.arrow Files Virus (Dharma Ransomware) – Remove and Restore Files

.arrow Files Virus (Dharma Ransomware) – Remove and Restore Files

This article has been created in order to help you by showing you how to remove the latest variant of Dharma ransomware and show you how to restore as many files encrypted with .arrow file extension without having to pay the ransom to the creators of this virus.

We have received reports from victims about a new ransomware variant of notorious and widespread virus, called Dharma ransomware. The variant, carries the .arrow file extension and it’s primary purpose is to perform various file encryption activities, using a strong combination of encryption algorithms and then leave the files with it’s distinctive extension, and ID tag and the e-mail for contact, like the following – Filename.id-{ID here}.[[email protected]].arrow. The virus drops a ransom note after it has rendered the files on the computers of it’s victims no longer able to opened, which aims to get the victims to make a ransom payment in order to get their files to work again. If your computer has become a victim of the .arrow variant of Dharma Ransomware, we recommend you to read this article. It will help you by showing you how you can delete this ransomware infection from your PC and how you can try and recover your encrypted files without having to pay ransom.

Threat Summary

Name.arrow Dharma Virus
TypeFile Encryption Ransomware
Short DescriptionA new iteration of the Dharma/CrySiS ransomware viruses. Utilizes sophisticated encryption mode on data of infected machines in order to extort victims to pay in BitCoin for their encrypted files..
SymptomsEncrypts documents, images, videos and other important files and adds the .arrow file suffix plus a unique ID and the e-mail to pay the ransom.
Distribution MethodSpam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by .arrow Dharma Virus

Download

Malware Removal Tool

User ExperienceJoin Our Forum to Discuss .arrow Dharma Virus.
Data Recovery ToolWindows 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.

.arrow Files Virus – How Does It Infect PC

The infection process of this ransom virus is done via a very often used method of infection – via spammed e-mails. Such messages have the goal to deceive victims into opening a malicious e-mail attachment by believing it is an actual legitimate file. The attachments sent, carrying the infection file of Dharma .arrow ransomware are very well designed and may appear as if they are asking you to download important documents from the likes of:

  • Invoices.
  • Banking statement documents.
  • Receipts of orders you may or may not have made.
  • Other suspiciously important files.

In addition to this, the e-mails that carry the infection files of this variant of Dharma ransomware, using the .arrow file extension are created as if they come from actual employees from big companies in order to increase trust, for example:

Besides via spammed e-mail messages, the latest variant of Dharma ransomware may also be spread via other methods as well, such as pretending to be legitimate setups of software, key generators, fixes or patches for games and other software license activation executables. If you look for software downloads online that are free, it is always a good idea to check the files beforehand by using online services like VirusTotal. If you download e-mails that are suspicious and are in .rar or .zip archives, we advise to check if the archives are malicious via free online archive scanners, like ZipeZip.

Dharma .arrow Files Virus – Malicious Activity

When the infection with the .arrow Dharma ransomware has already taken place on victims’ computers, the first activities the virus does are preoperational, like:

  • It will touch some of the Windows system files to obtain administrative privileges.
  • It will create mutexes.
  • Interacts with the Windows Registry Editor.
  • Deletes system backups as well as shadow volume copies.
  • Changes the wallpaper or automatically schedules the ransom note file to open on the victim’s desktop.

This only happens after Dharma .arrow ransomware has dropped it’s malicious files. They may reside in the following Windows folders:

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

In addition to dropping it’s malicious files, the .arrow variant of Dharma ransomware may also modify the Run and RunOnce Windows registry sub-keys in order to add entries in them that make it to automatically run each time you login. They have the following locations:

→ HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\

Those sub-keys are responsible to run programs on Windows Boot, so Dharma may also run programs that delete the shadow volume copies on system boot. The shadow volume copies are the only way to recover files via the Windows Recovery method, so the malware makes sure to run the following commands as an administrator to destroy any chances of you recovering your files this way:

→ bcdedit /set bootstatuspolicy ignoreallfailures
bcdedit /set recoveryenabled No
bcdedit /set {default} bootstatuspolicy ignoreallfailures
bcdedit /set {default} recoveryenabled No
vssadmin delete shadows /for={volume} /oldest /all /shadow={ID of the Shadow} /quiet

After completing it’s preparation actions, Dharma .arrow ransomware proceeds to encrypt the files on the infected computer.

Dharma .arrow Ransomware – Encryption Process

Similar to other CrySyS ransomware variants, the Dharma ransomware virus also uses the AES encryption algorithm in order to encrypt the files on the compromised computer. This results in various different types of activities that happen including the system freezing for brief period of time. The .arrow variant of Dharma performs a scan of the following types of files and if it detects a match, the malware encrypts them:

“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 .PRFEncodedFiles .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 .OBJR.BMP .DDS .GIF .JPG ..CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG”

After the .arrow file variant of Dharma ransomware has performed it’s encryption procedure, it immediately appends the .arrow file extension to the encrypted files by it, making them look like the following:

After encryption, the .arrow files cannot be opened via any software, because they key structure has been replaced with symbols from the AES encryption algorithm, used by Dharma ransomware, also known as Advanced Encryption Standard. It is a military-grade encryption, which if implemented properly can take years to decrypt if you do not know the decryption key. Despite this, security experts strongly advise victims not to pay, since you cannot trust that the crooks will recover your files and you should not finance the crooks into performing their malicious activities and spreading them further.

