Yes, the people above did a great job of explaining.
It's not nessiarly the site itself, just that the malware you can be infected with.
The site could be compromised and an attacker could leave a redirect to an exploit kit, which will result in malware being downloaded and then run on your machine, provided that you're running a vulnerable software/plugin.
The main types if exploits be worried about are 0day exploits, meaning there is no patch available at the time to protect you. Keep your stuff updated.
There is many things that could be downloaded without you even knowing, some common forms of malware that you need to worry about are as follows
R.A.Ts - Provide the most "control" over a system. An attacker could use your computer as if they were sitting behind it. Some of the core features of ever rat is as follows, but not limited to
*See you through your webcam, if attached
*Log your keystrokes
*Show the attacker your saved passwords in browsers and other applications.
*Use your internet to send denial of service attacks
*grab a live feed of your screen, as well as control your system with a keyboard and mouse
*open web pages
*Download/Upload/view/delete files on your harddrive
*download other peoples malware from a direct link
And many more. However, the majority of these are not hard to remove since they are primarily used by skid. They typically do not come with rootkits and simply drop a file and add a reg key to run the file at startup.
Keyloggers - These are not as serious as R.A.Ts, but still malicious they
* Log keystrokes
* Get stored passwords in browsers and other applications
* periodically email logs or upload them via FTP
Botnets- These are some of the more advanced malware. They typically spread via exploit kits and are used to control mass amounts of computers. They ussually leverage rootkits to avoid detection and maintain persistence. These are used by more experienced hackers and are very dangerous and difficult to remove.
* Use your internet to send denial of service attacks
* download other malware
* mine crypto currencies
* click fraud (use your pc to generate revenue by clicking on ads)
These are not all that these do, just some common core features.
Keep your software up to date, use a good antivirus software such as Kaspersky or Bitdefender(paid) or Avast!/Avira(free) use a modern browser such as Google Chrome or Firefox, as they tend to be exploited less than Internet Explorer. I prefer Firefox because it is open source and "bugs fall shallow upon many eyes"
Edited by OpenSourcerer, 18 February 2015 - 12:33 PM.