{"id":"MAL-2026-18343","summary":"Malicious code in numprint (PyPI)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (ca6ff316077349c92e2d1e5d7c3683a16e6542b952d5c7fc8743efa5d4c80243)\nDuring installation the package starts a background process executing commands provided by the attacker. The C2 communication happens through a GitHub Gist.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-10-numprint\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 - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.\n\n\n - rat\n","modified":"2026-10-27T17:30:37.252425671Z","published":"2026-10-27T16:48:48Z","database_specific":{"iocs":{"urls":["https://api.github.com/gists/3775fd9235aa6ef29e96eb96274a0e34"]},"malicious-packages-origins":[{"modified_time":"2026-10-27T16:48:48.533873Z","sha256":"ca6ff316077349c92e2d1e5d7c3683a16e6542b952d5c7fc8743efa5d4c80243","source":"kam193","versions":["1.2.0"],"id":"pypi/2026-10-numprint/numprint","import_time":"2026-10-27T17:13:14.404099688Z"}]},"references":[{"type":"WEB","url":"https://bad-packages.kam193.eu/pypi/package/numprint"}],"affected":[{"package":{"name":"numprint","ecosystem":"PyPI","purl":"pkg:pypi/numprint"},"versions":["1.2.0"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/numprint/MAL-2026-18343.json"}}],"schema_version":"1.9.2","credits":[{"name":"Kamil Mańkowski (kam193)","contact":["https://github.com/kam193","https://bad-packages.kam193.eu/"],"type":"REPORTER"}]}