Backdoor.SDBot (Free Instructions) - Removal Guide

Backdoor.SDBot Removal Guide

What is Backdoor.SDBot?

Backdoor.SDBot is the trojan that allows attackers to control the targeted computer by opening the backdoor

Backdoor.SDBot malwareBackdoor.SDBot is the virus that can perform various malicious processes on the system to gain access to administration rights and change essential settings of the network.

Backdoor.SDBot is the malware that belongs to a backdoor trojan family because of the particular virus functions. This virus connects to an internet server and receives commands from the developer, so malware actions on the system may vary from downloading and running files, monitoring activity, collecting information to manipulating processes and services directly on the machine or capturing Webcam shoots.[1]

This is a trojan that mostly targets Windows operating systems and attempts to gain access to the computer with administrative rights to make necessary changes. Backdoor.SDBot malware can delete the initial source program, so the detection and removal become even more difficult besides the silent infiltration. The damage can already be done in the system when you notice the questionable activity regarding the existence of the malware, so the thorough system cleaning is needed.

Name Backdoor.SDBot
Type Trojan
Category Malware
Mostly affects Windows OS supporting devices
Symptoms The system displays errors, OS shuts down unsuspectedly, the computer runs slow due to high usage of resources caused by suspicious processes and files
Purpose Gain admin access to the machine and make system changes, infect malware or steal data
Possible functions Monitoring activity, tracking data, capturing screens or webcam shots, uploading files or programs, disabling functions, downloading malware
Distribution Spam email attachments, software cracks, fake applications
Removal Get a reputable anti-malware and remove Backdoor.SDBot fro the machine completely

Backdoor.SDBot virus belongs to one of the most dangerous strains of malware – trojans. This threat disguised as a process in Task Manager and this way runs uninterrupted for a long time. Also, such malware can pose as a legitimate application and damage the computer without any permission or users' knowledge.

The most unique and dangerous feature of such infection is that Backdoor.SDBot trojan runs in the background long before you get to discover that a rogue program affects your machine. There are not many noticeable symptoms this threat cause on the infected PC, but a few indicators that virus runs on the machine can include:

  • computer displays errors;
  • OS shuts down after displaying the dialog box with System Shutdown alert;
  • computer restarts without any interaction;
  • the system runs slow;
  • Task Manager displays questionable processes running in the background;
  • you find duplicates of essential files like executables;
  • other programs appear running on the machine that you haven't installed yourself.

Other Backdoor.SDBot related issues may include the remote access on your device. Since this is a backdoor malware, it is more likely to focus on such processes.[2] Many huge data breaches or leaks of information from databases and systems of companies and people include the remote access tools or the usage of security flaws.[3]

Backdoor.SDBot exploits system vulnerabilities of the Windows devices and networks and spreads around by remotely accessing the targeted PC. Then, the malware uses commands to copy and run itself on the device. Once infiltrated, malware can terminate security functions, software, system features to keep being undetected.

Backdoor.SDBot virusBackdoor.SDBot is the malware that opens backdoors for malicious actors so that other procedures can be launched on the affected PC.

Backdoor.SDBot can use the same vulnerabilities and open backdoors for other malware creators to spread infections further. This is why removing the trojan completely from the machine is difficult – the virus can run its processes freely when associated files remain on the computer. You need to delete all of those applications and files to terminate this trojan properly.

You can remove Backdoor.SDBot and associated files by scanning the system with anti-malware tools fully. Programs like this can detect and remove cyber threats found on the computer. A thorough check on the device allows seeing results and eliminating all indicated programs.

Choose tools for automatic Backdoor.SDBot removal wisely and from the official sources and providers. This way you can be sure that software cracks or rogue applications are not installing additional programs or even more severe malware. We offer FortectIntego for additional system check and cleaning that involves fixing the virus damage.

Besides all those noticeable changes, Backdoor.SDBot trojan adds files in the system folders and executes commands to change boot preferences and startup keys, registry entries. Associated files may include:

  • Aim95.exe
  • Explorer.exe
  • Cmd32.exe
  • Sys3f2.exe
  • service.exe
  • xmconfig.exe
  • sock32.exe.

Trojans and similar malware like Backdoor.SDBot often is designed to infect the machine with the initial payload and then spread other threats on the affected device. Such threats may be ransomware or cryptojacking malware. These are the two most dangerous cyber threats. Experts[4] note how important it is to scan the affected machine thoroughly and remove all programs to avoid additional malware installation.

Since Backdoor.SDBot disables many security functions and even programs, you could benefit from rebooting the machine in Safe Mode before scanning with the AV tool. Also, Windows devices have a System Restore feature that helps when fighting malware.

Trojans and other malware get installed automatically when macros get triggered

Spam email campaigns involve various social engineering tactics and other deceptive techniques that spread infected files and hyperlinks, documents, automatic downloads. Once the suspicious email is received, you should delete it immediately and avoid any clicking on the contents.

When the document is downloaded and opened on the computer, malicious macros get triggered and launches malware script or even installs malware directly. This is the process that does not require your permission and you cannot see the initial downloading of the program.

However, these installations can be avoided if you pay close attention to such emails and other processes involving content form the internet. Delete suspicious emails you were not expecting to receive. Also, keeping antivirus tool and running a full system scan occasionally can improve the performance of your machine significantly and such tools can block malware before it enters the PC.

