Decrypt .EXTE Files Encrypted by CryptoMix for Free

Decrypt .EXTE Files Encrypted by CryptoMix for Free

This article aims to help you by showing how to remove CryptoMix ransomware and decrypt .EXTE encrypted files without paying the ransom.

Yet another variant of the notorious CryptoMix ransomware virus has appeared in the wild. The virus aims to encrypt the files on the infected computers, adding the .EXTE file extension and changing their names. In addition to this, the ransomware also adds a ransom note, named “_HELP_INSTRUCTION.TXT” which has multiple different e-mails to which the victim must send a unique decrypt id. Fortunately, the virus is part of the CryptoMix ransomware variants which have all been decrypted so far and if you keep reading this article, you will understand how to remove .EXTE ransomware and decrypt your files without having to pay the ransom.

Threat Summary

Name.EXTE Virus
TypeRansomware, Cryptovirus
Short DescriptionEncrypts the files on the computers infected by it in order to demand ransom from victims.
SymptomsAdds the .EXTE file extension and changes the names of the encrypted files.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by .EXTE Virus

Download

Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .EXTE Virus.
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.

.EXTE File Virus – More Information

Being a variant of the CryptoMix ransomware infections, this virus aims to perform multiple different types of activities on the computers infected by it. It all starts with it’s malicious loader type of file, whose primary purpose is to extract the payload of the .EXTE ransomware virus. Such loader may pretend to be:

  • Legitimate setup, uploaded online.
  • Legitimate document sent to you over the web (Word, .PDF, Excel).
  • A game crack or any other activation software uploaded on suspicious websites.
  • A web link or a button which causes a drive-by download when you click on it. Such are often spammed as comments or other suspicious messages. Sometimes they are featured in spam e-mails as well.

Once the victim opens the loader file of .EXTE ransomware, the virus does not waste any time and downloads it’s payload from the C2 sever of the cyber-criminals it connects to. The payload may be under different names and be located in the commonly targeted folders of Windows:

After the malicious files are dropped, the virus begins encrypting the files on the infected computer. It targets mainly files with the following file types:

→ .sql, .mp4, .7z, .rar, .m4a, .wma, .avi, .wmv, .csv, .d3dbsp, .zip, .sie, .sum, .ibank, .t13, .t12, .qdf, .gdb, .tax, .pkpass, .bc6, .bc7, .bkp, .qic, .bkf, .sidn, .sidd, .mddata, .itl, .itdb, .icxs, .hvpl, .hplg, .hkdb, .mdbackup, .syncdb, .gho, .cas, .svg, .map, .wmo, .itm, .sb, .fos, .mov, .vdf, .ztmp, .sis, .sid, .ncf, .menu, .layout, .dmp, .blob, .esm, .vcf, .vtf, .dazip, .fpk, .mlx, .kf, .iwd, .vpk, .tor, .psk, .rim, .w3x, .fsh, .ntl, .arch00, .lvl, .snx, .cfr, .ff, .vpp_pc, .lrf, .m2, .mcmeta, .vfs0, .mpqge, .kdb, .db0, .dba, .rofl, .hkx, .bar, .upk, .das, .iwi, .litemod, .asset, .forge, .ltx, .bsa, .apk, .re4, .sav, .lbf, .slm, .bik, .epk, .rgss3a, .pak, .big, wallet, .wotreplay, .xxx, .desc, .py, .m3u, .flv, .js, .css, .rb, .png, .jpeg, .txt, .p7c, .p7b, .p12, .pfx, .pem, .crt, .cer, .der, .x3f, .srw, .pef, .ptx, .r3d, .rw2, .rwl, .raw, .raf, .orf, .nrw, .mrwref, .mef, .erf, .kdc, .dcr, .cr2, .crw, .bay, .sr2, .srf, .arw, .3fr, .dng, .jpe, .jpg, .cdr, .indd, .ai, .eps, .pdf, .pdd, .psd, .dbf, .mdf, .wb2, .rtf, .wpd, .dxg, .xf, .dwg, .pst, .accdb, .mdb, .pptm, .pptx, .ppt, .xlk, .xlsb, .xlsm, .xlsx, .xls, .wps, .docm, .docx, .doc, .odb, .odc, .odm, .odp, .ods, .odt.

