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Remove Cryptolocker.AB Ransomware Completely

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Cryptolocker.AB is a Ransomware Trojan horse of the Cryptolocker family. It searches for files with many different extensions, encrypts them with a “.crinf” extension, then asks for a huge ransom for decryption. It can delete Shadow Volume Copies, disable Windows Startup Repair, and end important system processes.

NameCryptolocker.AB Ransomware
TypeRansomware, Trojan
Short DescriptionThe Cryptolocker.AB Trojan horse locks the user’s important files and demands a payment. From the CryptoLocker Ransomware family
SymptomsFiles are locked in a ‘.crinf’ file format and a ransom message is displayed. Payment instructions are included in a file.
Distribution MethodDistribution method is not yet clear. It can be distributed through browsing unsafe sites, malicious email attachments, drive-by downloads, etc.
Detection ToolDownload Malware Removal Tool, to See If Your System Has Been Affected by Cryptolocker.AB Ransomware
User ExperienceJoin our forum to discuss the CryptoLocker.AB Ransomware.

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Cryptolocker.AB Ransomware – How Did I Get It?

There are a number of ways you could get infected with Trojans such as the Cryptolocker.AB Ransomware.

The most common distribution method is known to be through malicious email attachments and spam emails. There are even cases, where an email itself also contains malicious code and upon opening the email, the user infects its computer with it, even if he doesn’t open the attachment inside.

Around social networks and file sharing services there may be similar attachments and files containing the Cryptolocker.AB Ransomware, disguised as something else.

Another common way of getting infected with Ransomware is through exploit kits run from legitimate websites. For exploit kits to run, these websites must have been compromised, to have some sort of a security breach. Also, landing suspicious sites with malicious code on them may just as easily get you infected.

Cryptolocker.AB Ransomware – In Detail

The Cryptolocker.AB Trojan horse is also classified as Ransomware. The known file extensions which the newer variant from the Cryptolocker family seeks to encrypt are:

→.3dm .3ds .3fr .3g2 .3gp .7z .ACCDB .ach .ai .aiff .arw .asf .asx .avi .back .backup .bak .BAY .bin .blend .c .cdr .cer .cpp .cr2 .crt .crw .cs .dat .db .DBF .dcr .dds .DER .des .dit .DNG .doc .docm .DOCX .dtd .dwg .DXF .dxg .edb .eml .eps .ERF .fla .flac .flvv .gif .groups .h .hdd .hpp .html .iif .INDD .java .jpe .JPEG .jpg .jsp .kdc .key .kwm .log .lua .m .m2ts .m4p .m4v .max .mdb .mdf .MEF .mkv .mov .mp3 .mp4 .mpeg .mpg .MRW .msg .nd .ndf .nef .nk2 .nrw .nvram .oab .obj .ODB .odc .odm .ODP .ods .odt .ogg .orf .ost .P12 .p7b .P7C .pab .pas .pct .pdb .PDD .pdf .PEF .pem .pfx .php .pif .pl .png .pps .ppt .PPTM .pptx .prf .ps .PSD .pst .PTX .pwm .py .qba .qbb .qbm .qbr .qbw .qbx .qby .qcow .qcow2 .qed .R3D .raf .RAW .rm .rtf .rvt .rw2 .rwl .safe .sav .sql .SR2 .SRF .srt .srw .stm .svg .swf .tex .tga .thm .tlg .vbox .vdi .vhd .vhdx .vmdk .vmsd .vmx .vmxf .vob .wav .WB2 .wma .wmv .wpd .wps .X3F .XLK .xlr .XLS .xlsb .xlsm .xlsx .yuv

After files with any of the above extensions are found and encrypted, the Ransomware appends a “.crinf” extension, to the back of the name of each file. Afterwards, the Ransomware Trojan deletes all Windows Shadow Volume Copies and disables Windows Startup Repair, preventing restoration of any files that are backed-up in this way.

Then, the Cryptolocker.AB Trojan may end the following processes on the PC:

• msconfig.exe
• cmd.exe
• regedit.exe
• rstrui.exe
• tcpview.exe
• procexp.exe
• procmon.exe
• regmon.exe
• wireshark.exe
• LordPE.exe
• filemon.exe
• procexp64.exe

That is also very dangerous, because that disables many options for the user to do modifications via System editor programs, Startup settings, Registry rules and etc. The user may not be able to gain much information about the malicious program, let alone delete all of its files without that information.

The following remote location is being set, to which the Cryptolocker.AB Trojan connects:

→[http://]qbstdn6k7iivyki2.onion.direct/lending/bot[***]

After all these actions are set and done, while users may not even notice them, the Ransomware makes itself known. It changes the desktop wallpaper on the compromised computer and displays a message box with a ransom note and instructions on how to pay the ransom.

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The initial price is 500$, and it doubles after only 12 hours. Do NOT pay it in absolutely ANY circumstance! There is no telling if the cyber criminals will even contact you back, let alone give you any decryption key.

All of the actions performed by the Cryptolocker.AB Ransomware are very dangerous as they can allow it to stay as long as possible on your computer and lock as much files as it can. You should remove it immediately, as it may continue to encrypt more files if left on your machine!

Remove Cryptolocker.AB Ransomware Completely

To completely remove the Cryptolocker.AB Ransomware Trojan from your computer, you should have at least minimal experience in removing viruses. It is highly recommended to first to back up all of your personal files that you value, no matter if it is encrypted. Afterwards, carefully follow the instructions provided here:

1. Boot Your PC In Safe Mode to isolate and remove Cryptolocker.AB Ransomware

1. Boot Your PC Into Safe Mode

1. For Windows 7,XP and Vista. 2. For Windows 8, 8.1 and 10.

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.

