.Trosak file extension ransomware (Restore, Decrypt .trosak files)

Trosak ransomware is a malware that, once it’s taken over your computer, encrypts all documents, photos and music stored on your system drives and attached network drives.

What is ransomware? Ransomware is a type of malicious software that encrypts users files, preventing access to them. Trosak ransomware uses very strong hybrid encryption with a large key to eliminate the possibility of brute force a key that will allow to decrypt encrypted photos, documents and music. It affects all current versions of Windows operating system like the Windows 10, Windows 8, Windows 7, Windows Vista and Windows XP. The .Trosak ransomware virus encrypts almost of files, including common as:

.hvpl, .sidn, .sum, .xbplate, .2bp, .mdb, .bkp, .odb, .zif, .wmv, .itm, .bay, .ztmp, .rgss3a, .blob, .crw, .wmd, .wpa, .ff, .wsc, .rar, .wgz, .dcr, .wpe, .sb, .wav, .rtf, .wdp, .wdb, .mrwref, .itdb, .css, .3ds, .xls, .pdd, .xx, .sidd, .bsa, .pst, .vpk, .xld, .zip, .xf, .yal, .pem, .odt, .ws, .snx, .webdoc, .cer, .mlx, .ncf, .rim, .docx, .p7b, .layout, .epk, .sav, .xlsb, .tor, .bc6, .mef, .xlk, .doc, .wmv, .z3d, .ntl, .map, .dazip, .srf, .litemod, .apk, .vcf, .z, .py, .jpeg, .lbf, .x3f, .0, .wpb, .csv, .jpe, .wcf, .flv, .wp7, .xlsm, .wm, .hkdb, .fpk, .zi, .raw, .cr2, .dwg, .xlsx, .wpl, .ibank, .hplg, .db0, .wp6, .t13, .wot, .srw, .docm, .cas, .wn, .raf, .wri, .tax, .svg, .zip, .fos, .wma, .wp5, .erf, .vpp_pc, .ptx, .xmmap, .pptx, .ltx, .odm, .y, .avi, .wbk, .forge, .ysp, .x3f, .mdbackup, .xlsx, .xxx, .qic, .der, .cdr, .jpg, .upk, .wpg, .menu, .hkx, .p7c, .mpqge, .7z, .webp, .wps, .3dm, .m3u, .vfs0, .dbf, .xwp, .sid, .xmind, .m4a, .xlsm, .bar, .big, .wbm, .ods, .das, .mp4, .lvl, .vdf, .odp, .nrw, .dba, .wbmp, .wbc, .xdl, .dxg, .pak, .wpd, .mddata, .dmp, .wotreplay, .ai, .orf, .wire, .ybk, .icxs, .desc, .wma, .arch00, .r3d, .zdc, .pef, .bc7, .txt, .wps, .zdb, .arw, .xar, .pdf, .asset, .pfx, .sr2, .lrf, .zw, .re4, .vtf, .wbd, .wmo, .bkf, .qdf, .wb2, .esm, .rwl, .eps, .t12, .zabw, .m2, .kf, .mdf, .fsh, .xpm, .xy3, .wsd, .iwd, .gdb, .iwi, .syncdb, .cfr, .p12, .wpw, .itl, .mov, .bik, .3fr, .xls, .indd, .wbz, .rb, .pptm

When encrypting a file it will append the .trosak file extension to each encrypted file name to identify that the file has been encrypted. For example, a file called sample.bmp would be encrypted and renamed to sample.bmp.trosak.

When the encryption is complete, Trosak ransomware will drop a file named ‘_readme.txt’ with ransom note. It includes instructions on how to purchase a private key to decrypt all documents, photos and music. You can see an one of the variants of the ransom note below:

Don't worry my friend, you can return all your files!
All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
The only method of recovering files is to purchase decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees you have?
You can send one of your encrypted file from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. File must not contain valuable information.
You can get and look video overview decrypt tool:
https://we.tl/t-hK4tAv2Ed9
Price of private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that's price for you is $490.
Please note that you'll never restore your data without payment.
Check your e-mail "Spam" folder if you don't get answer more than 6 hours.
 
 
To get this software you need write on our e-mail:
merosa@india.com
 
Reserve e-mail address to contact us:
merosa@firemail.cc
 
Your personal ID:

The guide will allow you remove .Trosak ransomware virus. What is more, the steps below will help you recover (decrypt) encrypted documents, photos and music for free.

