Remove OSX.Calisto Virus From Mac OS X

Delete OSX.Calisto Virus Completely From Mac

OSX.Calisto is another new harmful computer virus. It is basically a Trojan virus. This perilous threat can intrude your computer without permission and lock your files. It can corrupt your system files and data. It is a very lethal computer infection that can cause serious damage to your PC. Is is very important to remove OSX.Calisto virus completely from your system.

OSX.Calisto

About OSX.Calisto Virus

OSX.Calisto is a popular malware infection that has infected several computing machines world wide. It mostly targeted Mac OS based machines. It’s a kind of vicious PC threat which take advantage users personal data in order to earn illegal money. It infect your system and causes several very critical issues. This notorious Trojan horse virus will make your system very slow and unresponsive. Due to presence of OSX.Calisto virus users are likely to experience various critical issues such as data loss, hard drive corruption, corruption in important application and many more. It will secretely download various other harmful threats in your Mac and makes your system vulnerable for severe damage. What  more, OSX.Calisto virus will also steal and transfer your confidential information to the hackers. It uses data encryption mechanism and locks down every single data file found on your hard drive. It not only makes your file inaccessible but also make your PC useless in just no time. OSX.Calisto virus is the scariest malware infection which contributes severe damage on infected machine and leaves no other option for you but to pay huge amount of money.

How OSX.Calisto Works

After encryption phase, OSX.Calisto virus then threaten the users with a terrible ransom note. The ransom note shown on your computer screen will instruct you how and what to do. It ask you pay the ransom money in given time. Additionally, it also warns the users that if you don’t pay the money then it will delete all your files permanently and hence you will never be able to access your files again.

Download OSX.Calisto Removal Tool

 

Malicious Doings of OSX.Calisto Virus

OSX.Calisto is a severe computer virus that can do major harm to your system. Once getting the access of your unharmed PC, it will start doing its malicious activities. Some of the most common mischievous activities OSX.Calisto virus start into your system

  1. Targets All Windows PC : This dubious computer virus can infect all versions of Mac OS machines.
  2. Malicious code injection : This perilous threat can corrupt your registry files and inject its malicious codes to the registry files for getting automatically started on your machine without your permission.
  3. Browser Redirection : OSX.Calisto virus can also infect your working web browser and causes unwanted web redirection. This nasty threat can also bring other noxious malware on your PC.
  4. Data Corruption : OSX.Calisto virus is a lethal PC threat that harm your entire system data. It can corrupt your files and programs. It can also cause black screen of death on your computer.
  5. Disable Security Programs : This nasty PC infection can also block your anti-virus and Firewall program to make its self safe in to your machine for longer time.
  6. Gather sensitive Data : It can also gather your secret and confidential information by using keylogger and tracking your browsing habits. It can also risk your privacy by sharing your personal information with hackers.
  7. Remote Access (Backdoor) : OSX.Calisto is such a harmful virus that can allow remote hackers to remotely access your system. It can make your system more vulnerable and expose your privacy.

Possibilities to Remove OSX.Calisto Virus

Its certainly possible to remove OSX.Calisto virus from your PC, however its not going to be an easy task at all. When it comes to remove this particular malware infection users should know that there are two possible options to get rid of OSX.Calisto virus from Windows PC. Well, both possibility to remove this malicious threat completely from your system is been described bellow, take a look.


How to Remove OSX.Calisto From Your PC


Option A : Easily Remove OSX.Calisto Automatically With SpyHunter (Recommended)

  • Remove From Mac OS X
  • Remove From Windows PC

Option B : Remove OSX.Calisto Manually From Your PC


Remove OSX.Calisto Virus From Mac OS X

Well, if you want to remove OSX.Calisto virus completely and safely from your  Mac then you should take help of the best and trusted Mac Anti-malware MacBooster. It is capable to detect and remove all other threats from your Mac Machine. It is a highly advanced and powerful and user friendly Mac optimization tool designed to protect Mac from viruses and optimize for best performance. It is an all in one program that includes Malware Removal, Disk Defragment, Privacy protector, Startup Optimization, App Uninstaller, Memory Cleaning, Duplicate Finder, Junk File Cleanup and many more. By using MacBooster, you can safely remove OSX.Calisto virus completely from your system in just few easy steps.

Steps To Remove OSX.Calisto Virus

Step 1 – Click below button to download MacBooster.

Step 2 – Install MacBooster program on your Mac Machine.

Step 3 – Click on Scan button to scan your Mac.

Step 4 – Click on Fix button to fix all problem and viruses.

Option A : Automatically Remove OSX.Calisto Using SpyHunter

The best and the most easy way to get rid of this nasty OSX.Calisto virus is to use SpyHunter Malware Scanner program. It is an effective and powerful malware removal tool that can easily delete any kind of harmful computer infection. This advanced and ultimate security software is able to ruin all kind of latest threats and malware. It can scan your system deeply to find out all possible and potential viruses.

Why SpyHunter?

SpyHunter is the best and powerful anti-spyware application that give real time protection to your computer. It is designed to assist you to remove all types on threats in few clicks. It is an optimum security suite which is configured to give best protection to your system with very less effort. All you have to do is to download and install this application on your system. Just start a scan of your PC and rest will be done by this program. SpyHunter is able to detect and remove all kind of rootkits, spyware, malware, threats, viruses, adware, browser hijackers, worms, Trojam, ransomware and many more.

User Guide :- Parts to Use SpyHunter To Remove OSX.Calisto

Step 1 – Download the SpyHunter malware scanner on your PC and run the installer.

Step 2 – Click on Scan Computer Now to start a new scan of your system.

Step 3 – SpyHunter will detect all malicious threats on your machine.

Step 4 – Click on “Fix Threats Now” button to remove all threats and malware.