After encryption has completed, the EXTE virus adds it’s distinctive file extension and completely changes the names of your important files, so that they become no longer recognizable. This results in the following appearance of the files:

After doing so, the virus also drops it’s ransom note, which has the following content:

Hello!
Attention! All Your data was encrypted!
For specific information, please send us an email with Your ID number:
[email protected]
[email protected]
[email protected]
We will help You as soon as possible.
DECRYPT-ID-{unique ID}

Fortunately, you do not have to do any of these activities as the Exte ransomware may as well be decryptable, mainly because it is a CryptoMix variant and most of those are decryptable. Keep reading this article, to first remove .EXTE file virus and then decrypt your files without paying a dime.

Remove .EXTE CryptoMix from Your PC

Before actually beginning the removal process, we would advise to backup all your files, even though they are encrypted. Then, we recommend you to follow the instructions below. You can try to find and remove the malicious files of the .EXTE ransomware manually, but for maximum effectiveness, a ransomware-specific anti-malware programs should be used to scan for and remove all traces of the .EXTE file virus automatically.

Manually delete .EXTE Virus from your computer

Note! Substantial notification about the .EXTE Virus threat: Manual removal of .EXTE Virus 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.

1. Boot Your PC In Safe Mode to isolate and remove .EXTE Virus files and objects
2.Find malicious files created by .EXTE Virus on your PC

Automatically remove .EXTE Virus by downloading an advanced anti-malware program

1. Remove .EXTE Virus with SpyHunter Anti-Malware Tool and back up your data

.EXTE Ransomware – Decryption Process

Before any decryption process by this virus begins, recommendations are to use an advanced anti-malware tool to remove the infection and then to back-up the encrypted files by creating several copies of them on different removable drives or in the cloud.

Then, we advise you to follow these steps:

Step #1: Download “CryptoMix Fix” tool from Avast’s website. Link to the download page, you can locate below:

https://www.avast.com/ransomware-decryption-tools#cryptomix

Make sure to save the file somewhere where you can easily find it:

Step #2: Run the program and click on the “Next” button.

Step #3: Choose the drive which you want to be scanned for encrypted files and click on “Next” once more. You can also add a folder that has important files, by clicking on the “Add Folder” button on the bottom-right:

Step #4: Find an original file and it’s encrypted analogue. If you struggle finding an original file, please check the default Windows folders of a non-infected PC with the same version of Windows as yours:

→ For newer Windows (8, 8.1, 10):
C:\Windows\Web\Wallpaper
For Windows 7 and earlier:
C:\Users\Public\Pictures
C:\Users\{Username}\Pictures

Step #5: Upload the files in the blank fields of the next step of the Avast CryptoMix Fix decryptor:

Step #6: Paste the password from your version of CryptoMix in the next field in case you know it:

And now all that is left is to run the decryptor and it will begin to do it’s magic.

.EXTE CryptoMix Decryption – The Bottom Line

As a conclusion, it is vital to know that if you have decrypted your files successfully, you are in great luck, because there are many ransomware victims who still haven’t. This is why we at SensorsTechForum are committed to educating users how to avoid such infections before they even happen. To learn how to prevent ransomware viruses and other malware infections from infecting your computer via e-mail, please read the related article below:

Vencislav Krustev

A network administrator and malware researcher at SensorsTechForum with passion for discovery of new shifts and innovations in cyber security. Strong believer in basic education of every user towards online safety.

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1 Comment

  1. Blackbird

    Avast funktioniert nicht für die .EXTE Dateien?!?

    Reply

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