Uncategorized
6

Using Kernel Rootkits to Conceal Infected MBR

If you’ve look at any of the major bootkits such as TDL4 and Rovnix, you’ve probably noticed they employ certain self defense features to prevent removal; specifically, intercepting read/write requests to the boot sectors. While these defense mechanisms can fool some software, they may, in some cases, make infections even …

Uncategorized
15

Inline Hooking for Programmers (Part 2: Writing a Hooking Engine)

We’ll be writing a hooking engine using trampoline based hooks as explained in the previous article (we don’t handle relative instructions as they’re very rare, but we do use atomic write operations to prevent race conditions). First things first, we need to define the proxy functions which we will redirect …

Uncategorized
4

Inline Hooking for Programmers (Part 1: Introduction)

A lot of my articles have been aimed at giving a high-level insight into malware for beginners, or those unfamiliar with specific concepts. Today I’ve decided to start a new series designed to familiarize people with malware internals on a programming level. This will not be a tutorial aimed towards …

Uncategorized
3

Distributed Denial Of Service (DDoS) for Beginners

Distributed Denial Of Service, or DDoS, is an attack in which multiple devices send data to a target device (usually a server), with the hope of rendering the network connection or a system application unusable. There are many forms of DDoS attack, but almost all modern attacks are either at …