QuimaRAT: Cross-Platform Java RAT as MaaS for Windows, Linux and macOS

Colleagues, I would like to draw your attention to a cybersecurity development.

LevelBlue researchers have identified QuimaRAT, a Java-based RAT targeting Windows, Linux and macOS.

Key points:
• the malware is sold under a MaaS model, with subscriptions from $150 per month to $1,200 for lifetime access;
• its modular architecture enables plugin loading and updates via C2;
• it includes a builder and delivery tools, including fake download pages and SmartScreen bypass;
• persistence relies on standard OS mechanisms, while communication with C2 is maintained by a watchdog.

Why it matters: such platforms lower the barrier to entry for attackers and accelerate the spread of malware campaigns across operating systems.

How do you assess the threat posed by cross-platform MaaS tools?

#cybersecurity #malware #Windows