Remove .BI_D Files Virus (LockCrypt Ransomware) + Restore Data

Gergana Ivanova

Gergana has completed a bachelor degree in Marketing from the University of National and World Economy. She has been with the STF team for three years, researching malware and reporting on the latest infections. She believes that in times of constantly evolving dependency of network connected technologies, people should spread the word not the war.

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This article provides information about a data locker ransomware dubbed .BI_D files virus that encrypts important files and demands a ransom payment. By the end of it, you will know how to remove the threat and how to restore .BI_D files.

The .BI_D files virus is a new variant of the LockCrypt ransomware. Its primary goal is to encrypt specific files stored on your computer and then ask you to pay a ransom for a decryption key that could revert back their code. The virus sets the .BI_D file extension to all encrypted files. A ransom note with information on how to pay the ransom is likely to appear on PC screen after encryption. If your computer has been infected by the .BI_D files virus, we advise you to read this article to learn more about this malware and then follow a step-by-step removal.

Threat Summary

Name	.BI_D Files Virus
Type	Ransomware, Cryptovirus
Short Description	A data locker ransomware that utilizes strong cihper algorithm to encrypt files stored on the infected computer. Then it demands a ransom for decryption solution.
Symptoms	Important files are locked and renamed with specific extension. They remain unusable until a ransom is paid.
Distribution Method	Spam Emails, Email Attachments
Detection Tool	See If Your System Has Been Affected by .BI_D Files Virus Download Malware Removal Tool
User Experience	Join Our Forum to Discuss .BI_D Files Virus.
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.

.BI_D Files Virus – Distribution

The infection with .BI_D files virus happens after its payload is started on the system. There are several methods known to be possibly used for its distribution. The most common one is via email spam messages that pose as legitimate companies, trustworthy websites, and governmental institutions. Such messages provide malicious file attachments and links to compromised web pages. The text is likely to provoke you to download and open an attached file or click and visit the presented web page. And in case that you do one of these actions you grant the ransomware access to your system unintentionally.

Another possible spread technique regards the installers of various freeware apps. Free apps are preferred by users. So malicious intenders often incorporate their malware into the installers of such apps and trick users into infecting their systems with it.

.BI_D Files Virus – Overview

The .BI_D files virus is reported to be a new variant of the LockCrypt ransomware. It is a threat that sneaks into computer systems with the primary purpose to corrupt files that store important information.

Before it triggers its built-in encryption module .BI_D files virus plagues various essential system settings to remain undetected by running security measures and ensure its persistent presence.

The infection process begins after the ransomware payload is started on the system. As the code of the payload may not be designed to complete the attack till its end, it may create additional malicious files and store them in the following folders:

• %AppData%
• %Local%
• %LocalLow%
• %Roaming%
• %Temp%
• %Windows%

Some of the malicious files are likely to access the Registry Editor – a database that stores information about all essential system settings. Run and RunOnce are among the sub-keys that are often affected by ransomware infections. This could be explained by the fact that they keep info about all processes that need to start on each system load. By exploiting their functionalities .BI_D files virus could automatically execute its malicious files whenever the system is started.

At the end of the attack it drops a ransom note file called Restore Files.txt. When it appears on the PC screen victims could see the following text:

Important !!!
Your personal id – E3pgw1ofS2
Warning: all your files are infected with an unknown virus.
To decrypt your files, you need to contact at [email protected]
The decoder card is received by bitcoin.
You can buy bitcoins from the following links://blockchain.info/wallet
Do not try to restore files your self, this will lead to the loss of files forever
GUARANTEES!!!
You can send us 2-3 encoded files.
And attach to the letter a file from the folder c:\Windows\DECODE.KEY for testing, we will return them to you for FREE

.BI_D Files Virus – Encryption Process

It is known that this new version of LockCrypt ransomware is utilizing a combination of two highly complex cipher algorithms to encrypt target files. With the help of AES-256 and RSA-2048 .BI_D files virus transforms the original code of predefined types of files and then generates a unique decryption key. As the threat belongs to LockCrypt ransomware family it is likely to encrypt all files that have one of the following extensions:

→.incpas, .mp4, .pab, .st6, .sas7bdat, .wmv, .backup, .drf, .ibank, .3ds, .odg, .cer, .tif, .cs, .dotx, .7z, .png, .bak, .ibz, .db3, .pbl, .3fr, .dxf, .nk2, .bkp, .mdf, .svg, .xlm, .3dm, .pct, .java, .pot, .sxi, .ibd, .sxw, .pspimage, .ppt, .kbx, .ppsm, .ndd, .txt, .pdb, .say, .backupdb, .fla, .swf, .asx, .accdt, .mp3, .ycbcra, .erf, .cr2, .pfx, .potx, .qby, .sqlite, .blend, .class, .pat, .odp, .gray, .qbw, .tib, .thm, .htm, .mos, .rm, .key, .std, .tlg, .lua, .pst, .sqlitedb, .grey, .cdr4, .dc2, .ce1, .ps, .tex, .eml, .xlam, .pages, .st8, .jar, .st7, .potm, .sdf, .db-journal, .pcd, .aspx, .rwl, .kpdx, .fmb, .xlr, .gry, .kc2, .oil, .moneywell, .xlk, .sti, .accdr, .oth, .c, .xml, .nd, .mdb, .pem, .erbsql, .bpw, .ffd, .ost, .pptm, .dwg, .zip, .qbm, .cdx, .des, .dng, .pdd, .cfp, .nyf, .cgm, .sldm, .xla, .odf, .raf, .crw, .mef, .raw, .x11, .nsd, .fff, .design, .dcs, .ptx, .al, .ns2, .bik, .back, .accdb, .nwb, .cpi, .ads, .odt, .sqlite3, .docm, .drw, .pl, .nx2, .fpx, .rdb, .otp, .msg, .accde, .agdl, .php, .csv, .py, .rtf, .ach, .sda, .ddd, .asf, .dotm, .cmt, .h, .hbk, .xlsx, .s3db, .tga, .wav, .iif, .dxb, .sql, .db, .sd0, .bgt, .djvu, .jpg, .doc, .craw, .mpg, .sxd, .kdc, .jpeg, .psafe3, .flac, .dtd, .act, .qba, .vob, .cdrw, .eps, .bkf, .mdc, .rar, .mov, .cdf, .m4v, .ab4, .bank, .pps, .cib, .dot, .dgc, .exf, .flv, .xlsb, .ddrw, .adb, .srw, .plc, .csh, .xls, .fxg, .otg, .pas, .xlt, .indd, .rwz, .xltx, .apj, .stw, .xltm, .orf, .ott, .qbb, .max, .cls, .obj, .docx, .dcr, .cdr3, .qbx, .pdf, .nef, .ots, .srt, .ddoc, .rat, .phtml, .m, .dbx, .nxl, .avi, .p12, .awg, .dbf, .ns3, .mmw, .prf, .wallet, .rw2, .jin, .odc, .qbr, .ppsx, .ns4, .wpd, .wps, .nsh, .dxg, .fhd, .dac, .wb2, .nrw, .odb, .ait, .jpe, .odm, .sldx, .fdb, .acr, .war, .oab, .sxc, .cpp, .r3d, .hpp, .asm, .st5, .stx, .xis, .dds, .xlsm, .p7c, .cdr5, .3g2, .mrw, .sr2, .html, .cdr, .idx, .st4, .bdb, .kdbx, .nsg, .der, .ods, .myd, .nop, .ppam, .pptx, .yuv, .xlw, .mfw, .nsf, .csl, .php5, .p7b, .crt, .asp, .srf, .jsp, .cdr6, .sxm, .iiq, .3gp, .ce2, .arw, .bay, .ai, .sxg, .psd, .3pr, .fh, .pef, .x3f, .sik, .bpp, .vmdk, .spi, .bup, .cvt, .bb, .fkc, .tjl, .dbk, .swp, .fb, .vib, .dtb, .bke, .old, .bkc, .jou, .rpb, .abk, .sav, .bkn, .tbk, .fbw, .vrb, .spf, .bk, .sbk, .umb, .ac, .vbk, .wbk, .mbk

After encryption corrupted files have two extensions appended at the end of their names. First one is associated with the ID number given to each infected users so it is unique. The other one is fixed and it is .BI_D. Eventually, the pattern used for renaming encrypted files is .id-.BI_D.

For now, security researchers find its decryption impossible. But don’t even think to rush into paying the ransom to hackers. The analysis of .BI_ID files virus’s samples reveal the fact that if the ransomware is not running in an admin system mode it fails to save the specific decryption key. This means that even hackers may not have a working decryption solution. So if you want to prevent being tricked once again make sure to try all you can do by yourself before considering a ransom payment.

Remove .BI_D Files Virus and Restore Data

The removal of the so-called .BI_D files virus demands a bit of technical experience and ability to recognize characteristics of malware files. And there is no doubt that you should remove this nasty threat from the infected PC as soon as you detect it. Below you could find how to do it step by step. Beware that ransomware has highly complex code that could plague not only your files but your whole system. So as recommended by security researchers you need to utilize an advanced anti-malware tool for its complete removal. Such tool will keep your system protected against devastating threats like .BI_D files virus as well as all other kinds of malware in future.

After you remove the ransomware make sure to check the “Restore Files” step listed in the guide below. But before you take any further actions, don’t forget to back up all encrypted files to an external drive in order to prevent their irreversible loss.

Note! Your computer system may be affected by .BI_D Files Virus and other threats.
Scan Your PC with SpyHunter
SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as .BI_D Files Virus.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.

To remove .BI_D Files Virus follow these steps:

1. Boot Your PC In Safe Mode to isolate and remove .BI_D Files Virus files and objects

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!

