CISA warns of Chinese "BrickStorm" malware attacks on VMware servers

BleepingComputer

December 4, 2025 at 6:19 PM

Actively Exploited

Summary

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning regarding a new malware threat named BrickStorm, which is being used by Chinese hackers to backdoor VMware vSphere servers. This poses a significant risk to organizations using these servers, as it could lead to unauthorized access and potential data breaches.

Original Article Summary

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) warned network defenders of Chinese hackers backdooring VMware vSphere servers with Brickstorm malware. [...]

Impact

VMware vSphere servers

In the Wild

Yes

Timeline

Newly disclosed

Remediation

Organizations are advised to implement security best practices, including regular updates and patches for VMware products, network segmentation, and monitoring for unusual activity on their servers.

Read Original Article

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