What is Bora ransomware? And how does it implement its attack?

bora ransomware

Bora ransomware is one of the file-encrypting threats discovered in the first week of October 2019. As per the analysis done by security experts, it seems that this new crypto-malware is a new variant of the STOP/Djvu ransomware group. Its corrupted files can be recognized by the .bora extension appended at the end of the affected files’ names.

Once Bora ransomware is activated on a targeted system, it adds more malicious files to help it execute its attack – some of which are created by the ransomware itself while others are downloaded from its Command and Control server. After it successfully drops these files in the essential Windows system folders, it might also create and alter some Registry entries so it can run on every system startup. Following the modifications in the registry, Bora ransomware will scan the entire computer drive to look for files to encrypt such as:

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

Once it is done encrypting the targeted files, Bora ransomware adds a “.bora” suffix to every encrypted file and drops a ransom note named _readme.txt. Here’s the content of the ransom note:

“ATTENTION!
Don’t worry, you can return all your files!
All your files like photos, databases, documents, and other important are encrypted with the strongest encryption and unique key.
The only method of recovering files is to purchase a decrypt tool and unique key for you.
This software will decrypt all your encrypted files.
What guarantees do you have?
You can send one of your encrypted files from your PC and we decrypt it for free.
But we can decrypt only 1 file for free. The file must not contain valuable information.
You can get and look video overview decrypt tool:
https://we.tl/t-NrkxzoMm4o
The price of the private key and decrypt software is $980.
Discount 50% available if you contact us first 72 hours, that’s the price for you is $490.
Please note that you’ll never restore your data without payment.
Check your e-mail “Spam” or “Junk” folder if you don’t get an answer for more than 6 hours.

To get this software you need writes on our e-mail:
[email protected]

Reserve an e-mail address to contact us:
[email protected]

How does Bora ransomware proliferate?

Variants of STOP/Djvu ransomware continues to proliferate still using malicious spam email campaign, including Bora ransomware. These malware-laden emails contain some corrupted files used to install the ransomware in the system. Such files might be a document with macro-scripts. Thus, you need to beware of these kinds of emails and steer clear of any suspicious-looking ones.
To effectively eliminate Bora ransomware from your PC, make sure to follow the removal instructions below.

Step_1: First, you have to stop the malicious process of Bora ransomware by opening the Task Manager. To do that, simply tap Ctrl + Shift + Esc keys on your keyboard.

Step_2: Under the Task Manager, switch to the Processes tab and find any suspicious-looking process that takes up most of your CPU’s resources and is most likely related to Bora ransomware.

Step_3: After that, close the Task Manager.

Step_4: Tap Win + R, type in appwiz.cpl and click OK or tap Enter to open Programs and Features under Control Panel.

Step_5: Under the list of installed programs, look for Bora ransomware or anything similar and then uninstall it.

Step_6: Next, close Control Panel and tap Win + E keys to launch File Explorer.

Step_7: Navigate to the following locations below and look for Bora ransomware’s malicious components such as _readme.txt, and [random].exe and other suspicious files, then delete all of them.

  • %TEMP%
  • %WINDIR%\System32\Tasks
  • %APPDATA%\Microsoft\Windows\Templates\
  • %USERPROFILE%\Downloads
  • %USERPROFILE%\Desktop

Step_8: 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 trouble and time, you can just use Restoro, 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_9: Tap Win + R to open Run and then type in Regedit in the field and tap enter to pull up Windows Registry.

Step_10: Navigate to the following path:

  • HKEY_CURRENT_USER\Control Panel\Desktop\
  • HKEY_USERS\.DEFAULT\Control Panel\Desktop\
  • 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

Step_11: Delete the registry keys and sub-keys created by Bora ransomware.

Step_12: Close the Registry Editor and empty the Recycle Bin.

Try to recover your encrypted files using the Shadow Volume copies

Restoring your encrypted files using Windows Previous Versions feature will only be effective if Bora 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.

Congratulations, you have just removed Bora Ransomware Crypto-Malware in Windows 10 all by yourself. If you would like to read more helpful articles and tips about various software and hardware visit fixmypcfree.com daily.

Now that’s how you remove Bora Ransomware Crypto-Malware in Windows 10 on a computer. On the other hand, if your computer is going through some system-related issues that have to get fixed, there is a one-click solution known as Restoro you could check out to resolve them.

This program is a useful tool that could repair corrupted registries and optimize your PC’s overall performance. Aside from that, it also cleans out your computer for any junk or corrupted files that help you eliminate any unwanted files from your system. This is basically a solution that’s within your grasp with just a click. It’s easy to use as it is user-friendly. For a complete set of instructions in downloading and using it, refer to the steps below

Perform a full system scan using Restoro. To do so, follow the instructions below.

  1. Download and install Restoro from the official site.
  2. Once the installation process is completed, run Restoro to perform a full system scan.
    restoro laptop1
  3. After the scan is completed click the “Start Repair” button.
    restoro laptop2
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