Quick links:

1. How to remove .Trosak ransomware
2. How to decrypt .trosak files
3. Use STOPDecrypter to decrypt .trosak files
4. How to restore .trosak files
5. How to protect your computer from .Trosak ransomware?
6. Finish words

How to remove .Trosak ransomware

Even if you have the up-to-date classic antivirus installed, and you have checked your machine for viruses and removed anything found, you need to do the tutorial below. The .Trosak ransomware virus removal is not simple as installing another antivirus. Classic antivirus applications are not made to run together and will conflict with each other, or possibly crash Microsoft Windows. Instead we advise complete the steps below an use Zemana Anti-malware, Malwarebytes or Kaspersky Virus Removal Tool, which are free applications dedicated to search for and remove malware such as .Trosak ransomware virus. Run these tools to ensure the ransomware virus is removed.

How to remove .Trosak ransomware with Zemana Anti-malware

Zemana Anti-malware is a utility which can get rid of ransomware infections, adware software, worms, trojans and other malicious software from your computer easily and for free. Zemana Anti-malware is compatible with most antivirus software. It works under Windows (10 – XP, 32 and 64 bit) and uses minimum of machine resources.

1. Installing the Zemana is simple. First you’ll need to download Zemana AntiMalware (ZAM) by clicking on the link below. Save it directly to your Microsoft Windows Desktop.
   
   

   Zemana AntiMalware
   164025 downloads
   Author: Zemana Ltd
   Category: Security tools
   Update: July 16, 2019
   
2. When the download is finished, close all programs and windows on your PC. Open a file location. Double-click on the icon that’s named Zemana.AntiMalware.Setup.
3. Further, press Next button and follow the prompts.
4. Once installation is complete, click the “Scan” button . Zemana Free tool will start scanning the whole machine to find out the .Trosak ransomware virus and other kinds of potential threats such as trojans and worms. This task may take quite a while, so please be patient.
5. After Zemana Anti-Malware has finished scanning, the results are displayed in the scan report. In order to remove all items, simply press “Next”. When disinfection is finished, you may be prompted to restart your system.

How to remove Trosak ransomware with MalwareBytes

We advise using the MalwareBytes which are fully clean your computer of the ransomware virus. This free utility is an advanced malicious software removal application developed by (c) Malwarebytes lab. This program uses the world’s most popular antimalware technology. It is able to help you delete ransomware, trojans, malicious software, adware and other security threats from your PC system for free.

1. Download MalwareBytes on your Windows Desktop from the following link.
   
   

   Malwarebytes Anti-malware
   326378 downloads
   Author: Malwarebytes
   Category: Security tools
   Update: April 15, 2020
   
2. When the download is complete, close all applications and windows on your PC system. Open a folder in which you saved it. Double-click on the icon that’s named mb3-setup.
3. Further, press Next button and follow the prompts.
4. Once installation is finished, press the “Scan Now” button to perform a system scan for the .Trosak ransomware virus and other malicious software. A system scan can take anywhere from 5 to 30 minutes, depending on your computer. During the scan MalwareBytes Anti Malware (MBAM) will detect threats present on your machine.
5. Once MalwareBytes Anti Malware (MBAM) completes the scan, a list of all threats found is created. All found items will be marked. You can get rid of them all by simply press “Quarantine Selected”. Once the clean up is finished, you may be prompted to restart your computer.

The following video offers a steps on how to remove hijacker infections, adware and other malware with MalwareBytes AntiMalware (MBAM).

Remove .Trosak ransomware with KVRT

If MalwareBytes anti malware or Zemana anti-malware cannot remove this ransomware virus, then we recommends to run the KVRT. KVRT is a free removal tool for ransomware, adware, trojans, worms and other malicious software.

Download Kaspersky virus removal tool (KVRT) from the following link.

After downloading is finished, double-click on the KVRT icon. Once initialization process is finished, you’ll see the Kaspersky virus removal tool screen as displayed on the screen below.

Click Change Parameters and set a check near all your drives. Click OK to close the Parameters window. Next click Start scan button . KVRT program will scan through the whole computer for the .Trosak ransomware and other malicious software. While the KVRT program is checking, you can see number of objects it has identified as threat.

As the scanning ends, KVRT will show a scan report as shown below.

All found threats will be marked. You can get rid of them all by simply press on Continue to start a cleaning procedure.

How to decrypt .trosak files

The .Trosak ransomware virus encourages to make a payment in Bitcoins to get a key to decrypt documents, photos and music. Important to know, currently not possible to decrypt .trosak files without the private key and decrypt application.

