The China-linked Mustang Panda APT has been using a kernel-mode rootkit in attacks leading to ToneShell backdoor deployments.

A new sample of the ToneShell backdoor, typically seen in Chinese cyberespionage campaigns, has been delivered through a kernel-mode loader in attacks against government organizations.

The operating system mode. Processors operate either in kernel mode or "user mode." Also called "supervisor mode," the kernel mode enables the OS (kernel) to execute "privileged instructions," which ...

Following the massive Windows outage in July caused by a defective CrowdStrike update, Microsoft is working on a way to allow security products to ‘run in user mode just as apps do,’ Microsoft’s David ...