CryptInfinite Ransomware

Also Known As: CryptInfinite virus
Distribution: Low
Damage level: Severe

CryptInfinite virus removal instructions

What is CryptInfinite?

CryptInfinite is a ransomware virus that encrypts files stored on infected systems. It is distributed using various false job applications, business offers, and infected email attachments. After encrypting the files, CryptInfinite adds a .crypt, .pzdc, or .good extensions to each file. After the infected computer is restarted, CryptInfinite replaces the desktop wallpaper with an image containing a message, which states that payment of a ransom must be made to receive a key required for file decryption.

CryptInfinite desktop wallpaper

The developers of CryptInfinite state that users have 24 hours to pay the ransom, otherwise the private key stored in their servers will be deleted. Initially, a $500 payment is demanded, however, if the ransom is not paid within 12 hours, it doubles to $1000. It is also stated that the ransom must be paid using PayPal MyCash vouchers. To decrypt the files, users must send the voucher code via an application that is executed once the system is successfully infected. Unfortunately, at the time of research, there were no tools capable of decrypting files affected by CryptInfinite. The only way to restore your files is to use Windows Backup. Note that by paying the ransom you merely send your money for the cyber criminals, thereby supporting their malicious business. Furthermore, there is no guarantee that your files will ever be decrypted. Therefore, you should never pay the ransom or attempt to contact the developers of CryptInfinite.

Update 2015 November 20 - Fabian Wosar from Emisoft has released a tool (called DecryptInfinite) capable of decrypting files compromised by this ransomware. Download DecryptInfinite tool and decrypt your files for free.

Screenshots of CryptInfinite application used to pay the ransom:

Application used to pay the ransom demanded by CryptInfinite ransomware (sample 1) Application used to pay the ransom demanded by CryptInfinite ransomware (sample 2)

Ransomware viruses such as Chimera, HELP_YOUR_FILES, and TorLocker are often distributed using fake software updates, P2P networks, and infectious e-mail attachments. For this reason, be very attentive when downloading software from third party sources and opening unrecognized e-mails. This kind of computer infection is one of the main reasons why you should maintain regular backups of your files. Moreover, you should always keep all installed software up-to-date and use a legitimate anti-virus or anti-virus suite.

Infectious e-mail message distributing CryptInfinite ransomware:

Malicious email used to distribute CryptInfinite ransomware

CryptInfinite message stating that users' files have been encrypted:

Your personal files are encrypted! Your documents, photos, databases and other important files have been encrypted using a military grade encryption algorithm. The only way to decrypt your files is with a unique decryption key stored remotely in our servers. All your files are now unusable until you decrypt them. You have 24h to pay for the release of your decryption key. After 24h have passed, your decryption key will be erased and you will never be able to restore your files. To obtain your unique decryption key you will need to pay $500 using a PayPal MyCash voucher. If the payment is not sent within 12h the amount to obtain your decryption key will be $1000. PayPal MyCash vouchers can be purchased at CVS, 7-Eleven, Dollar General, fred`s Super Dollar, Family Dollar and many other stores. After obtaining your PayPal MyCash voucher code you need to send an email to [email protected] with the following information.
1. Your $500 PayPal MyCash PIN
2. Your encryption ID Shortly after the voucher is received and verified, all your files will be restored to their previous state. All payments are processed and verified manually, do not try to send invalid PIN numbers.

File types encrypted by CryptInfinite ransomware:

*.ACCDB, *.BAY, *.DBF, *.DER, *.DNG, *.DOCX, *.DXF, *.ERF, *.INDD, *.MEF, *.MRW, *.ODB, *.ODP, *.PDD, *.PEF, *.PPTM, *.PSD, *.PTX, *.RAW, *.SRF, *.XLK, *.XLS, *.ach, *.aiff, *.arw, *.asf, *.asx, *.avi, *.back, *.backup, *.bak, *.bin, *.blend, *.cdr, *.cer, *.cpp, *.crt, *.crw, *.dat, *.dcr, *.dds, *.des, *.dit, *.doc, *.docm, *.dtd, *.dwg, *.dxg, *.edb, *.eml, *.eps, *.fla, *.flac, *.flvv, *.gif, *.groups, *.hdd, *.hpp, *.iif, *.java, *.kdc, *.key, *.kwm, *.log, *.lua, *.m2ts, *.max, *.mdb, *.mdf, *.mkv, *.mov, *.mpeg, *.mpg, *.msg, *.ndf, *.nef, *.nrw, *.nvram, *.oab, *.obj, *.odc, *.odm, *.ods, *.odt, *.ogg, *.orf, *.ost, *.pab, *.pas, *.pct, *.pdb, *.pdf, *.pem, *.pfx, *.pif, *.png, *.pps, *.ppt, *.pptx, *.prf, *.pst, *.pwm, *.qba, *.qbb, *.qbm, *.qbr, *.qbw, *.qbx, *.qby, *.qcow, *.qcow2, *.qed, *.raf, *.rtf, *.rvt, *.rwl, *.safe, *.sav, *.sql, *.srt, *.srw, *.stm, *.svg, *.swf, *.tex, *.tga, *.thm, *.tlg, *.vbox, *.vdi, *.vhd, *.vhdx, *.vmdk, *.vmsd, *.vmx, *.vmxf, *.vob, *.wav, *.wma, *.wmv, *.wpd, *.wps, *.xlr, *.xlsb, *.xlsm, *.xlsx, *.yuv,*.JPEG,*.jpe, *.jpg

CryptInfinite ransomware removal:

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Malwarebytes is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced start-up options, in the opened "General PC Settings" window select Advanced startup. Click the "Restart now" button. Your computer will now restart in the "Advanced Startup options menu". Click the "Troubleshoot" button, then click the "Advanced options" button. In the advanced option screen, click "Start-up settings". Click the "Restart" button. Your PC will restart into Start-up Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the CryptInfinite virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the CryptInfinite ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining CryptInfinite files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of CryptInfinite are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click on it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of files encrypted by CryptInfinite, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

 To protect your computer from file encrypting ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and Malwarebytes Anti-Ransomware, which artificially implant group policy objects into the registry to block rogue programs such as CryptInfinite.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises such attempts without need for user intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove CryptInfinite ransomware:

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
CryptInfinite virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of CryptInfinite virus on your mobile device.
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