Should you pay the ransom? A majority of experienced security professionals will reply immediately that you should never pay a ransom if infected by ransomware! If you choose to pay the ransom, there is no 100% guarantee that you can decrypt all personal files!

With some variants of Trosak ransomware, it is possible to decrypt or restore encrypted files using free tools such as STOPDecrypter, ShadowExplorer and PhotoRec.

Use STOPDecrypter to decrypt .trosak files

Michael Gillespie (@) released a free decryption tool named STOPDecrypter (download from download.bleepingcomputer.com/demonslay335/STOPDecrypter.zip).

STOPDecrypter has been updated to include decryption support for the following .djvu* variants (.djvu, .djvuu, .udjvu, .djvuq, .djvur, .djvut, .pdff, .tro, .tfude, .tfudeq, .tfudet, .rumba, .adobe, .adobee, .blower, .promos. STOPDecrypter will work for any extension of the Djvu* variants including new extensions (.trosak).

Please check the twitter post for more info.

How to restore .trosak files

In some cases, you can recover files encrypted by .Trosak ransomware virus. Try both methods. Important to understand that we cannot guarantee that you will be able to restore all encrypted personal files.

Restore .trosak encrypted files using Shadow Explorer

If automated backup (System Restore) is enabled, then you can use it to restore all encrypted files to previous versions.

Click the link below to download ShadowExplorer. Save it to your Desktop.

After downloading is finished, open a directory in which you saved it. Right click to ShadowExplorer-0.9-portable and select Extract all. Follow the prompts. Next please open the ShadowExplorerPortable folder as shown on the screen below.

Double click ShadowExplorerPortable to start it. You will see the a window like below.

In top left corner, choose a Drive where encrypted personal files are stored and a latest restore point as on the image below (1 – drive, 2 – restore point).

On right panel look for a file that you wish to restore, right click to it and select Export as displayed on the screen below.

Use PhotoRec to recover .trosak files

Before a file is encrypted, the .Trosak ransomware virus makes a copy of this file, encrypts it, and then deletes the original file. This can allow you to restore your files using file restore apps such as PhotoRec.

Download PhotoRec on your Microsoft Windows Desktop by clicking on the link below.

When the download is complete, open a directory in which you saved it. Right click to testdisk-7.0.win and choose Extract all. Follow the prompts. Next please open the testdisk-7.0 folder as displayed on the screen below.

Double click on qphotorec_win to run PhotoRec for Windows. It’ll open a screen as displayed below.

Select a drive to recover as shown below.

You will see a list of available partitions. Select a partition that holds encrypted personal files as shown on the screen below.

Click File Formats button and select file types to recover. You can to enable or disable the restore of certain file types. When this is finished, press OK button.

Next, press Browse button to choose where restored documents, photos and music should be written, then click Search.

Count of restored files is updated in real time. All recovered files are written in a folder that you have chosen on the previous step. You can to access the files even if the restore process is not finished.

When the recovery is complete, click on Quit button. Next, open the directory where recovered personal files are stored. You will see a contents as shown on the screen below.

All restored photos, documents and music are written in recup_dir.1, recup_dir.2 … sub-directories. If you are looking for a specific file, then you can to sort your recovered files by extension and/or date/time.

How to protect your computer from .Trosak ransomware?

Most antivirus software already have built-in protection system against the virus. Therefore, if your computer does not have an antivirus program, make sure you install it. As an extra protection, use the HitmanPro.Alert.

Use HitmanPro.Alert to protect your computer from .Trosak ransomware

HitmanPro.Alert is a small security utility. It can check the system integrity and alerts you when critical system functions are affected by malware. HitmanPro.Alert can detect, remove, and reverse ransomware effects.

Click the link below to download the latest version of HitmanPro Alert for MS Windows. Save it directly to your Windows Desktop.

After the downloading process is done, open the folder in which you saved it. You will see an icon like below.

Double click the HitmanPro Alert desktop icon. Once the utility is launched, you’ll be shown a window where you can select a level of protection, like below.

Now click the Install button to activate the protection.

Finish words

Now your system should be free of the .Trosak ransomware virus. Remove MalwareBytes Free and Kaspersky virus removal tool. We suggest that you keep Zemana Free (to periodically scan your machine for new malware). Moreover, to prevent virus, please stay clear of unknown and third party software, make sure that your antivirus application, turn on the option to block or scan for ransomware.

If you need more help with .Trosak ransomware virus related issues, go to here.