Name | Trojan.Ransomcrypt.T |
Type | Ransomware |
Short Description | Encrypts important user data and demands ransom in return. |
Symptoms | The user may have his files encrypted without his consent and may see a ransom note with instructions on how to pay for them. |
Distribution Method | Malicious Links Spam Mail |
Detection Tool | Download Malware Removal Tool, to See If Your System Has Been Affected by malware |
User Experience | Join our forum to follow the discussion about Trojan.Ransomcrypt.T. |
Data Recovery Tool | Windows 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. |
Trojan.Ransomcrypt.T appears to be the most dangerous out of all the Ransomcrypt variants infecting PCs everywhere. Security researchers strongly advise users to look for any .xtbl extensions on their files and in case they detect them to try and remove the threat. One way to do this is to follow the step-by-step instructions after this article and check the hotlinks for suggested methods for decrypting the encrypted files. Experts strongly advise against complying with the ransom demands of the cyber crooks.
Trojan.Ransomcrypt.T – How Did I Get Infected?
One way to become a victim of this malicious threat is by opening spam mail that may contain ‘Open this.’ type of infected files. Some spam mails may resemble reputable services such as the Windows 10 Upgrade e-mail and most users with little or no experience with spam mail may fall for it. Some emails have even fooled experienced users this is why email software with spam filters is always recommended.
Trojan.Ransomcrypt.T In Detail
Symantec researchers have established that the .T variant is more sophisticated than the main one. Once the malicious file has been executed on the user PC, the Trojan then creates these objects:
→Windir\csrss.exe
Temp\lock
Temp\state
UserProfile\Application Data\}randomname{.bmp
It also tampers with the registry editor, creating the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\”Client Server Runtime Subsystem” = “%Windir%\csrss.exe”
It aims to make the file “csrss.exe” run on system startup.
After modifying several user settings, the trojan horse then opens up an active connection to these reported http locations:
→gxyvmhc55s4fss2q.onion/reg
gxyvmhc55s4fss2q.onion/prog
gxyvmhc55s4fss2q.onion/err
gxyvmhc55s4fss2q.onion/cmd
gxyvmhc55s4fss2q.onion/sys
After this is done, the trojan then begins scanning for files on external memory carries like removable drives and remote drives. It also scans fixed drives used by the PC. This trojan supports a huge database of file formats it encrypts:
→.3ds .3fr .3g2 .3gp .7z .accda .accdb .accdc .accde .accdt .accdw .adb .adp .ai .ai3 .ai4 .ai5 .ai6 .ai7 .ai8 .anim .arw .as .asa .asc .ascx .asm .asmx .asp .aspx .asr .asx .avi .avs .backup .bak .bay .bd .bin .bmp .bz2 .c .cdr .cer .cf .cfc .cfm .cfml .cfu .chm .cin .class .clx .config .cpp .cr2 .crt .crw .cs .css .csv .cub .dae .dat .db .dbf .dbx .dc3 .dcm .dcr .der .dib .dic .dif .divx .djvu .dng .doc .docm .docx .dot .dotm .dotx .dpx .dqy .dsn .dt .dtd .dwg .dwt .dx .dxf .edml .efd .elf .emf .emz .epf .eps .epsf .epsp .erf .exr .f4v .fido .flm .flv .frm .fxg .geo .gif .grs .gz .h .hdr .hpp .hta .htc .htm .html .icb .ics .iff .inc .indd .ini .iqy .j2c .j2k .java .jp2 .jpc .jpe .jpeg .jpf .jpg .jpx .js .jsf .json .jsp .kdc .kmz .kwm .lasso .lbi .lgf .lgp .log .m1v .m4a .m4v .max .md .mda .mdb .mde .mdf .mdw .mef .mft .mfw .mht .mhtml .mka .mkidx .mkv .mos .mov .mp3 .mp4 .mpeg .mpg .mpv .mrw .msg .mxl .myd .myi .nef .nrw .obj .odb .odc .odm .odp .ods .oft .one .onepkg .onetoc2 .opt .oqy .orf .p12 .p7b .p7c .pam .pbm .pct .pcx .pdd .pdf .pdp .pef .pem .pff .pfm .pfx .pgm .php .php3 .php4 .php5 .phtml .pict .pl .pls .pm .png .pnm .pot .potm .potx .ppa .ppam .ppm .pps .ppsm .ppt .pptm .pptx .prn .ps .psb .psd .pst .ptx .pub .pwm .pxr .py .qt .r3d .raf .rar .raw .rdf .rgbe .rle .rqy .rss .rtf .rw2 .rwl .safe .sct .sdpx .shtm .shtml .slk .sln .sql .sr2 .srf .srw .ssi .st .stm .svg .svgz .swf .tab .tar .tbb .tbi .tbk .tdi .tga .thmx .tif .tiff .tld .torrent .tpl .txt .u3d .udl .uxdc .vb .vbs .vcs .vda .vdr .vdw .vdx .vrp .vsd .vss .vst .vsw .vsx .vtm .vtml .vtx .wb2 .wav .wbm .wbmp .wim .wmf .wml .wmv .wpd .wps .x3f .xl .xla .xlam .xlk .xlm .xls .xlsb .xlsm .xlsx .xlt .xltm .xltx .xlw .xml .xps .xsd .xsf .xsl .xslt .xsn .xtp .xtp2 .xyze .xz .zip
After scanning this huge variety of files the trojan variant then encrypts them with a .xtbl extension. An encrypted file may look similar to this one:
→New Word Document.docx.xtbl
And Windows displays a notification message that the file is corrupt upon opening it.
After encrypting the files, this ransomware virus then leaves the following files in the folders of the encrypted files
The Trojan then drops the following file in each folder that has encrypted files like this example:
→C:\Users\[USERNAME]\Documents\Readme124816248912.txt
After doing so, the next step of the trojan is to change the desktop wallpaper to a picture containing demands that ask the user to open the readme text with the random number above for more information. The readme text contains the following message in Russian and English:
“ATTENTION! All the important files on your disks were encrypted. The details can be found in the README.txt files which you can locate on any of your disks.”
Removing Trojan.Ransomcrypt.T
In order to remove this variant, please use advanced anti malware and follow the instructions below in order to boot into safe mode. In case you wish to try and decrypt your data, you can check the suggested links here.
Methods for decryption:
https://sensorstechforum.com/restore-files-encrypted-via-rsa-encryption-remove-cryptowall-and-other-ransomware-manually/
https://sensorstechforum.com/remove-rsa-2048-encryption-key-from-cryptowall-3-0/
Scan and remove ransomware via a live OS:
Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.
As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.
How to recognize trustworthy sources:
- Always check "About Us" web page.
- Profile of the content creator.
- Make sure that real people are behind the site and not fake names and profiles.
- Verify Facebook, LinkedIn and Twitter personal profiles.
- Guide 1: How to Remove Trojan.Ransomcrypt.T from Windows.
- Guide 2: Get rid of Trojan.Ransomcrypt.T from Mac OS X.
How to Remove Trojan.Ransomcrypt.T from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Trojan.Ransomcrypt.T





