Remove CryptXXX 3.0 Ransomware and Restore .crypt Encrypted Files - How to, Technology and PC Security Forum |

Remove CryptXXX 3.0 Ransomware and Restore .crypt Encrypted Files

New Update! Malware researchers from Kaspersky have updated their Rannoh Decryptor utility with decryption for the CryptXXX 3.0 ransomware family. Files should be fully decrypted with the help of that software. You can find its download page and instructions at: Kaspersky’s Rannoh Decryptor page.
Update! It appears that TrendMicro have a decryptor software for the CryptXXX 3.0 variant. It might work with Cryp1 (UltraCrypter) as well. Unfortunately, for now, it decrypts files only partially. You can read about it on TrendMicro’s support site.


The CryptXXX ransomware creators have now released CryptXXX 3.0. The latest variant stops Kaspersky’s decryptor of unlocking files. A side effect of the new release is that the creators’ own decryptor doesn’t work as well. The ransomware again uses the Angler Exploit Kit. To see if you can restore your files now and how to remove this ransomware, you should read the whole article.

Threat Summary

NameCryptXXX 3.0
Short DescriptionThe ransomware encrypts your files with .crypt extension and asks a ransom of 500 US dollars for decryption.
SymptomsAll of your files get encrypted. Files containing messages with instructions are created.
Distribution MethodSpam Emails, Exploit Kits
Detection Tool See If Your System Has Been Affected by CryptXXX 3.0


Malware Removal Tool

User ExperienceJoin Our Forum to Discuss CryptXXX 3.0.
Data Recovery ToolWindows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

CryptXXX 3.0 Ransomware – Spread

CryptXXX 3.0 ransomware is spread in a number of ways. One of the ways is through spam e-mails. The e-mails have attached files with the malware inside. If you open the attachment, the malware enters your PC, and the damage is done. Social networks or file sharing services might also have such dangerous files helping deliver the ransomware.

The CryptXXX 3.0 ransomware spreads mainly with the Angler Exploit Kit as previous variants. The Bedep Trojan is not excluded to be involved again. By visiting websites or from clicking on suspicious links you can get the exploit kit to inject the malware in your computer machine.

CryptXXX 3.0 Ransomware – More Information

The CryptXXX 3.0 is the newest variant of the crypto-virus. The previous ones CryptXXX ransomware and CryptXXX 2.0 ransomware have been beaten by Kaspersky, who provided a free decryptor. To stop this, the ransomware creators made this third variant and prevented the Kaspersky decrypting tool from working. Doing that resulted in a side-effect and now even if you pay the ransom, the very own decryptor of the malware makers will not work.

You can see in the picture below, the error the decryptor gives:


The following files could be created:




The goal of these files is for the CryptXXX 3.0 ransomware to be persistent and load with each start of the Operating System.

Registry entries are probably also created to support the evasive actions of the ransomware.

Afterward, CryptXXX 3.0 will lock your files, no matter on what storage device they are found or what current extension they have. The ransomware searches to encrypt files with the following extensions:

→ .3dm, .aes, .ARC, .asc, .asf, .asm, .asp, .avi, .bak, .bat, .bmp, .brd, .cgm, .class, .cmd, .cpp, .crt, .csr, .CSV, .dbf, .dch, .dcu, .dif, .dip, .djv, .djvu, .doc, .DOC, .docb, .docm, .docx, .DOT, .dotm, .dotx, .eml, .fla, .flv, .frm, .gif, .gpg, .hwp, .ibd, .jar, .java, .jpeg, .jpg, .key, .lay, .lay6, .ldf, .max, .mdb, .mdf, .mid, .mkv, .mml, .mov, .mp3, .mp4, .mpeg, .mpg, .ms11, .MYD, .MYI, .NEF, .obj, .odb, .odg, .odp, .ods, .odt, .otg, .otp, .ots, .ott, .PAQ, .pas, .pdf, .pem, .php, .png, .pot, .potm, .potx, .ppam, .pps, .ppsm, .ppsx, .PPT, .pptm, .pptx, .psd, .qcow2, .rar, .raw, .RTF, .sch, .sldx, .slk, .sql, .SQLITE3, .SQLITEDB, .stc, .std, .sti, .stw, .svg, .swf, .sxc, .sxd, .sxi, .sxm, .sxw, .tar, .tar, .bz2, .tbk, .tgz, .tif, .tiff, .txt, .uop, .uot, .vbs, .vdi, .vmdk, .vmx, .vob, .wav, .wks, .wma, .wmv, .xlc, .xlm, .xls, .XLS, .xlsb, .xlsm, .xlsx, .xlt, .xltm, .xltx, .xlw, .xml, .zip, .zipx

The file extension that is set on every file is still .crypt.


Above you can see a picture example of the instructions for ransom payment of CryptXXX 3.0.
Below the files that load them are listed:

  • de_crypt_readme.bmp
  • de_crypt_readme.txt
  • de_crypt_readme.html

You are asked to pay the sum of 1.2 Bitcoins or the equivalent of 500 US dollars within five days’ time. The amount keeps increasing with every day passed.

Contacting the ransomware makers of the CryptXXX 3.0 ransomware is no good. Paying the ransom is strongly NOT advised. For the moment, the cyber-criminals have broken their own decryptor, and the decryption of your files is not possible. Even if they have it fixed, paying the ransom will only aid the crooks. They could also get motivated in making a stronger variant of the virus. Do not worry, as there are other ways you can try to get your files back and Kaspersky should eventually find a solution to decrypting files for free with one of their tools.

If you notice a weird activity on your PC, shut it down – you might stop a raving ransomware from encrypting your files. In the ransomware prevention thread in our forum you will find lots of useful tips on the matter.

Remove CryptXXX 3.0 Ransomware and Restore .crypt Encrypted Files

If CryptXXX 3.0 ransomware has infected your computer, you should remove it as it will try to encrypt files found on each storage device on your computer. If you are infected with the ransomware, you should have at least a bit of experience in removing viruses. See the instructions given below to remove it and if you can restore some files. Kaspersky might beat the ransomware code again and update their decryptor, but you should remove the virus regardless.

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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