{"id":"MAL-2026-4286","summary":"Malicious code in polymarket-data-fetcher (PyPI)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (b6b5ac8b803d36ef490adff8a4d3110c4030063bbd2345e4b23d1871909638e9)\nThe code attempts to monitor the clipboard and replace copied cryptocurrency addresses, as well as establish persistence.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-05-polymarket-data-fetcher\n\n\nReasons (based on the campaign):\n\n\n - peristence-autorun\n\n\n - obfuscation\n\n\n - crypto-related\n\n\n - The package contains code to detect if it is running in a sandbox environment.\n\n\n - clipboard-modify\n\n\n - persistence\n","modified":"2026-05-24T19:00:53.704007629Z","published":"2026-05-24T18:23:49Z","database_specific":{"malicious-packages-origins":[{"sha256":"b6b5ac8b803d36ef490adff8a4d3110c4030063bbd2345e4b23d1871909638e9","id":"pypi/2026-05-polymarket-data-fetcher/polymarket-data-fetcher","import_time":"2026-05-24T18:54:37.083069188Z","versions":["1.2.4"],"source":"kam193","modified_time":"2026-05-24T18:23:49.84682Z"}]},"references":[{"type":"WEB","url":"https://bad-packages.kam193.eu/pypi/package/polymarket-data-fetcher"}],"affected":[{"package":{"name":"polymarket-data-fetcher","ecosystem":"PyPI","purl":"pkg:pypi/polymarket-data-fetcher"},"versions":["1.2.4"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/polymarket-data-fetcher/MAL-2026-4286.json"}}],"schema_version":"1.7.5","credits":[{"name":"Kamil Mańkowski (kam193)","contact":["https://github.com/kam193","https://bad-packages.kam193.eu/"],"type":"REPORTER"}]}