Win.Trojan.Symmi can be classified as a trojan horse，created by cyber criminals with objection of computer attacking and infections spreading. Usually, this virus may get into your computer via the way of your searching on infected websites like pornographic sites, freeware downloading, or opening an infected e-mail. Once it accesses into your computer successfully, a horrible chaos may happened in your computer after. Your computer will download more and more harmful things without your permission and agreement. Of those malware downloaded and installed into your computer, some of those may also play a role as a spyware to collect your personal information from your computer.
Moreover, Win.Trojan.Symmi may also take lots of space in your computer which may directly affect the performance of your computer. Obviously, your computer turns slower and slower. For example, if you want to search some websites by using you IE or Firefox, it will take you a long time to react after you click the icon. By the way, this virus may also a threat for people who familiar with you for which I can embezzle you ID to send malicious e-mail to them, and once they accept and open it, this virus will spread into their computer. With its dangerous threats, I strongly recommend you to get rid of it as soon as possible.
