What is a Rootkit?

Rootkits come in a variety of flavors, each with a unique method of hiding and attacking. Here’s a quick rundown:

1. Hardware or Firmware Rootkits

• Targets your computer’s hardware (like the BIOS) or your router.

• These rootkits are super hard to detect because they operate at such a foundational level.

2. Bootloader Rootkits

• Infects your device’s bootloader, the program that starts the operating system.

• Sneaky move? Yep: it activates before the OS even loads, making it tougher to spot.

3. Memory Rootkits

• Lives temporarily in the RAM, executing malicious tasks while your system is active.

• The good news? It disappears on reboot. But it can still cause chaos should it reload.

4. Application Rootkits

• Hijacks your apps, replacing legit files with manipulated versions.

• Example? Every time you open a program, it works as expected—but with a little extra malware magic running in the background.

5. Kernel Mode Rootkits

• The heavyweight champion of rootkits, this one operates at the kernel (the core of your OS). It can modify how your entire system functions and ensure its own longevity.

• Because it works at such a deep level, it’s incredibly dangerous.

6. Virtual Rootkits

• These create a virtual machine beneath your actual OS to intercept and control hardware-level operations. It’s like replacing the foundation of a house while you’re still living in it.