Top Highlights
-
Emerging Threat: A new ransomware family named Reynolds incorporates a built-in Bring Your Own Vulnerable Driver (BYOVD) component, which helps evade security measures by exploiting legitimate but flawed drivers.
-
Targeted Tactics: Reynolds uses a vulnerable NsecSoft NSecKrnl driver to disable multiple prominent security programs, complicating efforts by defenders to stop the attack.
-
Bundled Strategy: The integration of defense evasion directly into the ransomware payload makes attacks quieter and reduces the need for separate tools, enhancing the attackers’ effectiveness.
-
Rising Ransomware Activity: The overall ransomware landscape has seen a spike in attacks transitioning from traditional to cloud-based targets, with a notable increase in ransom payments and operations by new and existing groups.
Reynolds Ransomware Uses BYOVD for Evasion
Cybersecurity researchers have recently uncovered the Reynolds ransomware, a new threat that integrates a bring your own vulnerable driver (BYOVD) component directly into its payload. This malicious tactic allows attackers to exploit legitimate but flawed driver software. Consequently, they can escalate privileges and disable Endpoint Detection and Response (EDR) security tools, thus avoiding detection during the attack.
The Reynolds ransomware specifically employs an NsecSoft NSecKrnl driver, which contains a known vulnerability (CVE-2025-68947, CVSS score: 5.7). This flaw enables threat actors to terminate essential security programs provided by companies like Avast, CrowdStrike, and Symantec. The bundling of this driver with the ransomware significantly reduces the need for separate tools to cripple security defenses. Experts note that this evolution represents a strategic shift for attackers, making attacks quieter and harder to halt before they escalate.
Implications of Evolved Ransomware Tactics
The use of BYOVD in the Reynolds attack is not entirely new; similar tactics have appeared in previous incidents, such as those involving Ryuk ransomware. However, the current trend shows a marked increase in effectiveness as cybercriminals adopt more sophisticated methods. The presence of secondary tools, like the GotoHTTP remote access program, indicates a strategy focused on maintaining persistent access to compromised systems.
As cybersecurity professionals analyze these developments, they highlight the challenges in defending against such coordinated efforts. The trend underscores the importance of vigilance and adaptability in security measures. As ransomware tactics evolve, understanding the methods used by attackers will be crucial for organizations striving to protect their systems. The ongoing battle against ransomware continues to shape the landscape of cybersecurity, calling for enhanced strategies and collaborative efforts to safeguard sensitive data.
Stay Ahead with the Latest Tech Trends
Dive deeper into the world of Cryptocurrency and its impact on global finance.
Access comprehensive resources on technology by visiting Wikipedia.
DataProtection-V1
