Related Threat Clusters
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Critical UEFI Secure Boot Bypass Vulnerability Discovered
ESET researchers identified a significant vulnerability, CVE-2024-7344, allowing bypass of UEFI Secure Boot on numerous systems. This flaw affects UEFI applications signed by multiple vendors, enabling attackers to…
4 articles · Updated June 18, 2026 -
Old UEFI Shims Exploit Bypass of Secure Boot Security
ESET researchers have discovered 11 outdated UEFI shim bootloaders, all version 0.9 or below, that can bypass UEFI Secure Boot protections on systems trusting Microsoft's 2011 certificate. These vulnerabilities allow…
14 articles · Updated July 14, 2026 -
Bactor Ransomware Identified in Cybersecurity Monitoring
CYFIRMA Research and Advisory Team has identified Bactor Ransomware while monitoring underground forums. This ransomware targets Windows systems and affects multiple industries and technologies. The findings are part of…
5 articles · Updated November 20, 2025 -
Emergence of New Ransomware Variants: Bactor, ChickenKiller, and Midnight
Multiple ransomware strains, including Bactor, ChickenKiller, and Midnight, have been identified by CYFIRMA Research and Norton. Bactor and ChickenKiller ransomware target Windows systems, while Midnight ransomware has…
7 articles · Updated November 27, 2025
Recent Intelligence Reports
- Forgotten UEFI shims undermining Secure Boot — Welivesecurity · July 14, 2026
- Under Cloak Uefi Secure Boot Introducing Cve 2024 7344 — www.welivesecurity.com · June 18, 2026
- Weekly Intelligence Report – 28 November 2025 — Cyfirma · November 27, 2025