What is CryBrazil ransomware? And how does it carry out its attack?
CryBrazil ransomware is a file-encrypting virus designed to encode important files in a computer. It seems to mainly target Brazilian and Portuguese-speaking users based on its ransom note. Although that does not mean that other users are safe from this ransomware threat. This one uses a highly complex code and initiates a sequence of changes once its malicious payload is dropped in the system. The sequence of changes performed in the system involves the addition of more malicious files to help CryBrazil ransomware carry out its attack by avoiding detection from any antivirus program installed in the infected computer. In addition, it also modifies the registry keys in the Windows Registry so it can run on every system startup. Once these nefarious tasks are carried out, CryBrazil ransomware will scan the computer to look for files with specific file types. These file types may be:
.PNG .PSD .PSPIMAGE .TGA .THM .TIF .TIFF .YUV .AI .EPS .PS .SVG .INDD .PCT .PDF .XLR .XLS .XLSX .ACCDB .DB .DBF .MDB .PDB .SQL .APK .APP .BAT .CGI .COM .EXE .GADGET .JAR .PIF .WSF .DEM .GAM .NES .ROM .SAV CAD Files .DWG .DXF GIS Files .GPX .KML .KMZ .ASP .ASPX .CER .CFM .CSR .CSS .HTM .HTML .JS .JSP .PHP .RSS .XHTML. DOC .DOCX .LOG .MSG .ODT .PAGES .RTF .TEX .TXT .WPD .WPS .CSV .DAT .GED .KEY .KEYCHAIN .PPS .PPT .PPTX ..INI .PRF Encoded Files .HQX .MIM .UUE .7Z .CBR .DEB .GZ .PKG .RAR .RPM .SITX .TAR.GZ .ZIP .ZIPX .BIN .CUE .DMG .ISO .MDF .TOAST .VCD SDF .TAR .TAX2014 .TAX2015 .VCF .XML Audio Files .AIF .IFF .M3U .M4A .MID .MP3 .MPA .WAV .WMA Video Files .3G2 .3GP .ASF .AVI .FLV .M4V .MOV .MP4 .MPG .RM .SRT .SWF .VOB .WMV 3D .3DM .3DS .MAX .OBJ R.BMP .DDS .GIF .JPG .CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG
CryBrazil ransomware begins to encrypt files with the aforementioned formats once it finds them using a strong encryption algorithm. After the encryption, it appends the .crybrazil extension to each one of the affected files. Following data encryption, it changes the desktop wallpaper of the infected computer with a jpg file named “ranso4.jpg” which depicts an image of a clown. The ransom note reads:
“Ele que é o palhaço, mas sou eu quem põe fogo no circo.
ATENÇÃO CRIANÇAS!
Todos os seus arquivos foram criptografados, para recuperá-los de volta entre em contato:
[email protected]”
How does CryBrazil ransomware spread online?
Your computer can get infected with CryBrazil ransomware when you open malware-laden emails. Spam emails still remain to be the most commonly used technique in spreading ransomware threats including CryBrazil ransomware. So it’s advised that you double check any emails before you open them to avoid similar threats from infiltrating your computer.
Wipeout CryBrazil ransomware from your system by following the given removal guide below.
Step 1: Tap Ctrl + Shift + Esc keys to launch the Task Manager.
Step 2: Go to the Processes and Applications tab and look for the malicious processes of CryBrazil ransomware then right click on them and select End Process or End Task.
Step 3: Close the Task Manager and open Control Panel by pressing the Windows key + R, then type in appwiz.cpl and then click OK or press Enter.
Step 4: Look for dubious programs that might be related to CryBrazil ransomware and then Uninstall it/them.
Step 5: Tap Win + E to launch File Explorer.
Step 6: After opening File Explorer, navigate to the following directories below and look for CryBrazil ransomware’s malicious components such as ranso4.jpg which contains the ransom note and other suspicious-looking files and then remove them all.
- %TEMP%
- %APPDATA%
- %DESKTOP%
- %USERPROFILE%\Downloads
- C:\ProgramData\local\
Step 7: Close the File Explorer.
Before you proceed to the next steps below, make sure that you are tech savvy enough to the point where you know exactly how to use and navigate your computer’s Registry. Keep in mind that any changes you make will highly impact your computer. To save you the trouble and time, you can just use [product-name], this system tool is proven to be safe and excellent enough that hackers won’t be able to hack into it. But if you can manage Windows Registry well, then, by all means, go on to the next steps.
Step 8: Tap Win + R to open Run and then type in regedit in the field and tap enter to pull up Windows Registry.
Step 9: Navigate to the listed paths below and look for the registry keys and sub-keys created by CryBrazil ransomware.
- 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
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background
- HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Personalization
- HKEY_CURRENT_USER\Control Panel\Desktop\ScreenSaveTimeOut
- HKEY_CURRENT_USER\Control Panel\Desktop
Step 10: Next, delete the registry keys and sub-keys created by CryBrazil ransomware.
Step 11: Close the Registry Editor.
Step 12: Finally, empty the contents of your Recycle Bin.
Try to recover your encrypted files using the Volume Shadow copies
Restoring your encrypted files using Windows’ Previous Versions feature will only be effective if CryBrazil ransomware hasn’t deleted the shadow copies of your files. But still, this is one of the best and free methods there is, so it’s definitely worth a shot.
To restore the encrypted file, right-click on it and select Properties, a new window will pop-up, then proceed to Previous Versions. It will load the file’s previous version before it was modified. After it loads, select any of the previous versions displayed on the list like the one in the illustration below. And then click the Restore button.
Once you’re done executing the steps given above, you need to continue the removal process of CryBrazil ransomware using a reliable program like [product-name]. How? Follow the advanced removal steps below.
Perform a full system scan using [product-code]. To do so, follow these steps:
- Turn on your computer. If it’s already on, you have to reboot
- After that, the BIOS screen will be displayed, but if Windows pops up instead, reboot your computer and try again. Once you’re on the BIOS screen, repeat pressing F8, by doing so the Advanced Option shows up.
- To navigate the Advanced Option use the arrow keys and select Safe Mode with Networking then hit
- Windows will now load the SafeMode with Networking.
- Press and hold both R key and Windows key.
- If done correctly, the Windows Run Box will show up.
- Type in the URL address, [product-url] in the Run dialog box and then tap Enter or click OK.
- After that, it will download the program. Wait for the download to finish and then open the launcher to install the program.
- Once the installation process is completed, run [product-code] to perform a full system scan.
- After the scan is completed click the “Fix, Clean & Optimize Now”button.
