What is ACbackdoor? How to remove ACbackdoor Trojan from your PC or Mac?
The ACbackdoor Trojan is a dangerous malware threat which is designed mainly for both Microsoft Windows and Linux hosts. It can be acquired from various sources, every attack campaign can focus on one specific tactic. What we know for sure is that the current attack campaigns focus on using distinct infection techniques depending on the target operating system.
This particular threat is known for being spread using a multitude of weaknesses. It is set against both end users and servers. After the infection has been made the ACbackdoor Trojan can download other threats, launch multiple dangerous modules and install a cryptocurrency miner which will run a sequence of performance-demanding tasks.
Threat Summary
| Name | ACbackdoor Trojan |
| Type | Malware, Trojan, Miner |
| Short Description | A dangerous malware which can launch a miner and start a Trojan module. |
| Symptoms | The victims may notice performance issues and can get infected with other malware. |
| Distribution Method | Common distribution tactics and direct web attacks. |
| Detection Tool |
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ACbackdoor Trojan — How Did I Get It
The ACbackdoor Trojan is a malware threat which is effective against both Windows and Linux computers. There is no information available about the hacking group behind it. It is very possible that they are a very experienced collective as distinct distribution campaigns are being made for the two operating system variants. According to the available information the Linux version appears to be more advanced than the Windows one.
The version for the free operating system is distributed on hacker or hacker-controlled web servers, presumably using phishing tactics. The criminals will host these sites on domain names that sound very similar to well-known companies or services. Usually this will include stolen content and self-signed security certificates that will leave a sense of safety and legitimacy in the visitors. Various elements can be fake including boxes, interactive scripts and etc.
The Windows version depends on the Fallout Exploit Kit which relies mostly on bulk sending of email messages. They are designed to appear as being sent by services or companies that the recipients might know. By including the virus ACbackdoor Trojan attached files or links the infection will start.
Apart from these techniques there may be other tactics considered:
- Virus Code Carriers — The hackers can embed the necessary code in both documents an executable files. The documents can be of all popular file formats. On the other hand the executables files are almost always app installers of popular software which is often downloaded by the users.
- Browser Redirects and Extensions — The computer hackers will create dangerous extensions made compatible with the most popular web browsers that once installed will show the malware pages. On the other hand redirect pages will include various scripts that will deliver the virus code.
ACbackdoor Trojan — Capabilities
When the ACbackdoor Trojan is installed and run on the affected device it will start a sequence of dangerous components. The exact number and type of modules depend on the local system conditions or specific hacker instructions. One of the first modules is the information gathering one which is responsible for the collection of valuable system data — details about the hardware parts, preferences and operating system conditions.
Depending on the operating system it will use different mechanisms which will cause boot options changes that will start the virus when the computer is started. This can be done by modifying the initrd scripts found within the init system on Linux and the Windows Registry for Microsoft Windows.
Future versions of this Trojan can include an expanded functionality which can block access to the recovery boot options. This means that the users will not be able to follow some manual user recovery instructions and will need to use a quality anti-spyware solution that will be capable to fully restore the computer.
What’s important about this virus sample is that it will also initiate a security protection module by masking itself as a common Windows service, part of the Windows Defender protective suite on Microsoft’s operating system. This is done by manipulating the system into thinking that the malware files are part of this system. On Linux it will mask itself as an Update Notifier.
As it is a Trojan by classification it can be programmed to conduct common actions that are often launched by this type of malware:
- Surveillance — The main engine will establish a secure and persistent connection to a hacker-controlled server allowing the hackers to access and monitor the user interactions of the victims.
- Code Execution — The ACbackdoor Trojan can be programmed to start certain commands or download and run other malware. Popular examples are cryptocurrency miners and ransomware.
- Automatic Updates — Some of the malware variants can automatically poll the server and update themselves with a newer release.
How to Remove ACbackdoor Trojan
In order to fully remove ACbackdoor from your computer system, we recommend that you follow the removal instructions underneath this article. If the first two manual removal steps do not seem to work and you still see ACbackdoor or programs, related to it, we suggest what most security experts advise – to download and run a scan of your computer with a reputable anti-malware program. Downloading this software will not only save you some time, but will remove all of ACbackdoor files and programs related to it and will protect your computer against such intrusive apps and malware in the future.
Martin Beltov
Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.
Follow Me:
- Guide 1: How to Remove ACbackdoor Trojan from Windows.
- Guide 2: Get rid of ACbackdoor Trojan from Mac OS X.
- Guide 3: Remove ACbackdoor Trojan from Google Chrome.
- Guide 4: Erase ACbackdoor Trojan from Mozilla Firefox.
- Guide 5: Uninstall ACbackdoor Trojan from Microsoft Edge.
- Guide 6: Remove ACbackdoor Trojan from Safari.
- Guide 7: Eliminate ACbackdoor Trojan from Internet Explorer.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
How to Remove ACbackdoor Trojan from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove ACbackdoor Trojan
Step 2: Uninstall ACbackdoor Trojan and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Follow the instructions above and you will successfully uninstall most programs.
Step 3: Clean any registries, created by ACbackdoor Trojan 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 ACbackdoor Trojan 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.
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Get rid of ACbackdoor Trojan from Mac OS X.
Step 1: Uninstall ACbackdoor Trojan and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove ACbackdoor Trojan via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove ACbackdoor Trojan files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as ACbackdoor Trojan, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove ACbackdoor Trojan from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Erase ACbackdoor Trojan from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Uninstall ACbackdoor Trojan from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Remove ACbackdoor Trojan from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the ACbackdoor Trojan will be removed.
Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer
Eliminate ACbackdoor Trojan from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.
