What is CryBrazil ransomware? And how does it execute its attack?
A new variant of CryBrazil ransomware has been released. Still called as “CryBrazil ransomware”, this file encrypting threat was recently spotted by security experts and has now returned with an even complex code compared to its predecessor. Once it manages to infect a computer, it initiates a series of changes in the computer. One of these changes concerned the Windows Registry where the crypto-malware creates and alters some registry keys and sub-keys to allow it to run on every system startup while some of these changes involve adding more malicious files into the computer that helps the crypto-malware from staying undetected. After the initial attack, CryBrazil ransomware will look for files with specific file types such as:
.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 still uses AES encryption algorithm in locking targeted files. Following data encryption, it appends the .crybrazil extension to the affected files and will change the desktop wallpaper of the infected PC. The new wallpaper contains the ransom note that states:
“Ele que é o palhaço, mas sou eu quem põe fogo no circo.
Todos os seus arquivos foram criptografados, para recuperá-los de volta entre em contato:
How is the malicious payload of CryBrazil ransomware disseminated?
The malicious payload of CryBrazil ransomware may also be disseminated via spam emails just like its previous version. That’s why you must take extra time in checking emails before you open them and download their attachments as it could be the malicious payload of ransomware threats like CryBrazil ransomware.
To successfully terminate CryBrazil ransomware from your computer, follow each one of the removal steps 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.
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_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.