SolyxImmortal Python Malware Steals Browser Passwords, Cookies, Files, and Keystrokes

Cybersecuritynews •Tushar Subhra Dutta • June 2, 2026

A new Python-based malware called SolyxImmortal has been found quietly stealing browser passwords, cookies, sensitive files, and keystrokes from infected Windows systems. The malware uses well-known Python libraries and multi-threading to carry out its operations simultaneously, making it harder to detect while it runs in the background. What makes SolyxImmortal stand out is its apparent […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

SolyxImmortal Malware Steals Sensitive User Data via Python Exploits SolyxImmortal is a newly identified Python-based malware that targets Windows systems, stealing sensitive data such as browser passwords, cookies, files, and keystrokes. Utilizing common Python libraries and multi-threading techniques, it operates stealthily in the background, making detection challenging. The malware's efficiency in executing multiple data theft operations simultaneously raises concerns about its potential impact on users' privacy and security. Security researchers, including Cyfirma, have reported on its capabilities, although specific numbers of affected users or systems have not been disclosed. The malware is currently active and poses a significant threat to individuals and organizations alike. 2 sources 62

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SolyxImmortal Python Malware Steals Browser Passwords, Cookies, Files, and Keystrokes

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Malware (1)

MITRE ATT&CK (3)

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