| Name | Backdoor:MSIL/Bladabindi.AJ |
| Type | Backdoor |
| Short Description | The backdoor is deployed to change system settings and steal sensitive information. |
| Symptoms | Various registry entries are modified. |
| Distribution Method | Not clear yet – but possibly by leveraging software vulnerabilities, unsafe browsing. |
| Detection tool | Download Malware Removal Tool, to See If Your System Has Been Affected By Backdoor:MSIL/Bladabindi.AJ |
Backdoors are quite damaging to the system and should be removed immediately. Backdoor:MSIL/Bladabindi.AJ is one of the latest backdoors reported by Microsoft. It belongs to the MSIL/Bladabindi family designed to steal sensitive data and send it to hackers. It is designed to chance various system settings and spread itself to several locations on the compromised system.
Members of the MSIL/Bladabindi malware family are reported to copy themselves to one of the following directories. It will do this with a different name. Here is a list of the locations exploited by Bladabindi backdoors:
- %TEMP%
- %APPDATA%
- %USERPROFILE%
- %ALLUSERSPROFILE%
- %windir%
What is the Payload of Backdoor:MSIL/Bladabindi.AJ?
Once it has installed itself on the system, Backdoor:MSIL/Bladabindi.AJ will copy to the following directories:
- c:\documents and settings\administrator\application data\flashplayerplugin.exe
- c:\documents and settings\administrator\start menu\programs\startup\ec75da55df7bc76b2f5430df05849464.exe
After it has places itself in these locations, the malware piece will alter several registry entries so that it runs each time the PC is booted. Here is the information provided by the researchers at Microsoft malware protection center:
→
In subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Sets value: “ec75da55df7bc76b2f5430df05849464”
With data: “”c:\documents and settings\administrator\application data\flashplayerplugin.exe” ..”
The backdoor is also capable of changing multiple system security settings without the user’s knowledge or consent. First, it will add itself to the list of applications that can access the Internet without being blocked by the system’s Firewall. To do this, Backdoor:MSIL/Bladabindi.AJ will modify the Registry by adding value to a subkey:
→
Adds value: “C:\Documents and Settings\Administrator\Application Data\FlashPlayerPlugin.exe”
With data: “c:\documents and settings\administrator\application data\flashplayerplugin.exe:*:enabled:flashplayerplugin.exe”
To subkey:HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List
As visible by the entries above, the backdoor inserts an executable – FlashPlayerPlugin.exe. Many malware pieces are known to leverage FlashPlayer vulnerabilities. That is why security experts often advise users to avoid using FlashPlayer unless it is required.
Finally, being a backdoor, Bladabindi will grant remote access to hackers so that they can use the compromised PC whenever they want. Such access is often deployed to spread malware, install keyloggers to steal sensitive data, run or stop applications, and delete files.
Backdoor:MSIL/Bladabindi.AJ Removal Options
Considering the malicious character of the Blababindi backdoor, removing it via professional software is highly recommended. However, expert users can try and remove it themselves. You can follow the removal instructions provided below.
1. Start Your PC in Safe Mode to Remove Backdoor:MSIL/Bladabindi.AJ.
For Windows XP, Vista, 7 systems:
1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
2. Select one of the two options provided below:
– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.
– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.
3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.
4. Log on to your computer using your administrator account
While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.
For Windows 8, 8.1 and 10 systems:
Step 1: Open the Start Menu
Step 2: Whilst holding down Shift button, click on Power and then click on Restart.
Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.
Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.
Step 5: After the Advanced Options menu appears, click on Startup Settings.
Step 6: Click on Restart.
Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.
2. Remove Backdoor:MSIL/Bladabindi.AJ automatically by downloading an advanced anti-malware program.
To clean your computer you should download an updated anti-malware program on a safe PC and then install it on the affected computer in offline mode. After that you should boot into safe mode and scan your computer to remove all Backdoor:MSIL/Bladabindi.AJ associated objects.
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Preparation before removing Backdoor:MSIL/Bladabindi.AJ.
Before starting the actual removal process, we recommend that you do the following preparation steps.
- Make sure you have these instructions always open and in front of your eyes.
- Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
- Be patient as this could take a while.
- Scan for Malware
- Fix Registries
- Remove Virus Files
Step 1: Scan for Backdoor:MSIL/Bladabindi.AJ with SpyHunter Anti-Malware Tool
Step 2: Clean any registries, created by Backdoor:MSIL/Bladabindi.AJ on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by Backdoor:MSIL/Bladabindi.AJ there. This can happen by following the steps underneath:
Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.Step 3: Find virus files created by Backdoor:MSIL/Bladabindi.AJ on your PC.
1.For Windows 8, 8.1 and 10.
For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC's screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be "fileextension:exe". After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navigation box to fill up in case the PC is looking for the file and hasn't found it yet.
2.For Windows XP, Vista, and 7.
For Older Windows Operating Systems
In older Windows OS's the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
Backdoor:MSIL/Bladabindi.AJ FAQ
What Does Backdoor:MSIL/Bladabindi.AJ Trojan Do?
The Backdoor:MSIL/Bladabindi.AJ Trojan is a malicious computer program designed to disrupt, damage, or gain unauthorized access to a computer system. It can be used to steal sensitive data, gain control over a system, or launch other malicious activities.
Can Trojans Steal Passwords?
Yes, Trojans, like Backdoor:MSIL/Bladabindi.AJ, can steal passwords. These malicious programs are designed to gain access to a user's computer, spy on victims and steal sensitive information such as banking details and passwords.
Can Backdoor:MSIL/Bladabindi.AJ Trojan Hide Itself?
Yes, it can. A Trojan can use various techniques to mask itself, including rootkits, encryption, and obfuscation, to hide from security scanners and evade detection.
Can a Trojan be Removed by Factory Reset?
Yes, a Trojan can be removed by factory resetting your device. This is because it will restore the device to its original state, eliminating any malicious software that may have been installed. Bear in mind that there are more sophisticated Trojans that leave backdoors and reinfect even after a factory reset.
Can Backdoor:MSIL/Bladabindi.AJ Trojan Infect WiFi?
Yes, it is possible for a Trojan to infect WiFi networks. When a user connects to the infected network, the Trojan can spread to other connected devices and can access sensitive information on the network.
Can Trojans Be Deleted?
Yes, Trojans can be deleted. This is typically done by running a powerful anti-virus or anti-malware program that is designed to detect and remove malicious files. In some cases, manual deletion of the Trojan may also be necessary.
Can Trojans Steal Files?
Yes, Trojans can steal files if they are installed on a computer. This is done by allowing the malware author or user to gain access to the computer and then steal the files stored on it.
Which Anti-Malware Can Remove Trojans?
Anti-malware programs such as SpyHunter are capable of scanning for and removing Trojans from your computer. It is important to keep your anti-malware up to date and regularly scan your system for any malicious software.
Can Trojans Infect USB?
Yes, Trojans can infect USB devices. USB Trojans typically spread through malicious files downloaded from the internet or shared via email, allowing the hacker to gain access to a user's confidential data.
About the Backdoor:MSIL/Bladabindi.AJ Research
The content we publish on SensorsTechForum.com, this Backdoor:MSIL/Bladabindi.AJ how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific trojan problem.
How did we conduct the research on Backdoor:MSIL/Bladabindi.AJ?
Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of trojans (backdoor, downloader, infostealer, ransom, etc.)
Furthermore, the research behind the Backdoor:MSIL/Bladabindi.AJ threat is backed with VirusTotal.
To better understand the threat posed by trojans, please refer to the following articles which provide knowledgeable details.