What is Malware?

 What's the difference between malware, and a virus?

If I had a dollar for every time I've been asked that I'd buy a Porsche.Next time someone asks you the same question just point them to this document:

Malware, can be harmful even while a machine is not connected to the internet. Malware can infect files stealing personal data, stealing credential, using target computer as a zombie. Some Malware is professionally written to perform a specific task. This special branch of malware known as Worm.

Virus : Computer viruses are Malicous piece of software which designed to Infect file and spread itself. Viruses usually infects executable files known as Exe. Let's see how it spreads.

Let's say virus has infected one exe file, then,
1+1=2+2=4+4=8.

Typically viruses are written in ASM (Assembly language - A low level language which directly work with machine), and infect exe files in the current directory. Virus can be coded with Batch, C and Almost any language but it gets strength when it's work with system directly.

Botnet : A Botnet is a special type of malware which is designed to use on an infected computer. It's also known as a Zombie. When a system is infected it turns into the slave of malicious attacker. She uses your system to Mine BTC, stealing Credential, performing DDOS attack, Clicking Ad, advertising etc.. infected sytems are also known as bots. Types of botnet as IRC,HTTP,P2P.

Most of the succesful botnets are written with C & C++ programming language.

Worm : As discussed, a worm is special type of malware which performs certain tasks. It can steal data, spy system, steal credential etc. The spreading of a worm is much faster than any other malware. It uses windows Exploit to spread (sasser worm), mass mailing (mydoom, love latter) etc. Worms are codded with C and Most of C++ programming language. Love latter was written with VB script.

Malware spreads through USB,EXE,RAR,LAN,Exploit,Mass mailing.


But what about Spyware?

Malware is an umbrella term that encompasses several types of harmful software. Spyware is just one type of malware, so all spyware is malware, but not all malware is spyware.

Read more : http://www.ehow.com/facts_6800011_difference-between-spyware-malware.html