Backdoor.SDBot virus elimination should include anti-malware program and a full system scan

For the proper Backdoor.SDBot removal, you should get a reliable anti-malware tool or a program that can check the machine for cyber intruders and fix additional issues with the computer. We can recommend FortectIntego, SpyHunter 5Combo Cleaner, or Malwarebytes as reliable programs designed to detect such threats.

Remember that Backdoor.SDBot virus can be associated with other malware and perform various processes besides affecting the performance and speed of your PC. The full system scan checks all the places on your machine that malware can hide its files.

When you remove Backdoor.SDBot and other dangerous trojans or malware, ransomware cryptocurrency miners, reboot the machine in Safe Mode with Networking. This way anti-malware tool can work properly and delete all indicated threats.

do it now!
Fortect Happiness
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Compatible with Microsoft Windows Compatible with macOS
What to do if failed?
If you failed to fix virus damage using Fortect Intego, submit a question to our support team and provide as much details as possible.
Fortect Intego has a free limited scanner. Fortect Intego offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Fortect, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Intego, try running Combo Cleaner.

Getting rid of Backdoor.SDBot. Follow these steps

Manual removal using Safe Mode

Enter the Safe Mode with Networking and scan the system with an AV tool for Backdoor.SDBot removal

Important! →
Manual removal guide might be too complicated for regular computer users. It requires advanced IT knowledge to be performed correctly (if vital system files are removed or damaged, it might result in full Windows compromise), and it also might take hours to complete. Therefore, we highly advise using the automatic method provided above instead.

Step 1. Access Safe Mode with Networking

Manual malware removal should be best performed in the Safe Mode environment. 

Windows 7 / Vista / XP
  1. Click Start > Shutdown > Restart > OK.
  2. When your computer becomes active, start pressing F8 button (if that does not work, try F2, F12, Del, etc. – it all depends on your motherboard model) multiple times until you see the Advanced Boot Options window.
  3. Select Safe Mode with Networking from the list. Windows 7/XP
Windows 10 / Windows 8
  1. Right-click on Start button and select Settings.
  2. Scroll down to pick Update & Security.
    Update and security
  3. On the left side of the window, pick Recovery.
  4. Now scroll down to find Advanced Startup section.
  5. Click Restart now.
  6. Select Troubleshoot. Choose an option
  7. Go to Advanced options. Advanced options
  8. Select Startup Settings. Startup settings
  9. Press Restart.
  10. Now press 5 or click 5) Enable Safe Mode with Networking. Enable safe mode

Step 2. Shut down suspicious processes

Windows Task Manager is a useful tool that shows all the processes running in the background. If malware is running a process, you need to shut it down:

  1. Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
  2. Click on More details.
    Open task manager
  3. Scroll down to Background processes section, and look for anything suspicious.
  4. Right-click and select Open file location.
    Open file location
  5. Go back to the process, right-click and pick End Task.
    End task
  6. Delete the contents of the malicious folder.

Step 3. Check program Startup

  1. Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
  2. Go to Startup tab.
  3. Right-click on the suspicious program and pick Disable.

Step 4. Delete virus files

Malware-related files can be found in various places within your computer. Here are instructions that could help you find them:

  1. Type in Disk Cleanup in Windows search and press Enter.
    Disk cleanup
  2. Select the drive you want to clean (C: is your main drive by default and is likely to be the one that has malicious files in).
  3. Scroll through the Files to delete list and select the following:

    Temporary Internet Files
    Recycle Bin
    Temporary files

  4. Pick Clean up system files.
    Delete temp files
  5. You can also look for other malicious files hidden in the following folders (type these entries in Windows Search and press Enter):


After you are finished, reboot the PC in normal mode.

Remove Backdoor.SDBot using System Restore

Try System Restore as virus termination method

  • Step 1: Reboot your computer to Safe Mode with Command Prompt
    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Backdoor.SDBot. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with FortectIntego and make sure that Backdoor.SDBot removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Backdoor.SDBot and other ransomwares, use a reputable anti-spyware, such as FortectIntego, SpyHunter 5Combo Cleaner or Malwarebytes

How to prevent from getting trojans

Access your website securely from any location

When you work on the domain, site, blog, or different project that requires constant management, content creation, or coding, you may need to connect to the server and content management service more often. The best solution for creating a tighter network could be a dedicated/fixed IP address.

If you make your IP address static and set to your device, you can connect to the CMS from any location and do not create any additional issues for the server or network manager that needs to monitor connections and activities. VPN software providers like Private Internet Access can help you with such settings and offer the option to control the online reputation and manage projects easily from any part of the world.


Recover files after data-affecting malware attacks

While much of the data can be accidentally deleted due to various reasons, malware is one of the main culprits that can cause loss of pictures, documents, videos, and other important files. More serious malware infections lead to significant data loss when your documents, system files, and images get encrypted. In particular, ransomware is is a type of malware that focuses on such functions, so your files become useless without an ability to access them.

Even though there is little to no possibility to recover after file-locking threats, some applications have features for data recovery in the system. In some cases, Data Recovery Pro can also help to recover at least some portion of your data after data-locking virus infection or general cyber infection. 


About the author
Julie Splinters
Julie Splinters - Anti-malware specialist

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