Frequency
3
occurrences
First Seen
April 22, 2026
Last Seen
April 25, 2026
Related Threat Clusters
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Persistent Firestarter Malware Targets Cisco Firepower Devices in US Agencies
A sophisticated backdoor malware named Firestarter has been discovered on Cisco Firepower devices, attributed to the state-sponsored threat actor UAT-4356. The malware exploits two vulnerabilities, CVE-2025-20333 and…
37 articles · Updated April 23, 2026 -
Kyber Ransomware Targets Windows and VMware ESXi Systems
The Kyber ransomware group has launched a coordinated attack targeting both Windows file servers and VMware ESXi systems. In March 2026, cybersecurity firm Rapid7 analyzed two variants of the ransomware deployed in the…
3 articles · Updated April 22, 2026
Recent Intelligence Reports
- Tr Kyber Ransomware Double Trouble Windows Esxi Attacks Explained — www.rapid7.com · April 25, 2026
- T1082 — attack.mitre.org · April 24, 2026
- Kyber Ransomware Targets Windows and ESXi — Socprime · April 22, 2026