crypto\n\n\n - backdoor\n",
"id": "MAL-2026-3403",
"modified": "2026-05-09T16:56:23Z",
"published": "2026-05-09T16:56:23Z",
"references": [
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/textwrap-formatter"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in textwrap-formatter (PyPI)"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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