Option B : Remove OSX.Calisto Manually From Your PC

Risk Involved With Manual Removal Process

Well, manual removal option is good but only for computer geeks. Well, if you are not much technically sound then manual methods can proves quite risky for you as it is quite lengthy and complicated process. It has been seen that even minor mistake while using manual steps result in very critical consequences for users. If manual method goes wrong then users can lose their important data and it can even make your system completely useless instead of removing OSX.Calisto virus.

Part 1 :- Boot Your PC in Safe Mode

  • Restart your Windows computer to open boot menu.

  • Keep pressing F8 button until Windows Advanced Option appears on your system screen.

  • Now Select Safe Mode With Networking Option using arrow key and press Enter.

Part 2 :- Remove OSX.Calisto From Browsers

Remove Malicious Extensions

  • Open Google Chrome and click on gear icon (⋮).
  • From the drop down list select Tools
  • Now click on Extensions option.
  • From the List of all extensions select OSX.Calisto and then click the Trash icon to remove this malicious extension completely from your Chrome browser.

Reset Browser Settings

  • Click on gear (☰) icon to open browser menu.
  • Select Settings option from browser menu window.
  • Type Reset in the search box.
  • Now go to the end of the page and click Reset Settings button.

Remove Malicious Extensions

  • Open Firefox click on (☰) icon  to open browser menu.
  • Click on the Add-Ons option.
  • Go to Extensions option from left panel. Select and remove all malicious extensions related with OSX.Calisto.

Reset Browser Settings

  • From upper right corner of browser click (☰) icon
  • From browser menu click on Help option.
  • Select Troubleshooting Information” option.
  • Hit Refresh Firefox button and confirm the action if asked.

Since, Microsoft Edge browser does not have extensions option hence you should better reset your browser settings in order to remove OSX.Calisto from your web browser completely.

Reset default search engine and homepage

  • From top right corner of your Edge browser Choose More (…) and Go to Settings.

  • Click on View Advanced Settings option.

  • Here, hit <Add New>  to Add a search provider.

  • Enter the desired Search Engine and Add as default to reset your browser search engine.

Remove Extension From Reset Internet Explorer

  • Open browser click Tools menu.
  • Click Manage Add-ons option from drop down list.
    • Go to Toolbar and Extensions from left panel and select undesired extensions.
  • Click disable tab to delete all malicious extension including OSX.Calisto.

Reset Internet Explorer Setting

  • Open Internet Explorer click on Tools menu  select Internet option from drop down list.
  • Click on Advanced tab to view advanced browser settings.
  • Now hit the Reset button.
  • Check outDelete personal settings check box and click on Reset button.

Part 3 :- Kill OSX.Calisto Related Process Via Windows Task Manger.

  • Press Ctrl+Alt+Del button cumulatively to open Windows Task Manager.

  • Now click on Process tab to see all running process in your PC.

  • Select all malicious process related with OSX.Calisto and click End Process option.

Part 4 :- Uninstall OSX.Calisto From Control Panel

  • Press the Start button and select Control Panel from Start Menu.

  • Click on Add or Remove Progam option.

  • Select all malicious application related with OSX.Calisto.

  • Go to Start Menu and select Control Panel option.

  • Go to Programs section and choose Uninstall a program option.

  • Here, from the list of all programs select OSX.Calisto and then click Uninstall tab.

  • Turn the cursor to lower-left corner of your computer screen and click Start button.

  • Now search for Control Panel in the search box and then click Control Panel.

  • Find out all application related with OSX.Calisto and hit Uninstall tab.

  • Go to Start Menu and click on settings button.

  • Now select System option.

  • Click Programs and Feature option in Control Panel window.

  • From the list of all programs select OSX.Calisto and hit Uninstall tab.

Part 5 :- Remove OSX.Calisto From Registry Editor

  • Press Windows + R button together on your keyboard.

  • Type regedit and click on OK button to open Registry Editor.

  • Find and delete all malicious registry entries created by OSX.Calisto virus.

Registry Keys Created by OSX.Calisto

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe “Debugger” = ‘svchost.exe’

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe “Debugger” = ‘svchost.exe’

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\OSX.Calisto

HKEY_LOCAL_MACHINE\SOFTWARE\

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “WarnOnHTTPSToHTTPRedirect” = ’0′

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings “WarnOnHTTPSToHTTPRedirect” = ’0′

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore “DisableSR ” = ’1′

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe “Debugger” = ‘svchost.exe’

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msascui.exe “Debugger” = ‘svchost.exe’

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run “3948550101?

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “xas”

HKEY_CURRENT_USER\Software\OSX.Calisto

Be very careful while deleting registry keys as erasing a wrong registry can simply mess up your entire computing machine. It will make things even more devastating for you. If you are not sure then use Automatic method to delete OSX.Calisto completely from your PC.

Tips For Preventing OSX.Calisto And Other Malware In Future

Once you remove this infection completely from your PC, you must beware of these kind of attacks. As it is said that prevention is better than cure, so you are advised to avoid such type of malware intrusion in future. Here are some tips given below that can help you to stay safe online.

  •  Never download free software or updates from untrusted websites.
  •  Do not click on misleading and fake advertisement.
  •  Try to avoid visiting malicious or pornographic websites.
  •  Always keep your system and program updated.
  •  Download update only from authentic and official websites.
  •  Always use a powerful anti-virus and malware removal program.
  •  Regularly Scan your PC for hidden threats, malware and viruses.
  •  Always scan external USB drives before doing file transfer.
  •  Choose custom installation process to avoid bundled malware and PUP.
  •  Do not open spam emails from unknown sender that carry any attachments.
  •  Scan all the spam email attachment before opening it.

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