What is OSX/MacDefender.AA?
OSX/MacDefender.AA is severe cyber threat that has been detected as Potentially Unwanted Program. Please note that this PUP often comes bundled with other software. So you should be careful when you attempt to download and install software to your computer.
OSX/MacDefender.AA has ability to mess up your computer and even cause other problems. Once infiltrated, it will generate some ads, redirects and browser hijackers to your computer. As a result, you will notice a lot of pop-up ads or advertising banners on the site that you visit. Apart from that, suspected website will take over your browser default home page and search engine and unwanted web toolbars and extensions will be added to your internet browsers without your permission, which can be very dangerous because they will keep track of your browsing data and collect your sensitive information.
In short, once you notice this PUP in your computer, you should take immediate actions to solve it in case of the further troubles.
Video Guide: How to remove trojan virus, malware, spyware
Behaviors of OSX/MacDefender.AA
Once infected with OSX/MacDefender.AA, it may perform a lot of spiteful activities in the background. Here are some symptoms you should pay attention to:
It spreads additional parasites on your computer without consent.
It alters your essential system settings and other important host files randomly.
It hijacks and redirects your web browsers to unknown websites.
It degrades your PC performance and speed considerably.
It runs many processes in the background to make your PC sluggish.
It floods your screen with a bunch of pop-ups, ads and fake alerts.
It violates your system and privacy to collect your valuable information for illegal purposes.
How Can You Get Infected With OSX/MacDefender.AA?
OSX/MacDefender.AA can intrude into your computer via several different means. In general, it can attach to unknown link, malicious websites, suspicious pop-up ads, free downloads, spam emails, etc. When you access to these possible carries, the Trojan can sneak into your computer without your permission and knowledge. Therefore, you should not click on suspicious links/pop-ups and keep yourself away from unsafe sites. When you receive spam emails, you should never open the attachments and delete the emails instantly. Please be aware that freeware/shareware are often bundled with computer threats, so if you really need to install a free program on your computer, you should read the Terms & Agreements properly to check whether there is any additional programs that could be harmful.
How to Remove OSX/MacDefender.AA From Your PC?
OSX/MacDefender.AA is a hazardous Trojan that will damage your computer system, violate your privacy and cause many other problems. Once it is detected on your computer, you have to remove it as soon as possible. You can follow the instructions below to get rid of this threat.
Method 1: Automatically Remove OSX/MacDefender.AA by Using SpyHunter.
Method 2: Manually Remove OSX/MacDefender.AA by Following the Steps Below.
Method 3: Use Windows System Restore.
METHOD 1: AUTOMATICALLY REMOVE OSX/MacDefender.AA BY USING SPYHUNTER.
SpyHunter is a professional and powerful malware removal tool, which is able to detect and delete various kinds of threat from your computer without damage. It can deeply scan your whole system and remove all the detected threats automatically within just a few minutes. Please follow the steps below to install in on your PC and use it to remove the threat.
Step 1: Click the button below to download SpyHunter on your computer.
Step 2: Right click on the icon of SpyHunter and select “run” from the menu. Click on the run button if the system prompts a window asking whether you want to run the program or not.
Step 3: Tick I accept the license agreement and then click Next. Then SpyHunter will be installed on your computer automatically.
Step 4: Click Finish when you see the below window.
Step 5: After you finish the installation process, run the Spyhunter tool and click the “Malware Scan” button to perform a full scan of your computer to find out the threat.
Step 6: When the scan accomplishes, select all the detected malicious files and then click the Remove button on the right side to clean up all the detected threats. Reboot your computer to apply all changes.
METHOD 2: MANUALLY REMOVE OSX/MacDefender.AA BY FOLLOWING THE STEPS BELOW.
The Trojan should be deleted from your PC as soon as detected. It can damage your computer terribly and violates your privacy if you don’t get rid of it promptly. Follow the manual removal instructions to remove it if you have certain skills of the computer. It is important to back up your computer before any file changes.
Step one: Terminate the processes of the Trojan in Windows Task Manager.
1) Right-click on the taskbar (or press CTRL+SHIFT+ESC keys) to open Windows Task Manager.
2) Click on the Processes tab, scroll down and find out its running processes of the Trojan, and then click on “End Process” button to terminate the selected processes.
Step two: Remove the registry entries of the Trojan from Registry Editor.
1) Press Windows + R keys and input regedit into the Run box, and then click OK to start Registry Editor.
2) When Registry Editor opens, search for and remove all the registry entries of the Trojan. Back up your registry in order to instantly restore your information if you operate mistakenly.
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\[RANDOM CHARACTERS].exe
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run ‘Random’
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “CertificateRevocation” =Random
Step three: Delete show hidden files and folders of the Trojan.
1) Launch Control Panel from Start menu and click on Folder Options.
2) Under the View tab, check Show hidden files and folders and non-check Hide protected operation system files (Recommended). Then click on OK.
3) Delete all the files associated with the Trojan from your computer as follows:
%AllUsersProfile%\random.exe
%Temp%\random.exe
%AllUsersProfile%\Application Data\.dll
Step four: Please restart your computer normally to ensure all changes take effect as soon as you finish all the steps above.
Method 3: Use Windows System Restore.
if you have been infected by OSX/MacDefender.AA you migt be required to restore yoru computer to a previous saved state. During an infection, OSX/MacDefender.AA drops various files and registry entries. The threat intentionally hides system files by setting options in the registry and might install a rootkit. With these changes, the best solution is to return Windows to previous working state is through System Restore. Even if your standard AV has removed the infection it might be the safest aleternative. To verify if System Restore is active on your computer, please follow the instructions below to access this feature.
Windows XP, Windows Vista, and Windows 7
Go to Start Menu, then under ‘Run’ or ‘Search Program and Files’ field, type rstrui.
Then, press Enter on the keyboard to open System Restore Settings.
Windows 8 and Windows 10
Hover your mouse cursor to the lower left corner of the screen and wait for the Start icon to appear.
Right-click on the icon and select Run from the list. This will open a Run dialog box.
Type rstrui on the ‘Open’ field and click on OK to initiate the command.
Next,
1.Continue on the steps and choose a desired restore point. All saved restore points are listed with corresponding date, time and description. Please click and read ‘How do I choose a restore point?’ for additional guide. system-restore-7
Typically, only the most recent restore points are shown.
If prompted to Confirm your restore point, please click on Finish to begin the process.
Note, System Restore will not bring back lost personal files such as documents, images and videos. System Restore specific purpose is to bring back previous configuration and change the system state of Windows.
Video Show: Restoring your computer with Windows 7
Conclusion
At all events, victims are advised to get rid of OSX/MacDefender.AA virus form the affected machine as quick as they can. All the related files and registry related to this threat must be removed from the infected computer for good. Owing to the dangerousness and unpredictability of the manual removal, it is recommended to get rid of this Trojan horse by using an effective removal tool to seal with it. No mater which removal method you tempt to choose, do remove it in time.
Attention: You are not suggested to remove the Trojan by manual, even though experienced computer users would rather user professional removal tool to totally uninstall OSX/MacDefender.AA, that’s because any mistakes during the processes will lead to irreparable system damage for computer. To keep PC clean and your privacy safe, you had better download SpyHunter on your computer and start it to automatically fulfill the removal.