Trojan Virus Causing Internet Browser Problems?

Question

Last night I was on youtube watching the Mr Brightside Violin cover and all of a sudden my computer tells me that I have a virus. Instinctively I tried to delete it and while doing so, my computer restarted. After it restarted I tried to get on Google Chrome (that was the browser I was using while checking out the video) and it sends me a message that it's a broken link. I try to get on internet explorer and it's slower than usual and sometimes it doesn't load the web pages. I then uninstall, then reinstall Chrome. Later, my computer tells me again that I have 2 Trojan viruses on my computer. I delete one and then I restored my computer back to factory settings. My Sony Vaio came with Google Chrome, so it automatically installed it. I try to get back onto Chrome, but it still does the same thing. My internet explorer doesn't work sometimes and I have to keep exiting and reloading. I make AVG scan for any threats, but it can't find any. I can't remember the names of the viruses, but they are Trojans. How can I fix this???
Any help would be greatly appreciated. Sorry for the novel.

Answer 1

Get the following software, all free, from the links below. Get them from a clean computer onto a flash drive. Now boot your computer into safe mode (hold f8 key while booting up). Run each from safe mode. This works in most cases.



http://www.malwarebytes.org



http://www.bleepingcomputer.com/combofix/how-to-use-combofix



http://www.superantispyware.com

Answer 2

2

Answer 3

Virus Causing Internet Connection Problems

Answer 4

A program that either does what it says or does something totally different. A program that does what it says and is considered a trojan is a remote access program.Even though it is used for security purposes it can stiil be used to attack other computer.Then you have trojan downloaders which can download other malware to your system.There are even trojan password stealers for just about any program out there.Those are called psw trojans. Now a virus is totally different than a trojan.Viruses can replicate,trojans cannot.Another words a trojan cannot send itself to others in your addressbook but a virus can.

Answer 5

I would say you first of all scan your system with any good system cleaner such as Reginout to clean your system of excessive data that gives errors and cause slowdown. Also, uninstall unnecessary programs. I hope your problem will be solved. Few more steps will also help you:



1. Make Sure Your Hardware is Sufficient: Above and beyond everything you can do with software to optimize the function of your computer, making sure you have the proper hardware to support Windows is critical.



2. Clean Your Desktop: Is your Windows Desktop dotted with files? Have you noticed that your computer has been running slower and slower? Do you see the hard drive light often flashing while you wait for the computer to respond to an action? There are steps you can take to fix it. Read this article.



3. Scan Your Windows System for Errors: An operating system is a collection of files that perform different functions. It is possible, over time, that one or more of these system files has changed or become corrupted. If this happens, the speed of your system may decrease. By using a utility called “System File Checking”, it will inspect these files and correct any problem it finds.



4. Scan for Viruses, Spyware and Adware: Every Windows computer is vulnerable to viruses. Viruses are nasty little programs that cause both major and minor problems for users. Spyware and Adware are programs created by companies to find out more information about customers, so they can better market products to them. Spyware and Adware can load into computer memory and slow it down.Periodically scanning and removal of Viruses, Spyware and Adware is a great way to improve computer performance.



5. Uninstall Unused Programs: Over time, you may have accumulated programs on your computer that you do not use. When a program is installed, it creates connections between the program and the operating system. Even if you don’t use these programs, they can slow down your system. If you have the original program’s installation disk or file, removing programs will free up space on your computer and may speed up your system's performance.



6. Adjust Visual Effects for Better Performance: Windows provides a number of interesting visual effects including animated windows and fading menus. If you do not have enough operating memory (see above number 1), these effects can slow down your computer. Adjusting or reducing visual effects can make a difference.



7. Don’t Automatically Start Programs: Programs use operating memory (RAM, also called system resources). Unless you always use these programs, you can keep them from loading at Windows startup and speed both the booting of your computer and its performance. Manage startup programs using reginout.



8. Defragment Your Hard Drive: The more information and programs you have on your computer, the more it is likely that Windows has placed parts of the same file in different locations on your hard drive. It may do this for hundreds of files and programs, depending on how much space is available. Defragmenting the hard drive places all information for each file in one place. The result can be a faster computer experience.

Answer 6

In addition to running an antivirus scan with AVG, I would also suggest that you run an antispyware or antimalware scan.



If you need a free antimalware program, perhaps you should try using MalwareBytes, which can be downloaded from the link below.



http://MalwareBytes.org



If you are still unable to remove these trojans or are unable to download or install any programs, perhaps you should try booting your computer into Safe Mode with Networking by pressing F8 while your computer is booting up and then try to download and run the scans again.



Good luck and I hope I helped you!

Answer 7

It sounds like your best bet will be to run a comprehensive clean of your computer. I suggest this guide:

http://forums.majorgeeks.com/showthread.php?t=35407



When you get through that (heed the warnings about ComboFix - put that mouse out of reach so you can't mess up your computer) you should either have got rid of your problems or improved them out of sight. You can get more help or just have your logs checked when you've finished with the guide and it explains how.

Answer 8

Safe mode, "Safe Mode with Networking". Download, update, run Malwarebytes, removing what it finds and run Hitman Pro in normal Mode. If you can't do this, then use System Restore or in safe mode choose "Last Known good Configuration" from list and then run these scanners. I would also reset IE to Default in Options, Advanced, use ccleaner and restart PC...