Antivirus software detects, blocks, and removes malicious code, helping reduce the risk of malware-driven data theft and system disruption.
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Background for this topic.
Antivirus software scans files and running processes to detect and remove malicious code such as viruses, worms, trojans, ransomware, and spyware. It uses signature databases, heuristic rules, and behavioral analysis to identify threats during real-time monitoring or scheduled scans. Regular updates to detection rules are necessary to recognize new malware variants and reduce false negatives.
While antivirus helps block many common malware infections on endpoints, it has limited effectiveness against advanced threats like fileless malware or attacks that evade signature detection. Security teams should combine antivirus with complementary tools such as endpoint detection and response (EDR) to improve visibility and threat hunting. Proper tuning is important to minimize false positives and performance impacts that can disrupt operations or obscure genuine alerts.
Symantec found that Medusa has listed almost 400 victims on its data leaks site since early 2023, demanding ransom payments as high as $15m
The threat actors behind the Medusa ransomware have claimed nearly 400 victims since it first emerged in January 2023, with the financially motivated attacks witnessing a 42% increase between 2023 and 2024
Trend Micro™ Managed XDR assisted in an investigation of a B2B BEC attack that unveiled an entangled mesh weaved by the threat actor with the help of a compromised server, ensnaring three business partners in a scheme that spanned for days. This article features investigation insights, a proposed incident timeline, and recommended security practices.