MAL-2026-5876
Malicious code in temp-development-package-test (PyPI)
Details
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## Source: kam193 (dcb57e25c8993eacafd70b6d4add3460419c7f2c7083ee50397700f1e1238d4c) Starting with version 0.4, package installs a sitecustomize.py that executes during Python engine initialization. The embeded code uses mshta to download malicious code, as in other packages from the campaign.
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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-06-easyaillm
Reasons (based on the campaign):
- Downloads and executes a remote executable.
- obfuscation
- malware
Are you affected?
Enter the version of the package you're using.
Affected packages
No fixed version published yet for temp-development-package-test (pip). Pin to a known-safe version or switch to an alternative.
References
- https://www.virustotal.com/gui/file/1a5beab4a6facb46b4afc5f8526e1327e6c7d740ccaf34c6a921ac18eff29427/detection [EVIDENCE]
- https://www.virustotal.com/gui/file/4c99c8edfc4444f46932f14afccb2952a3850df765765f9ac793d69f318c192f/detection [EVIDENCE]
- https://www.virustotal.com/gui/file/0649f50ead3695f41c1243883200bdb775410bcd8c8fb88277740a625a154e25 [EVIDENCE]
- https://www.virustotal.com/gui/file/926e8f1a7f349ff1eef31f89fa8ffe265c30b92e310e8bea19962d38f8c32129 [EVIDENCE]
- https://bad-packages.kam193.eu/pypi/package/temp-development-package-test [WEB]