Fortinet announced the latest semi-annual FortiGuard Labs Global Threat Landscape Report. Threat intelligence from the second half of 2021 reveals an increase in the automation and speed of attacks demonstrating more advanced persistent cybercrime strategies that are more destructive and unpredictable. In addition, the expanding attack surface of hybrid workers and hybrid IT is a focal point that cyber adversaries are attempting to exploit. For a detailed view of the report, as well as some important takeaways, read the blog. Highlights of the 2H 2021 report follow:
The Log4j vulnerabilities that occurred in late 2021 demonstrate the rapidly increasing speed of exploit that cybercriminals are attempting to leverage to their advantage. Despite emerging in the second week of December, exploitation activity escalated quickly enough, in less than a month, to make it the most prevalent IPS detection of the entire second half of 2021. In addition, Log4j had nearly 50x the activity volume in comparison to the well-known outbreak, Proxy Logon, that happened earlier in 2021. The reality is that organizations have very little time to react or patch today given the speeds that cyber adversaries are employing to maximize fresh opportunities. Organizations need AI and ML-powered intrusion prevention systems (IPS), aggressive patch management strategies, and the threat intelligence visibility to prioritize those threats propagating most quickly in the wild to reduce overall risk.
Some lesser or low-lying threats have the potential to cause bigger problems in the future and are worthy of watching. An example is newly crafted malware designed to exploit Linux systems, often in the form of executable and linkable format (ELF) binaries. Linux runs the back-end systems of many networks and container-based solutions for IoT devices and mission-critical applications, and it is becoming a more popular target for attackers. In fact, the rate of new Linux malware signatures in Q4 quadrupled that of Q1 2021 with ELF variant Muhstik, RedXOR malware, and even Log4j being examples of threats targeting Linux. The prevalence of ELF and other Linux malware detections doubled during 2021. This growth in variants and volume suggests that Linux malware is increasingly part of adversaries’ arsenal. Linux needs to be secured, monitored and managed as any other endpoint in the network with advanced and automated endpoint protection, detection and response. In addition, security hygiene should be prioritized to provide active threat protection for systems that may be affected by low-lying threats.
Threat trends demonstrate that botnets are evolving to adopt newer and more evolved cybercriminal attack techniques. Instead of being primarily monolithic and focused mostly on DDoS attacks, botnets are now multipurpose attack vehicles leveraging a variety of more sophisticated attack techniques, including ransomware.
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