Cloud Atlas activity in the first half of 2025: what changed

Securelist

December 19, 2025 at 10:00 AM

Actively Exploited

Overview

Kaspersky researchers have reported on the recent activities of the Cloud Atlas advanced persistent threat (APT) group in early 2025. This group has updated their arsenal with new malicious tools, including backdoors known as VBShower, VBCloud, PowerShower, and CloudAtlas. These implants are designed to infiltrate and control targeted systems, which typically include government and corporate networks. The evolving tactics of Cloud Atlas highlight the ongoing risks to organizations, particularly those in sensitive sectors. Companies need to remain vigilant and enhance their cybersecurity measures to defend against these sophisticated threats.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Government networks, corporate systems
Action Required: Organizations should implement updated security protocols and monitor for signs of intrusion.
Timeline: Newly disclosed

Original Article Summary

Kaspersky expert describes new malicious tools employed by the Cloud Atlas APT, including implants of their signature backdoors VBShower, VBCloud, PowerShower, and CloudAtlas.

Impact

Government networks, corporate systems

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Organizations should implement updated security protocols and monitor for signs of intrusion. Regularly patching systems and employing advanced threat detection solutions are recommended.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to APT, Malware, Kaspersky.

Read Original Article

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