flashsimplelogger

{"modified":"2025-12-11T09:27:53Z","published":"2025-08-05T16:11:02Z","schema_version":"1.7.4","id":"MAL-2025-191729","summary":"Malicious code in flashsimplelogger (PyPI)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (8c4753ee44e481f1f689cfaeddcddaef8dcdf86fbb1db19b3fe0acc2fadac305)\nIt's a clone of \"loguru\" package which on import loads a second-stage script from loguru[.]guru. This makes a few checks and downloads the next stage, which is a code obfuscated with PyArmor with unclear behaviour.\n\nThe way the malicious code has been embedded could be called a \"sophisticated\" threat. The code is in the _logger.py in two places: the payload in L2242 as a long string constraint of only whitespaces, which are then transformed into bits and bytes, and later compiled and executed using \"types.FunctionType\" during initialisation of Core class.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-07-loquru\n\n\nReasons (based on the campaign):\n\n\n - typosquatting\n\n\n - obfuscation\n\n\n - clones-real-package\n\n\n - Downloads and executes a remote malicious script.\n","affected":[{"package":{"ecosystem":"PyPI","name":"flashsimplelogger"},"versions":["0.1.0","0.2.0"]}],"references":[{"type":"WEB","url":"https://github.com/Delgan/loguru/issues/1363"},{"type":"WEB","url":"https://bad-packages.kam193.eu/pypi/package/flashsimplelogger"}],"credits":[{"name":"Kamil Mańkowski (kam193)","contact":["https://github.com/kam193","https://bad-packages.kam193.eu/"]},{"name":"Kamil Mańkowski (kam193)","type":"REPORTER","contact":["https://github.com/kam193","https://bad-packages.kam193.eu/"]}],"database_specific":{"iocs":{"domains":["loguru.guru"],"urls":["https://loguru.guru/version/is_match_revision","https://loguru.guru/version/code"]},"malicious-packages-origins":[{"source":"kam193","sha256":"4e15e4d836902748ddc1299d65d490003096ba69cc7a42f9aa54a08616c99616","import_time":"2025-12-02T22:30:55.197616772Z","id":"pypi/2025-07-loquru/flashsimplelogger","modified_time":"2025-08-05T16:11:02.979601Z","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]},{"source":"kam193","sha256":"8c4753ee44e481f1f689cfaeddcddaef8dcdf86fbb1db19b3fe0acc2fadac305","import_time":"2025-12-02T23:07:18.206681709Z","id":"pypi/2025-07-loquru/flashsimplelogger","modified_time":"2025-08-05T16:11:02.979601Z","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]},{"source":"kam193","sha256":"29b910f6bee20818c26414d261dfd8f0c9a0e6cf428265e3497a31ec16302b94","import_time":"2025-12-10T21:38:57.491355503Z","id":"pypi/2025-07-loquru/flashsimplelogger","modified_time":"2025-08-05T16:11:02.979601Z","versions":["0.1.0","0.2.0"]}]}}