Backdoor.Solidrat

Backdoor.Solidrat is a Trojan that will allow a remote attacker to control the infected computer. To remove this threat, follow the procedure on this page.

Backdoor.Solidrat is a computer Trojan that can create a backdoor port on infected computer. This Trojan will also steals sensitive information and sends gathered data to a remote location on a specified time. To override certain system configuration, this threat will inject a code on legitimate system process.

Damage Level: Low

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

Characteristics
When Backdoor.Solidrat is executed, it will set some files under user’s account folder. It will also modify the registry and it will add a value to automatically run the main Trojan file. See Added Registries and Files and Folders section for a complete list.

Then, the Trojan will try to connect to a specified remote location using TCP port 3085 and opens a backdoor and allows unauthorized entry. Remote attacker may now perform the following tasks:

  • Steals confidential information by recording key presses.
  • Backdoor.Solidrat will connect to a remote computer to download and execute malicious files.
  • This Trojan will steal passwords used in instant messaging applications and web browser.
  • It will search for specific files on compromised computer.
  • May function as an IRC bot to receive commands from a remote computer.

Distribution
The Trojan spreads in a way that it represents itself as a useful file on a spam email messages. Opening the attached file will initiate the Trojan and begins to infect files on the system. Although Backdoor.Solidrat is not capable to replicate, its file-infecting mechanism may contaminate files on local and network drives.

How to Remove Backdoor.Solidrat

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.

Step 1 : Run a scan with your antivirus program

1. First thing you should do is reboot the computer in Safe Mode with Networking to avoid Backdoor.Solidrat from loading at start-up.

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.Solidrat.

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. 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 Norton Power Eraser

1. Click on the button below to download Norton Power Eraser from official web site. Save it to your desktop or any location of your choice.

NPE Download

4. Once the file is downloaded, navigate its location and double-click on the icon (NPE.exe) to launch the program.
5. Norton Power Eraser will run. If it prompts for End User License Agreement, please click on Accept.
6. On NPE main window, click on Advanced. We will attempt to remove Backdoor.Solidrat components without restarting the computer.

Advance Scan

7. On next window, select System Scan and click on Scan now to perform standard scan on your computer.

Scan the System

8. NPE will proceed with the scan. It will search for Trojans, viruses, and malware like Backdoor.Solidrat. This may take some time, depending on the number of files currently stored on the computer.

9. When scan is complete. All detected risks are listed. Remove them and restart Windows if necessary.

Alternative Removal Methods for Backdoor.Solidrat

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

During an infection, Backdoor.Solidrat 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.

rstrui-win7

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.

rstrui-win8

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

Option 2 : Backdoor.Solidrat manual uninstall guide

IMPORTANT! Manual removal of Backdoor.Solidrat requires technical skills. Deleting system files and registry entries by mistake may result to total disability of Windows system. We advise you to perform a backup of registry before proceeding with this guide.

1. Kill any running process that belongs to Backdoor.Solidrat.
- Press Ctrl+Alt+Del on your keyboard.
- When Windows Task Manager appears, look for Backdoor.Solidrat files (refer to Technical Reference) and click End Process.

End Task

2. Delete all registry entries that belong to this malware.
- Press [Windows Key]+R on your keyboard.
- In the 'Open' dialog box, type regedit and press Enter. This will open registry editor.
- Find and delete registry entries as mentioned in Technical Reference section below.
- Close registry editor. Changes made will be save automatically.

Run Regedit

3. Scan the computer with antivirus program.
- Connect to Internet and open your antivirus software. Please update to obtain the latest database and necessary files.
- Restart the computer in Safe Mode.
- Just before Windows logo begins to load press F8 on your keyboard.
- On Windows Advanced Boot Options, select Safe Mode and press Enter.

4. Delete all files dropped by Backdoor.Solidrat.
- While still in Safe Mode, search and delete malicious files. Please refer to 'Technical Reference'. Make sure that you execute 'End Task' first before deleting the file. Otherwise, the system will not let you perform this action.

FAQs

Is Dangerous?

Yes, can badly affect your computer and slow down its performance and usability.

Can I Remove from my Computer?

Yes, can be removed by downloading our recommended antivirus software and scanner.

How Easy is it to Remove Virus?

Nearly all paid antivirus scanners and removal tools should help remove the virus from your computer.

Once I remove do I still need antivirus?

Yes, new viruses such as are created everyday and the only way to stay 100% protected is to use antivirus on your device.

Associated Files and Folders:Added Registry Entries:
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About Marco Mathew

Marco Mathew works as Windows Network administrator before establishing precisesecurity.com. Now, Marco is dedicating full-time to help computer users' fight viruses, malware, trojan, worms, adware, and potentially unwanted programs.

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