KillerLocker Ransomware - How To Remove?


Many people are afraid of the clowns: it is one of the most common phobias found in the human nature. Now, as horror genre is getting even more attention and publications, special attention has been given to the archetype of frightening clowns. People from United States of America have spotted ghastly dressed-up figures that disguised themselves in clown make up and clothing. Now, ransomware viruses enter the game with the KillerLocker ransomware which incorporates a hideous picture of a homicidal clown and he is thirsty for your money. This variant of crypto-ransomware weasels into devices secretive, starts the encryption, contacts its founders and announces about the capture of a new victim. The payload of this virus that gets place into devices might be straightforwardly called KillerLocker.exe, but we are not disregarding the possibility for it to hide underneath a more ordinary and insignificant title to conceal its presence.

What are the main features of KillerLocker Ransomware?

The main methods for KillerLocker ransomware to spread around are going to be addressed in the further sections. Disregarding the way it infiltrated into your system, we should discuss the main objectives that it chooses to complete after its successful arrival. First of all, it modifies users’ Windows Registry keys. This small, almost unnoticeable alteration is more important than you might expect. If KillerLocker virus reaches its goal of getting launched every time you reboot your computer and remains running in the background undetected, then there is little to stop it from encrypting all of the appropriate files. At the time of our analysis which is in early October of 2016, this ransomware is a newly unravelled infection, silently waiting until some Internet user will stumble upon its payload. The analysis about it is not yet very detailed and suggest the main aspects.

After getting into the position of silently being one of the processes that are automatically generated as soon as your computer is ran, KillerLocker virus will not wait around and run a scan to find the files, suitable for encryption. The criteria for selection procedure might differ. On one hand, the ransomware might pay attention to the executables that were ran the most recently. However, other viruses can choose files according to their extension. In fact, as soon as the encryption with AES-256 cipher, the files are going to be appended with an extension at the end: .rip (as in RIP: rest in peace). As the encoding is concluded, KillerLocker virus can reveal its existence and demand a ransom for the encryption. This is done via the letter which is going to be left behind. As its language is in Portuguese, we might assume that mostly people from corresponding areas have to be worried about this virus.

How to Decrypt Files Encrypted by KillerLocker Ransomware?

NEVER pay the demanded sum of money. This is a trap for you to believe that KillerLocker virus will keep its word and give you the properly functioning key for decryption. Why would they bother if the only thing they need is money and the disturbance of users time and finances gives them joy in general. KillerLocker gives only 48 hours for its victims to pay the ransom. After the time passes, all of the files are going to permanently deleted. Please make copies of such encrypted data and keep it safe until the decryption key is generated by reliable IT specialists.

How is KillerLocker Ransomware Distributed?

The most common ways for the KillerLocker virus to reach Internet audiences is via email addresses. Crooks might craft letters that seem like legitimate or originating from reliable sources like friends or family. However, this might not always be the case. If you get an unexpected letter about an offer to take a trip somewhere and the email contains an attachment, then please make sure that the message does not seem fishy in any way. Please be cautious about entering the domains that are introduced to you via email and be careful while downloading attachments as well.

To eliminate this virus, please tryout Reimage, Spyhunter, Hitman or the tool that you prefer to employ for such tasks.

How to recover KillerLocker ransomware encrypted files and remove the virus

Step 1. Restore system into last known good state using system restore

1. Reboot your computer to Safe Mode with Command Prompt:

for Windows 7 / Vista/ XP
  • Start Shutdown RestartOK.
  • Press F8 key repeatedly until Advanced Boot Options window appears.
  • Choose Safe Mode with Command Prompt. Windows 7 enter safe mode

for Windows 8 / 10
  • Press Power at Windows login screen. Then press and hold Shift key and click Restart. Windows 8-10 restart to safe mode
  • Choose TroubleshootAdvanced OptionsStartup Settings and click Restart.
  • When it loads, select Enable Safe Mode with Command Prompt from the list of Startup Settings. Windows 8-10 enter safe mode

2.Restore System files and settings.

  • When Command Prompt mode loads, enter cd restore and press Enter.
  • Then enter rstrui.exe and press Enter again. CMD commands
  • Click “Next” in the windows that appeared. Restore point img1
  • Select one of the Restore Points that are available before KillerLocker ransomware has infiltrated to your system and then click “Next”. Restore point img2
  • To start System restore click “Yes”. Restore point img3

Step 2. Complete removal of KillerLocker ransomware

After restoring your system, it is recommended to scan your computer with an anti-malware program, like Reimage and remove all malicious files related to KillerLocker ransomware. You can check other tools here.

Step 3. Restore KillerLocker ransomware affected files using Shadow Volume Copies

If you do not use System Restore option on your operating system, there is a chance to use shadow copy snapshots. They store copies of your files that point of time when the system restore snapshot was created. Usually KillerLocker ransomware tries to delete all possible Shadow Volume Copies, so this methods may not work on all computers. However, it may fail to do so.

Shadow Volume Copies are only available with Windows XP Service Pack 2, Windows Vista, Windows 7, and Windows 8. There are two ways to retrieve your files via Shadow Volume Copy. You can do it using native Windows Previous Versions or via Shadow Explorer.

a) Native Windows Previous Versions

Right-click on an encrypted file and select PropertiesPrevious versions tab. Now you will see all available copies of that particular file and the time when it was stored in a Shadow Volume Copy. Choose the version of the file you want to retrieve and click Copy if you want to save it to some directory of your own, or Restore if you want to replace existing, encrypted file. If you want to see the content of file first, just click Open.

Previous version
b) Shadow Explorer

It is a program that can be found online for free. You can download either a full or a portable version of Shadow Explorer. Open the program. On the left top corner select the drive where the file you are looking for is a stored. You will see all folders on that drive. To retrieve a whole folder, right-click on it and select “Export”. Then choose where you want it to be stored.
Shadow explorer

Step 4. Use Data Recovery programs to recover KillerLocker ransomware encrypted files

There are several data recovery programs that might recover encrypted files as well. This does not work in all cases but you can try this:

  • We suggest using another PC and connect the infected hard drive as slave. It is still possible to do this on infected PC though.
  • Download Data Recovery Pro (commercial)
  • Install and scan for recently deleted files. Data Recovery Pro

Note: In many cases it is impossible to restore data files affected by modern ransomware. Thus I recommend using decent cloud backup software as precaution. We recommend checking out Carbonite, BackBlaze, CrashPlan or Mozy Home.


About the author

 - Main Editor
I have started in 2007 after wanting to be more or less independent from single security program maker. Since then, we kept working on this site to make internet better and safer place to use.
October 5, 2016 02:40, January 2, 2017 09:32

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