Backdoor.Tidserv.I!inf is one threat that uses advanced techniques to infect a computer. It requires systematic removal procedure to get rid of this Trojan.

Backdoor.Tidserv.I!inf is a generic identification for a legitimate MS Windows system driver files that have been modified by Backdoor.Tidserv. By loading the compromised files into system’s memory, the Trojan has full potential to initiate other components that are already stored on the computer.

Damage Level: Medium

Systems Affected: Windows 9x, 2000, XP, Windows Vista

When Backdoor.Tidserv.I!inf is executed, it loads itself in memory and initiate other modules. The Trojan may remain undetected with its advance rootkit techniques. It injects code to legitimate system driver in order to hide its process and activities on the computer. The primary purpose of this Trojan is to assist other components that attempts to generate revenue for the attackers. As a result, victims may suffer from browser redirects that hijacks search result page to a web site of an endorsed product. Additionally, compromised systems may receive extensive pop-up advertisements and promotional desktop wallpaper.

The Trojan commonly propagates by various ways that also applies for other identified threats. An observation illustrate that Trojan may use web sites with high traffic like blogs and forums that has open discussion feature. A response with exaggerated content is added by attacker which assert to direct victims to a malicious page containing the full story, video or supplementary substance.

Malware attacker also sees an opportunity to propagate Backdoor.Tidserv through pirated software, cracked programs and key generators. Since the network for this type of file-sharing activity is deregulated, most of these public files can conceal the Trojan.

If your antivirus program has updated database, there is a higher possibility that it can detect and prevent Backdoor.Tidserv.I!inf from infecting the computer. See image below.

Backdoor.Tidserv.I!inf detection

How to Remove Backdoor.Tidserv.I!inf

Systematic procedures to get rid of the threat are presented on this section. Make sure to scan the computer with suggested tools and scanners.

NOTE: We suggest that you PRINT or BOOKMARK this guide. There are steps that we may have to restart the computer in order to successfully remove the threat.

Optional : Scan and remove Backdoor.Tidserv.I!inf with this special tool

Remove the Rootkit Trojan that is related to Backdoor.Tidserv.I!inf

Anti-rootkit utility called TDSSKiller is a free tool from Kasperksy that neutralizes complicated malware which effectively hides its process, folders, files and registry entries.

8. Click the button to download TDSSKiller from Kaspersky's official web site. Save the file to your desktop.

Download TDSSKiller

9. Extract the contents using archiver applications.
10. Locate and run the TDSSKiller.exe file.

11. On Object to Scan, please mark Services and drivers as well as Boot Sectors.
12. Click on Start Scan to begin scanning your system. This may take a while.
13. After the scan is finished, it will reboot the computer. That should complete the rootkit disinfection process.

Step 1 : Run a scan with your antivirus program

1. Remove all media such as Memory Card, cd, dvd, and USB devices. Then, restart the computer and please do the following:

Boot in Safe Mode on Windows XP, Windows Vista, and Windows 7 system
a) Before Windows begins to load, press F8 on your keyboard.
b) It will display the Advanced Boot Options menu. Select Safe Mode.

Start computer in Safe Mode using Windows 8 and Windows 10
a) Close any running programs on your computer.
b) Get ready to Start Windows. On your keyboard, Press and Hold Shift key and then, click on Restart button.
c) It will prompt you with options, please click on Troubleshoot icon.
d) Under Troubleshoot window, select Advanced Options.
e) On next window, click on Startup Settings icon.
f) Lastly, click on Restart button on subsequent window.
g) When Windows restarts, present startup options with numbers 1 - 9. Select "Enable Safe Mode with Networking" or number 5.

Startup Options

h) Windows will now boot on Safe Mode with Networking. Proceed with virus scan as the next step.

2. Once Windows is running under Safe Mode with Networking, open your antivirus program and download the most recent update. This method ensures that your antivirus program can detect even newer variants of Backdoor.Tidserv.I!inf.

Updating your antivirus software is a one-click process. Please refer to your software manual for complete instructions.

3. Once updating is finished, run a full system scan on the affected PC. After the scan, delete all infected items. If unable to clean or delete, better place the threat in quarantine.

Step 2: Run another test with online virus scanner

Another way to remove Backdoor.Tidserv.I!inf without the need to install additional antivirus software is to perform a thorough scan with free online virus scanner. It can be found on websites of legitimate antivirus and security provider.

1. Click the button below to proceed to the list of suggested Online Virus Scanner. Choose your desired provider. You can run each scan individually, one at a time, to ensure that all threats will be removed from the computer. This may require plug-ins, add-on or Activex object, please install if you want to proceed with scan.

Online Virus Scan

2. After completing the necessary download, your system is now ready to scan and remove Backdoor.Tidserv.I!inf and other kinds of threats.
3. Select an option in which you can thoroughly scan the computer to make sure that it will find and delete entirely all infections not detected on previous scan.
4. Remove or delete all detected items.
5. When scanning is finished, you may now restart the computer in normal mode.

Alternative Removal Procedures for Backdoor.Tidserv.I!inf

Option 1 : Use Windows System Restore to return Windows to previous state

During an infection, Backdoor.Tidserv.I!inf drops various files and registry entries. The threat intentionally hides system files by setting options in the registry. With these rigid changes, the best solution is to return Windows to previous working state is through System Restore.

To verify if System Restore is active on your computer, please follow the instructions below to access this feature.

Access System Restore on Windows XP, Windows Vista, and Windows 7

a) Go to Start Menu, then under 'Run' or 'Search Program and Files' field, type rstrui.
b) Then, press Enter on the keyboard to open System Restore Settings.


Open System Restore on Windows 8

a) Hover your mouse cursor to the lower left corner of the screen and wait for the Start icon to appear.
b) Right-click on the icon and select Run from the list. This will open a Run dialog box.
c) Type rstrui on the 'Open' field and click on OK to initiate the command.


If previous restore point is saved, you may proceed with Windows System Restore. Click here to see the full procedure.

Ways to Prevent Backdoor.Tidserv.I!inf Infection

Take the following steps to protect the computer from threats. Suggested tools and security setup within installed software helps prevent the same attack on your PC.

Install an effective anti-malware program

Your first line of defense would be an effective security program that provides real-time protection. We have a list of anti-malware program that are tried and tested. It does not only scan files but also monitors your Internet traffic and is extremely active on blocking malicious communication. Click on the button below to download our recommended anti-malware program.

Get Protection Software

Always update your installed software

Software vendors constantly releases updates for programs whenever a flaw is discovered. Getting the updates makes the computer more secured and help prevents Trojan, virus, malware, and Backdoor.Tidserv.I!inf similar attacks. If in case your program is not set for instant update, it usually offered from vendor's web site, which you can download anytime.

Maximize the security potential of your Internet browser

Each browser has their own feature where in you can adjust the security settings that fit your browsing habit. We highly encourage you to maximize the setup to tighten the security of your browser.

Apply full caution when using the Internet

Internet is full of fraud, malware, and many forms of computer threats including Backdoor.Tidserv.I!inf. Implement full caution with links that you may receive from emails, social networking sites, and instant messaging programs. It might lead you to malicious sites that can cause harm to your computer. Avoid strange web sites that offers free services and software downloads.

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