Footprinting is the first and most convenient way that hackers use to gather information. About computer systems and the companies they belong to. The purpose of footprinting to. Services, and the aspects of its security. In order to perform a successful hack on a system, it is best to know as much as you can,. If not everything, about that system. While there is nary a company in the world that. Be used to protect it.

Enumeration is the first attack on target network; Enumeration is a process to gather the information about user names, machine names, network resources, shares and services ; Enumeration makes a fixed active connection to a system. Tools and techniques using for Enumeration.

There are of four types of password attack. Types of passive online attacks includes wire sniffing, Man in the middle attack and reply attack. A rootkit is a type of malicious. That is activated each time your systemboots. A rootkit often allows the ins.

A destructive program that masquerades as a benign application. Unlike viruses, Trojan horses do not replicate themselves but they can be just as destructive. One of the most insidious types of Trojan horse is a program that claims to rid your computer of viruses but instead introduces viruses onto your computer. Main functions of a Trojan.