MAL-2025-191533

Dashboard / Malicious Package / MAL-2025-191533

MAL-2025-191533

Summary: Malicious code in spellcheckers (PyPI)

Details: Source: google-open-source-security (c83520810b148ec74e509b16851a1fafa1bec576b502a5debabd9b52520d9754) This package is malicious and typosquating the legitimate pyspellchecker library. This package will deploy a remote-access trojan that allows the attacker full control of the victim's host. Source: kam193 (6585d4c29dd97a1e46f30047c7d67a6e4bbb19f9b41bc1f9ff0b5fc34b839c75) Package contains hidden code that is effectively run during importing and downloads second stage code. Then, a process running in background periodically connects to a remote host and waits for next code to execute Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2025-11-spellcheckers Reasons (based on the campaign): - obfuscation - Downloads and executes a remote malicious script. - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

References: https://helixguard.ai/blog/malicious-spellcheckers-2025-11-19, https://securityonline.info/pypi-typosquat-delivers-multi-layer-python-rat-bypassing-scanners-with-xor-encryption/, https://helixguard.ai/blog/malicious-spellcheckers-2025-11-19, https://bad-packages.kam193.eu/pypi/package/spellcheckers, https://www.aikido.dev/blog/malicious-pypi-packages-spellcheckpy-and-spellcheckerpy-deliver-python-rat