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Massive PSAUX ransomware attack targets 22,000 CyberPanel instances

ID: ce7f94fc-bf13-5ec5-b6b1-912cef0bb877

STIX ID: report--ce7f94fc-bf13-5ec5-b6b1-912cef0bb877

Feed Name: Bleeping Computer

Threat Score
80/100

Date Published: 2024-10-29

Date Updated: 2026-04-20

Author: Lawrence Abrams

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Over 22,000 internet-exposed CyberPanel instances running vulnerable versions were mass-exploited via an unauthenticated RCE (root-level command execution) caused by defective per-page authentication, command injection, and middleware filter bypass; attackers deployed PSAUX ransomware (appending .psaux), a cryptominer, and other ransomware variants, while developers released patches (2.3.8) and LeakIX published a decryptor.

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