In the latest report from network security firm, WatchGuard, researchers found that zero-day malware made up 74 percent off all threats detected in the first quarter of 2021. This figure is significant because many mainstream anti-virus software programs cannot detect this type of threat. It is the first time these evasive malware threats exceeded traditional threats.
The experts hope organizations recognize this finding as another example of the importance of establishing a "layered, proactive security strategy that involves machine learning and behavioral analysis to detect and block new and advanced threats."
The report also lists the ransomware, Zmutzy, as one of the top-two most common malware threats by volume. This malware uses a simple file name trick - using a comma rather than a period or a manually adjusted icon - to make a zip file look like a legitimate PDF file.
Another key finding is the rising popularity of the fileless malware variant, XML.JSLoader. Fileless malware runs within legitimate programs and in a non-interactive way, making advanced endpoint detection and response measures an essential part of system security. "New WatchGuard Research Reveals Traditional Anti-Malware Solutions Miss Nearly 75% of Threats" www.globenewswire.com (Jun. 24, 2021).