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Blackbyte Ransomware Abuses Legit Driver to Disable Security Products, Says NCC–CSIRT - The Revealer
ICT

Blackbyte Ransomware Abuses Legit Driver to Disable Security Products, Says NCC–CSIRT

The Nigerian Communications Commission’s Computer Security Incident Response Team (NCC-CSIRT) has flagged a high-impact threat to windows operating system, the blackbyte ransomware, which has the capacity to bypass protections by disabling more than 1,000 drivers used by various security solutions.

The NCC-CSIRT said the blackbyte ransomware gang, which is using a new technique that researchers called, “Bring Your Own Vulnerable Driver,” is exploiting the security issue that allowed it to disable drivers that prevent multiple Endpoint Detection and Response (EDR) and antivirus products like Avast, Sandboxie, Windows DbgHelp Library, and Comodo Internet Security, from operating normally.
Recent attacks attributed to this group involve a version of the MSI afterburner RTCore64.sys driver, which is vulnerable to a privilege escalation and code execution flaw tracked as CVE-2019-16098.

The “Bring Your Own Vulnerable Driver” (BYOVD) method is effective because the vulnerable drivers are signed with a valid certificate and run with high privileges on the system.

Two notable recent examples of BYOVD attacks include Lazarus, abusing a buggy Dell driver and unknown hackers abusing an anti-cheat driver/module for the Genshin Impact game.

The NCC-CSIRT advisory recommended that system administrators protect against blackByte’s new security bypassing trick by adding the particular MSI driver to an active blocklist, monitoring all driver installation events, and scrutinising them frequently to find any rogue injections that do not have a hardware match.
Source: The Sun

Edet Udoh

We are The Revealer, a general online news platform based in Nigeria. Our focus amongst others is to provide credible, factual, well researched and balanced news and articles for our teeming readers in business, governments, politics, engineering, science, religion, technology etc. Edet Udoh is the Managing Editor. He is an experienced media person. He has worked extensively with the Champion Newspapers, The Authority Newspapers and the Blueprint Newspaper before starting Revealer Online News platform in 2018. He can be reached with this email address: edetudoh2003@gmail.com or via these phone numbers 08061246427 and 08170080488

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