Tag: Heimdal Security Blog

StormCloud Hacks ISP to Spread Malware Posing as Software Updates

The StormCloud Chinese threat group used a compromised Internet Service Provider (ISP) to distribute malware that spoofed software updates. The attackers exploited a vulnerable HTTP software system that failed to authenticate digital signatures. The DNS spoofing campaign impacted Windows and…

10 Best Fortinet Competitors and Alternatives

While Fortinet offers strong endpoint protection and good integration, it has a few drawbacks including management complexities and also lacks OS compatibility checks. This article reviews the top 10 competitors and alternatives to Fortinet, showcasing options that might provide better…

Sitting Ducks DNS Attacks Used to Hijack Over 35,000 Domains

More than 35,000 registered domains have been hijacked by threat actors in so-called Sitting Ducks attacks that allow claiming a domain without having access to the owner’s account at the DNS provider or registrar. Cybercriminals utilize inadequate ownership verification at…

8 EDR Best Practices You Need to Pay Attention to in 2024

Endpoint detection and response (EDR) is one of the most important and fundamental cybersecurity products on the market. Effectively, it acts as a modern-day, cloud-based defense against viruses, malware, and a whole range of other real-time cyber threats. And of…

Hackers Exploit Vmware ESXi Vulnerability in Ransomware Attacks

Microsoft researchers revealed that ransomware threat groups exploit the VMware ESXi vulnerability CVE-2024-37085 for mass encryption. The researchers discovered the VMware ESXi authentication bypass vulnerability on June 25. After that, VMware released a fix in the ESXi 8.0 U3 version.…

DigiCert Revokes 83,267 TLS Certificates Due to DNS Check Problem

DigiCert announced they’ll revoke 83,267 SSL/TLS certificates impacting 6,807 subscribers due to an issue of DNS-based validation. The Certificate Authority organization required the affected customers to reissue their certificates within 24 hours. Then set the deadline for August 3rd, to…