Remove Dharma Ransomware and Restore .arrow Encrypted Files

Since removing Dharma ransomware seems to be your best option, we advise you to follow the instructions down below in order to fully delete it. They are separated in manual and automatic removal methods which aim to help you to remove this variant of Dharma ransomware, based on how much experience you have with malware removal. Be advised that experts always recommend to use an advanced anti-malware software which if installed on your PC will automatically detect all malicious files and objects, created by the .arrow variant of Dharma ransomware and remove them.

If you want to recover your files without paying the ransom, do not worry and follow the alternative methods for file recovery down below in step “2. Restore files encrypted by .arrow Dharma Virus”. They are not 100% effective to restore all of your files, but thanks to them you may be able to recover some or even all of your data.

Note! Your computer system may be affected by .arrow Dharma 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 .arrow Dharma 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 .arrow Dharma Virus follow these steps:

1. Boot Your PC In Safe Mode to isolate and remove .arrow Dharma Virus files and objects
2. Find files created by .arrow Dharma Virus on your PC

Use SpyHunter to scan for malware and unwanted programs

3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool
4. Try to Restore files encrypted by .arrow Dharma Virus

Vencislav Krustev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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11 Comments

  1. santa

    Hi Vencislav,

    Recently our system has been compromised by the latest variant of this ransomware. We have been able to remove the virus, but up to know we have yet been able to decrypt the infected file. Our most important file is our sql database file, which contains our ERP database file. Can we engage on your service to restore / decrypt our file? Please let us know. Much appreciated. Thanks.

    Reply
    1. Vencislav Krustev (Post author)

      Hello, santa

      I do understand that your sql database file has been encoded. Be advised that the .arrow ransomware is a variant of Dharma ransomware. The first variant of the ransomware infection, containing the file extension .dharma was decryptable via the following decryption instructions:

      https://sensorstechforum.com/remove-dharma-ransomware-restore-dharma-encrypted-files/

      However, i’ll have you know that the nasty crooks who are behind this malware, have developed it into several new variants, including the .java file extension and the .arrow one, by which your enterprise system is most likely infected. The bad news here is while the Rakhni Decryptor by Kaspersky found on the link above worked for the .dharma files variant of Dharma ransomware, the new variants have a patch against which the decrypter may not be able to work. I do understand that databases are more complex in their nature, so I would suggest that you try to recover the ERP database file by scanning the SQL database file, by using a data recovery program. You can recover at least some of the ERP files, if you are lucky. Other than that, the .arrow ransomware uses not one but two encryption algorithms – RSA and AES and factorization of the private RSA key can be used to recover it, but for that you would require the public one as I have found out and described in this article:

      https://sensorstechforum.com/restore-files-encrypted-via-rsa-encryption-remove-cryptowall-and-other-ransomware-manually/

      Ofcourse, the instructions in this article are for a virus that was discovered a while back and even with a powerful computer, the factorization process can take ages. And if the virus uses the AES encryption algorithm as well, the task becomes from impossible to double impossible. So the best advise that I have for you is to follow the No more ransom project – https://www.nomoreransom.org/en/index.html and wait for a decryptor to be released, while in the meantime check up on different data recovery software which can assemble fragments of your encrypted database and recover it. Ofcourse, since the database is a file, which i am assuming is large, your chances are not high, but you might wanna check for specific data recovery software that is able to recover SQL databases. Furhtermore, please be advised to learn how to safely store your databases to prevent such occurances in the future:

      https://sensorstechforum.com/safely-store-your-important-files-and-protect-them-from-malware/

      Reply
  2. Bibhusan

    2018_01_28_200002_8749500.bak.id-28DCEA35.[[email protected]].arrow

    Can any one help me to dencrypt this file. Because this file was attacked from ransomware.

    Reply
    1. Jaco

      If you get decryptor please let me know aswell please

      Reply
  3. kishor

    So far none of the decrypt tools like rakini not included the .arrow codes

    AA_v3.5.exe.id-1C1201F3.[[email protected]].arrow

    Reply
  4. Dhiraj Prasad

    my all file converted in .arrow like db12009.bds.id-0674E739.[[email protected]].arrow. is it possible to recover them because widows not create shadow copy

    Reply
  5. Enrico

    L’ho preso anche io, come posso fare visto che non sono un espertone ed é Vista?
    Se lo faccio formattare poi é a posto?

    Reply
  6. Tony Chiu

    Is there decrypt tools for .arrow yet. please help

    Reply
    1. Milena Dimitrova

      Hi Tony,

      Unfortunately, there isn’t an official decrypter for this version of Dharma ransomware. You could however try the alternative options listed in this article.

      Reply
  7. Emilio

    Apparently we have a new variant of the virus, whose encrypted files ej. desktop.ini.id-BCBAE864.[[email protected]].arrow, can not be decrypted by the current tools.

    Reply
  8. Nodir

    Good day!

    Computer has catched virus and our files become like this name.exe.id-527F956E.[[email protected]].arrow what is the virus name its couse for example dr web sas that this is encoder 3953v4 but you say that is dharma
    And could this files be encrypted by some ways

    Thank you!

    Reply

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