2014年3月24日星期一

How to Completely Remove TrojanDownloader:Win32/Upatre.G?

“My Microsoft Security Essentials detected a threat called TrojanDownloader:Win32/Upatre.G and I deleted it last night. However, the warning message about this infection still popped up this morning when I started PC. I have tried some other antivirus programs but none of them work. How can I completely get rid of TrojanDownloader:Win32/Upatre.G?”

Description of TrojanDownloader:Win32/Upatre.G

TrojanDownloader:Win32/Upatre.G is a Trojan Horse which can enter your computer without permission and carry out many actions to damage your computer system. It is able to silently download and install other programs without consent once it gets into the PC. The Trojan serves as a way for unauthorized access to gain entry into another computer. Once access is gained, the hacker can access files, watch the screen and even control the infected computer. It accesses a file from a remote computer and then installs it on your computer. This Trojan can be installed on your machine when you download any free or unauthorized resources from the Internet. Please be cautious when you browse the web and attempt to download something, for some programs or files shared on the Internet are bundled with threats like Trojan, unsafe rookits, browser hijackers or adware. If you visit some websites that have been hacked, click on some links that link to malicious websites or open strange programs or files, the Trojan can get the opportunity to invade the PC.

Once installed, the Trojan will create a file c:\documents and settings\administrator\local settings\temp\sid.exe on your PC. It should be removed as soon as possible because it may contact a remote host at fareexchange.co.uk using port 443. Then it can upload data taken from your PC or download and install other malware from the remote server to further harm the infected machine. In addition, the Trojan can receive instructions from a remote hacker and steal your important personal information. It may cause serious money losses and computer damage, so please take effective measures to remove TrojanDownloader:Win32/Upatre.G.
Follow the removal instructions below and you can get rid of the infection effectively. If you are not an advanced computer user, it is suggested that you use a professional removal tool.

TrojanDownloader:Win32/Upatre.G removal instructions:

Option 1: Step-by-step manual removal of TrojanDownloader:Win32/Upatre.G
Step1. Restart your PC in Safe Mode.
Reboot your PC and constantly tap F8 key before Windows loads. When the Windows Advanced Options menu screen appears, highlight Safe Mode with the up and down arrow keys and then press Enter.
Step2. Delete the files of the Trojan.
If the malicious files are protected and invisible, click Start, go to Control Panel and click on Folder Options, click on the View tab, check Show hidden files and folders and uncheck Hide protected operating system files (Recommended). Then click OK.

Find the following files and delete it.
c:\documents and settings\administrator\local settings\temp\sid.exe
Step3. Remove the registry entries of the Trojan.
Click Start, go to Run and type regedit in the box and then click OK. The Registry Editor will open.

In the registry editor, search for the registry entries below and delete them.
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run ‘Random’
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Random
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run\Random.exe
Note:Before modifying the system registry, please make a backup of it in case any valid registry entry which contains the system information and settings is deleted mistakenly by you. Export the registry information to a suitable place and then save it with a name that you prefer.
The backup enables you to restore the files quickly and easily. Keep in mind that this process is only suggested for those advanced computer users. If you are not sure about it, use Mighty Uninstaller to clear the Trojan automatically.
Options 2: Automated removal of TrojanDownloader:Win32/Upatre.G:
It is strongly suggested that you use Mighty Uninstaller – an excellent removal tool which is designed to eradicate any unwanted programs or files fully, to delete TrojanDownloader:Win32/Upatre.G. As has mentioned above, if you don’t know exactly which registry keys or program files to delete, it is not a good idea to manually delete the registry information of the Trojan. Otherwise, your computer may end up stopping working. To safely and rapidly wipe out the Trojan horse, you can choose a reliable third party tool to automatically delete the files and registry entries associated with the infection.
Download and install Mighty Uninstaller on your PC.
Run it and click Mighty Uninstaller or Advanced Tools to find out and delete the malicious file or process related to the Trojan.
After all the leftovers of the Trojan are deleted, exit the tool and restart your computer.
To protect your computer, it is necessary to have a top antivirus program installed. It can safeguard your PC against many cyber infections. In addition, it is also important to form a good habit to surf the Internet. Don’t run or click on those unidentified programs or links from the Internet.

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