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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.

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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

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While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.

Step 1: Open the Start Menu

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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.

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Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.

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Step 5: After the Advanced Options menu appears, click on Startup Settings.

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Step 6: Click on Restart.
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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 Cryptolocker.AB Ransomware with SpyHunter Anti-Malware Tool

2. Remove Cryptolocker.AB Ransomware with SpyHunter Anti-Malware Tool

1. Install SpyHunter to scan for and remove Cryptolocker.AB Ransomware.2. Scan with SpyHunter to Detect and Remove Cryptolocker.AB Ransomware.
Step 1:Click on the “Download” button to proceed to SpyHunter’s download page.

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It is highly recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter.

Step 2: Guide yourself by the download instructions provided for each browser.
Step 3: After you have installed SpyHunter, wait for it to automatically update.

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Step1: After the update process has finished, click on the ‘Scan Computer Now’ button.
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Step2: After SpyHunter has finished scanning your PC for any Cryptolocker.AB Ransomware files, click on the ‘Fix Threats’ button to remove them automatically and permanently.
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Step3: Once the intrusions on your PC have been removed, it is highly recommended to restart it.

3. Remove Cryptolocker.AB Ransomware with Malwarebytes Anti-Malware.

3. Remove Cryptolocker.AB Ransomware with Malwarebytes Anti-Malware

1. Install Malwarebytes Anti-Malware to scan for and remove Cryptolocker.AB Ransomware. 2. Scan your PC with MalwareBytes to remove all Cryptolocker.AB Ransomware associated files automatically.
Step 1: Download Malwarebytes by clicking here.
Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards.
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Step 3: After you have downloaded the setup, simply open it.
Step 4: The installer should appear. Click on the ‘Next’ button.
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Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again.
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Step 6: Review and click on ‘Next’ on the following 4 steps that will appear afterwards and after that click on the ‘Install’ button.
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Step 7: After the installation process has completed click on the ‘Finish’ button and check the ‘Launch MalwareBytes AntiMalware’ check box.
Step 1: Launch MalwareBytes if you havent launched it after install.
Step 2: Wait for the software to update and then click on the blue ‘Scan Now’ button. If it doesnt start updating automatically, click on the blue ‘Update Now’ highlighted text.
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Step 3: At this point, after clicking the ‘Scan Now’ button, the system should start scanning your PC. It may take a while but be patient – it is worth it.
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Step 4: After the scan has been complete and all of the threats have been identified, click on the ‘Remove Selected’ button to detelete them permanently.
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Step 5: Once the scan has completed, MalwareBytes will prompt you to restart your computer. It is recommended to save all your data you are working on before restarting.

4. Remove Cryptolocker.AB Ransomware with STOPZilla AntiMalware

4. Remove Cryptolocker.AB Ransomware with STOPZilla AntiMalware

1. Install STOPZilla Anti Malware to scan for and remove Cryptolocker.AB Ransomware. 2. Scan your PC with STOPZilla Anti Malware to remove all Cryptolocker.AB Ransomware associated files completely.
Step 1: Download STOPZilla by clicking here.
Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards.
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Step 3: After you have downloaded the setup, simply open it.
Step 4: The installer should appear. Click on the ‘Next’ button.
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Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again.
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Step 6: Review and click on the ‘Install’ button.
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Step 7: After the installation process has completed click on the ‘Finish’ button.
Step 1: Launch STOPZilla if you havent launched it after install.
Step 2: Wait for the software to automatically scan and then click on the ‘Repair Now’ button. If it does not scan automatically, click on the ‘Scan Now’ button.
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Step 3: After the removal of all threats and associated objects, you should Restart your PC.

5. Back up your data to secure it against infections and file encryptions by Cryptolocker.AB Ransomware in the future

5. Back up your data to secure it against attacks in the future

Security engineers recommend that you back up your files immediately, preferably on an external memory carrier in order to be able to restore them. In order to protect yourself from Cryptolocker.AB Ransomware (For Windows Users) please follow these simple steps:

1. For Windows 7 and earlier 1. For Windows 8, 8.1 and 10 1. Enabling the Windows Defense Feature (Previous Versions)

1-Click on Windows Start Menu
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2-Type Backup And Restore
3-Open it and click on Set Up Backup
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4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.
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5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.
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6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by Cryptolocker.AB Ransomware.
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1-Press Windows button + R
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2-In the window type ‘filehistory’ and press Enter
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3-A File History window will appear. Click on ‘Configure file history settings’
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4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.
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5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from Cryptolocker.AB Ransomware.

1- Press Windows button + R keys.
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2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.
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3- A System Properties windows should appear. In it choose System Protection.
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5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from Cryptolocker.AB Ransomware is on.
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Restoring a file via Windows Defense feature:
1-Right-click on the encrypted file, then choose Properties.
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2-Click on the Previous Versions tab and then mark the last version of the file.
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3-Click on Apply and Ok and the file encrypted by Cryptolocker.AB Ransomware should be restored.

NOTE! Substantial notification about the Cryptolocker.AB Ransomware threat: Manual removal of Cryptolocker.AB Ransomware requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.

After its removal, you might try recovering your files, using backups from an external device or cloud if you made such backups in the past. Another option is to try using decryptors that have worked with previous versions of the Cryptolocker Ransomware family, but know that the encryption of this version might be stronger!

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Berta Bilbao

Berta is a dedicated malware researcher, dreaming for a more secure cyber space. Her fascination with IT security began a few years ago when a malware locked her out of her own computer.

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