New Botnet Puts Home PCs at Risk: AV-Comparatives Publishes Malware Protection Test

In a recent evaluation, AV-Comparatives has scrutinized 20 consumer security products, pitting them against a staggering 10,000 malware samples. This rigorous testing comes in light of the emergence of the x47.c botnet, a new threat designed to compromise Windows PCs by stealing sensitive information such as passwords, browser cookies, and cryptocurrency wallet data.

Understanding the Threat of x47.c

Launched in early October 2026, the x47.c botnet is marketed by a group known as WraithTools. Its capabilities extend beyond mere credential theft; it can transform infected devices into proxies for cybercriminals and even facilitate distributed denial-of-service (DDoS) attacks. The botnet’s “AI Stealth” feature employs advanced techniques to maintain its presence on compromised systems, making it a formidable adversary for home users.

According to research from Qrator Research Labs, x47.c can extract saved passwords and cookies from web browsers, gather Discord tokens, and siphon off data from AI service accounts. While the findings are based on the botnet’s promotional materials, they underscore the critical need for robust antivirus and endpoint security solutions, particularly since the removal of the malware does not restore stolen credentials.

The Importance of Cybersecurity for Home Users

Home computers are increasingly becoming targets for cybercriminals, with a single compromised device capable of exposing sensitive banking information and customer data. This is particularly concerning for freelancers and small businesses, which often lack dedicated IT resources to monitor and mitigate such threats. The U.S. Department of Justice has highlighted this risk, noting the extradition of a suspect linked to the distribution of remote access malware to approximately 80,000 freelancers.

AV-Comparatives’ Methodology

To assess the effectiveness of consumer security products, AV-Comparatives conducted its Malware Protection Test in September 2026. The evaluation encompassed various infection vectors, including network drives and USB devices, alongside malware already present on the disk. Each product was tested both online and offline, with a focus on its ability to prevent or reverse changes made by malware.

The results were telling: while 15 out of 20 products reached the highest protection tier, only six achieved the coveted ADVANCED+ award. These top performers included Bitdefender, ESET, G DATA, Kaspersky, Total Defense, and VIPRE. The testing also revealed a significant reliance on cloud-based detection, with offline detection rates varying widely, highlighting the importance of consistent internet connectivity for optimal protection.

Insights from AV-Comparatives

Andreas Clementi, Founder and CEO of AV-Comparatives, emphasized the indiscriminate nature of cybercriminals, stating, “Cybercriminals do not distinguish between a corporate network and a family PC. Every unprotected home computer is a potential source of stolen logins and a free resource for their botnets.” He advocates for the necessity of comprehensive security solutions for both private users and small offices, underscoring the tangible differences in product performance.

Key Takeaways for Consumers

  • Security suites are essential: With threats like x47.c targeting everyday PCs, robust security measures are crucial for all users.
  • Understanding detection vs. protection: Detection involves recognizing malicious files before execution, while protection entails stopping or reversing malware actions post-execution.
  • Consider multiple factors: When selecting a security product, consumers should evaluate recent test reports, pricing, ease of use, compatibility, and support, rather than relying solely on a single test outcome.

For those interested in a deeper understanding of the testing results, AV-Comparatives offers a comprehensive report detailing protection, detection, and false alarm rates, available free of charge at their website.

Tech Optimizer
New Botnet Puts Home PCs at Risk: AV-Comparatives Publishes Malware Protection Test