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How to remove Trojans on your PC










A trojan is somehow different from other viruses. Instead of infecting files on your computer with malicious code, a Trojan is a separate file, usually intended as a harmless application until it opens. Symptoms vary, depending on its purpose. It can hijack your web browser, or slow down your computer because it runs in the background. Whenever possible, use reliable and updated anti-virus software to remove a Trojan. Trying to manually delete it should be used only as a last resort . Some Trojans can interfere with your Internet connection, preventing download or update anti-virus software.



Instructions

Deleting a trojan virus



1.Disconnect the computer from the internet and all other computers on your home network or WiFi connection as soon as you determine that your computer has been infected with a Trojan virus. Based on this Trojan may attempt to access your personal information or may try to infiltrate other computers on your network.


2.Research the particular Trojan virus using another computer if possible to determine whether or not an immediate threat to personal information on your computer such as passwords and bank account records. The new virus information can be found in more reliable anti- virus websites, such as, for example, McAfee and Symantec (link in Resources). If the Trojan is an immediate threat, read the section on manual removal of Trojan. many Trojans are not high risk. safely if it determines can connect your computer to the Internet to remove the Trojan, proceed to Step 3.


3.Log in as administrator on the computer. Click the Windows Start button and type "Windows Update" in the search text field. Click "Windows Update" in the search results, then click " Check for updates. " Follow the onscreen instructions to update your software.

4.Open a new browser window and go to the website of Microsoft Security Essentials (see link in Resources.) Click the "Download" button to download the software. Click "Run" in the dialog box to automatically install the program once it has downloaded. Read the software license terms and click "I agree".


5.Click the button "OK" to confirm the program you are using a legal copy of Windows, click "Install". Enable the "Scan My PC for threats after getting the latest updates," then click "Finish".


6.
Wait for the program to update and begin scanning your computer. This can take an hour or more depending on the number of files on your computer. A progress bar shows the status of the scan. When a virus is detected, the icon the Monitor tab turns red with a white "X" and a red "clean computer" button will appear. You can click on "show details" to see the virus in a popup window.


7.Click the "clean team" in the main window to remove Trojan virus. monitors the icon turns red to green with a white check mark.


8.
Click the Microsoft Security Essentials icon in the lower right corner of the screen to launch the program at any time to scan your computer. To update the software, click "Update" tab. Click the "Update" button if is asked to update the program database of known viruses.


9.Manual removal of a trojan virus


10.Try to remove a trojan virus with a program of anti-virus software before removing it manually. If this is not possible, the research as you can about the particular Trojan through a reliable website, such as anti -virus software on your home page, and using a different computer, as well as infected. Take note of the names of files, registry entries, and Dynamic Link Library (DLL) files associated with the Trojan.


11,Stop the Trojan run through Windows Task Manager. Start Task Manager by pressing "Ctrl + Shift + Esc" on the keyboard. Click the "Processes" tab and click "Show processes from all users. " Click each process related to the Trojan and click "End Process." Close the Task Manager.


12.Open the Registry Editor by clicking the Windows Start button and type "regedit" in the search text field. Click "regedit.exe" in the search results. use the "Search" to search for entries related registration Trojan, based on research you've done. Right-click each entry and select "Delete." Close the Registry Editor.


13.Deauthorize DLL files associated with Trojan virus Windows using the command prompt. Open the command prompt by clicking the Windows Start button and type "cmd" in the search field. Click "cmd.exe" in search results. Type "regsvr32 / u trojan.dll" in the command prompt, replacing "trojan.dll" with the name of the actual Trojan DLL. Press "Enter." Repeat this for each DLL associated with the virus.


14.Delete all files associated with the Trojan writing file names in the search field from the Windows Start button. Right click the file and click "Delete".


15.Restart the computer. install an antivirus program and perform a full scan of your computer as instructed by the program.



TipsPlease backup before attempting to delete registry entries, if you do not have a complete backup of your computer recently. Manually editing the registry can be extremely dangerous and usually should be done only by experienced users. Consider , however, that when backing up your files after your computer has been infected, you are more likely to support Trojan files too.

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