Step 2: Uninstall Trojan.Ransomcrypt.T and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:



Step 3: Clean any registries, created by Trojan.Ransomcrypt.T on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by Trojan.Ransomcrypt.T there. This can happen by following the steps underneath:



Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Scan for Trojan.Ransomcrypt.T with SpyHunter Anti-Malware Tool
Step 5 (Optional): Try to Restore Files Encrypted by Trojan.Ransomcrypt.T.
Ransomware infections and Trojan.Ransomcrypt.T aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
Get rid of Trojan.Ransomcrypt.T from Mac OS X.
Step 1: Uninstall Trojan.Ransomcrypt.T and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Trojan.Ransomcrypt.T via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 3 (Optional): Try to Restore Files Encrypted by Trojan.Ransomcrypt.T.
Ransomware infections and Trojan.Ransomcrypt.T aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
Trojan.Ransomcrypt.T FAQ
What is Trojan.Ransomcrypt.T ransomware and how does it work?
Trojan.Ransomcrypt.T is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.
Many ransomware viruses use sophisticated encryption algorithm how to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.
How does Trojan.Ransomcrypt.T ransomware infect my computer?
Via several ways.Trojan.Ransomcrypt.T Ransomware infects computers by being sent via phishing e-mails, containing virus attachment.
This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.
After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.
Another way, you may become a victim of Trojan.Ransomcrypt.T is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.
How to open .Trojan.Ransomcrypt.T files?
You can't. At this point the .Trojan.Ransomcrypt.T files are encrypted. You can only open them once they are decrypted.
Decryptor did not decrypt my data. What now?
Do not panic and backup the files. If a decryptor did not decrypt your .Trojan.Ransomcrypt.T files successfully, then do not despair, because this virus is still new.
One way to restore files, encrypted by Trojan.Ransomcrypt.T ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.
How Do I restore ".Trojan.Ransomcrypt.T" files (Other Methods)?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .Trojan.Ransomcrypt.T files.
These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How do I get rid of Trojan.Ransomcrypt.T ransomware virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate Trojan.Ransomcrypt.T ransomware and then remove it without causing any additional harm to your important .Trojan.Ransomcrypt.T files.
Also, keep in mind that viruses like Trojan.Ransomcrypt.T ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.
What to Do If nothing works?
There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:
- Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
- Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
- Also, check if some of the files that were encrypted it can be re-downloaded from the web.
- Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
- You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.
More tips you can find on our forums, where you can also asks any questions about your ransomware problem.
How to Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer. Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
- Germany - Offizielles Portal der deutschen Polizei
- United States - IC3 Internet Crime Complaint Centre
- United Kingdom - Action Fraud Police
- France - Ministère de l'Intérieur
- Italy - Polizia Di Stato
- Spain - Policía Nacional
- Netherlands - Politie
- Poland - Policja
- Portugal - Polícia Judiciária
- Greece - Cyber Crime Unit (Hellenic Police)
- India - Mumbai Police - CyberCrime Investigation Cell
- Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.