We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria

Boot Your PC Into Safe Mode

1. For Windows XP, Vista and 7. 2. For Windows 8, 8.1 and 10. Fix registry entries created by malware and PUPs on your PC.

For Windows XP, Vista and 7 systems:

1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
2. Select one of the two options provided below:

– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.

– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.

3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.

4. Log on to your computer using your administrator account

While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.

Step 1: Open up the Start Menu.

Step 2: Click on the Power button (for Windows 8 it is the little arrow next to the “Shut Down” button) and whilst holding down “Shift” click on Restart.

Step 3: After reboot, a blue menu with options will appear. From them you should choose Troubleshoot.

Step 4: You will see the Troubleshoot menu. From this menu choose Advanced Options.

Step 5: After the Advanced Options menu appears, click on Startup Settings.

Step 6: From the Startup Settings menu, click on Restart.

Step 7: A menu will appear upon reboot. You can choose any of the three Safe Mode options by pressing its corresponding number and the machine will restart.

Some malicious scripts may modify the registry entries on your computer to change different settings. This is why cleaning your Windows Registry Database is recommended. Since the tutorial on how to do this is a bit long and tampering with registries could damage your computer if not done properly you should refer and follow our instructive article about fixing registry entries, especially if you are unexperienced in that area.

2. Find files created by .BI_D Files Virus on your PC

Find files created by .BI_D Files Virus

1. For Windows 8, 8.1 and 10. 2. For Windows XP, Vista, and 7.

For Newer Windows Operating Systems

Step 1:

On your keyboard press  + R and write explorer.exe in the Run text box and then click on the Ok button.

Step 2:

Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.

Step 3:

Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:

N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.

For Older Windows Operating Systems

In older Windows OS’s the conventional approach should be the effective one:

Step 1:

Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.

Step 2:

After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.

Step 3:

After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.

Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.

Use SpyHunter to scan for malware and unwanted programs

3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool

Scan your PC and Remove .BI_D Files Virus with SpyHunter Anti-Malware Tool and back up your data

1. Install SpyHunter to scan for .BI_D Files Virus and remove them.2. Scan with SpyHunter, Detect and Remove .BI_D Files Virus. Back up your data to secure it from malware in the future.

Step 1: Click on the “Download” button to proceed to SpyHunter’s download page.

Download

Malware Removal Tool

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.

Step 2: Guide yourself by the download instructions provided for each browser.

Step 3: After you have installed SpyHunter, wait for it to update automatically.

Step 1: After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.

Step 2: After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.

Step 3: If any threats have been removed, it is highly recommended to restart your PC.

Back up your data to secure it against attacks in the future

IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats. We recommend you to read more about it and to download SOS Online Backup .

SOS Online Backup

4. Try to Restore files encrypted by .BI_D Files Virus

Try to Restore Files Encrypted by .BI_D Files Virus

Ransomware infections and .BI_D Files Virus aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested several alternative methods that may help you go around direct decryption and try to restore your files. Bear in mind that these methods may not be 100% effective but may also help you a little or a lot in different situations.

Method 1: Scanning your drive’s sectors by using Data Recovery software.
Another method for restoring your files is by trying to bring back your files via data recovery software. Here are some suggestions for preferred data recovery software solutions:

• Stellar Phoenix Data Recovery Technicians License(Pro version with more features)
• Stellar Phoenix Windows Data Recovery
• Stellar Phoenix Photo Recovery

Method 2: Trying Kaspersky and EmsiSoft’s decryptors.
If the first method does not work, we suggest trying to use decryptors for other ransomware viruses, in case your virus is a variant of them. The two primary developers of decryptors are Kaspersky and EmsiSoft, links to which we have provided below:

• Kaspersky Decryptors
• Emsisoft Decryptors

Method 3: Using Shadow Explorer

To restore your data in case you have backup set up, it is important to check for Volume Shadow Copies, if ransomware has not deleted them, in Windows using the below software:

• Shadow Explorer

Method 4: Finding the decryption key while the cryptovirus sends it over a network via a sniffing tool.

Another way to decrypt the files is by using a Network Sniffer to get the encryption key, while files are encrypted on your system. A Network Sniffer is a program and/or device monitoring data traveling over a network, such as its internet traffic and internet packets. If you have a sniffer set before the attack happened you might get information about the decryption key. See how-to instructions below:

Instructions on How to Find Decryption Key for Files Encrypted By Ransowmare

Gergana Ivanova

Gergana has completed a bachelor degree in Marketing from the University of National and World Economy. She has been with the STF team for three years, researching malware and reporting on the latest infections. She believes that in times of constantly evolving dependency of network connected technologies, people should spread the word not the war.

More Posts

Follow Me:

Gergana Ivanova

Gergana has completed a bachelor degree in Marketing from the University of National and World Economy. She has been with the STF team for three years, researching malware and reporting on the latest infections. She believes that in times of constantly evolving dependency of network connected technologies, people should spread the word not the war.

More Posts

Follow Me: