Full Report
Kaspersky expert describes new malicious tools employed by the Cloud Atlas APT, including implants of their signature backdoors VBShower, VBCloud, PowerShower, and CloudAtlas.
Analysis Summary
# Threat Actor: Cloud Atlas APT
## Attribution & Identity
Threat actor is identified as the **Cloud Atlas APT**. No specific nation-state attribution or other known aliases were explicitly detailed in the provided context snippet, although the name itself is established.
## Activity Summary
The article describes a new campaign observed during H1 2025 (based on the URL structure referencing 'h1-2025-campaign') where the threat actor employed new malicious tools.
## Tactics, Techniques & Procedures
- **Implied:** Use of custom or new signature backdoors.
- **Specific malware implants mentioned:** VBShower, VBCloud, PowerShower, and CloudAtlas.
- *MITRE ATT&CK IDs were not present in the provided context.*
## Targeting
- **Sectors:** Not specified in the provided context.
- **Geography:** Not specified in the provided context.
- **Victims:** Not specified in the provided context.
## Tools & Infrastructure
- **Malware families used:** VBShower, VBCloud, PowerShower, CloudAtlas (backdoors/implants).
- **Infrastructure (C2, domains, IPs):** None provided in the context.
## Implications
The description suggests an active and evolving threat, as the actor is deploying *new* malicious tools and refreshing its signature backdoors, indicating continued operational activity and potential evasion improvements.
## Mitigations
- Focus monitoring and detection capabilities on the newly identified backdoors, specifically: VBShower, VBCloud, PowerShower, and CloudAtlas.
- Generic defense strategies necessary for APTs employing custom implants should be prioritized (Endpoint Detection and Response, network traffic analysis).