BYOVD

Pierluigi Paganini April 10, 2025
An APT group exploited ESET flaw to execute malware

At least one APT group has exploited a vulnerability in ESET software to stealthily execute malware, bypassing security measures. Kaspersky researchers reported that an APT group, tracked as ToddyCat, has exploited a vulnerability in ESET software to stealthily execute malware, bypassing security. The vulnerability, tracked as CVE-2024-11859, is a DLL Search Order Hijacking issue that potentially allow […]

Pierluigi Paganini March 01, 2025
Ransomware gangs exploit a Paragon Partition Manager BioNTdrv.sys driver zero-day

Microsoft warns of a Paragon Partition Manager BioNTdrv.sys driver zero-day flaw actively exploited by ransomware gangs in attacks. Microsoft discovered five vulnerabilities in the Paragon Partition Manager BioNTdrv.sys driver. The IT giant reported that one of these flaws is exploited by ransomware groups in zero-day attacks. Paragon Partition Manager, available in Community and Commercial versions, manages hard drive […]

Pierluigi Paganini November 25, 2024
Malware campaign abused flawed Avast Anti-Rootkit driver

Threat actors exploit an outdated Avast Anti-Rootkit driver to evade detection, disable security tools, and compromise the target systems. Trellix researchers uncovered a malware campaign that abused a vulnerable Avast Anti-Rootkit driver (aswArPot.sys) to gain deeper access to the target system, disable security solutions, and gain system control. This alarming tactic corrupts trusted kernel-mode drivers, […]

Pierluigi Paganini February 09, 2024
Exploiting a vulnerable Minifilter Driver to create a process killer

Researcher demonstrated how to exploit a signed Minifilter Driver in a BYOVD attack to terminate a specific process from the kernel. Exploiting a signed Minifilter Driver that can be used to used the BYOVD attack technique to a program able to terminate a specific process from the kernel. Exploiting a vulnerable Minifilter Driver to create […]

Pierluigi Paganini April 24, 2023
AuKill tool uses BYOVD attack to disable EDR software

Ransomware operators use the AuKill tool to disable EDR software through Bring Your Own Vulnerable Driver (BYOVD) attack. Sophos researchers reported that threat actors are using a previously undocumented defense evasion tool, dubbed AuKill, to disable endpoint detection and response (EDR) software. The tool relies on the Bring Your Own Vulnerable Driver (BYOVD) technique to disable the […]

Pierluigi Paganini October 08, 2022
BlackByte Ransomware abuses vulnerable driver to bypass security solutions

The BlackByte ransomware operators are leveraging a flaw in a legitimate Windows driver to bypass security solutions. Researchers from Sophos warn that BlackByte ransomware operators are using a bring your own vulnerable driver (BYOVD) attack to bypass security products. In BYOVD attacks, threat actors abuse vulnerabilities in legitimate, signed drivers, on which security products rely, […]