Beast is a backdoor trojan horse which steals our data and make it easily hackable.If the beast is installed in your computer , then the hackers can easily use your computer as a botnet , steal your data , catch everything you type on the keyboard , install or uninstall software , surf the web using your internet connection , delete or modify your files , download or upload files to and from your computer , watch your screen and crash your computer.When a trojan horse like Beast 2.07 or Play mp3.exe ( which is another trojan horse ) is installed , the hackers can easily hack your system.For more about trojan horse click here.