Djvu VirusRansomwareRemoval Guide

Zobm Virus Removal Guide (+Decrypt .zobm files)

Zobm – Ransomware

Zobm is a destructive software application working as common ransomware. Michael Gillespie, the widely known malware researcher, very first found this new name in the DJVU ransomware family.

Zobm was developed for the sole function to encrypt all popular file types. Realistically, as soon as the file encryption is effectively accomplished, the users are unable to get access to them. Zobm virus adds its own “.zobm” to all the encrypted data. For instance, the file “price_list.xls”, as soon as modified by Zobm, will be entitled as “price_list.xls.zobm”. As soon as the encryption is achieved, Zobm puts its own distinct text file (_readme.txt) into all the folders that store the encrypted files.

The message mentioned by _readme.txt requesting for the random os very comparable to the notices given by other ransomware risks belonging to the DJVU family. The warning generally shows that the data has been secured and the only option to get access to it is to use a distinct standalone key. Regretfully, this statement is definitely true.

The technique to encrypt the files used by Zobm is not totally researched. Nevertheless, there is no doubt that each computer system owner might be released a special decryption key, which is definitely distinct. It is exceptionally tough to recover the data without the suitable key in location.

“Don’t worry, you can return all your files!”, from _readme.txt message:

message from Zobm virus

One more peculiarity of the Zobm virus is that the users are unable to get access to the key. The decrypting key is hosted on an unique server under the total control by the scoundrels who have actually released the Zobm ransomware into the internet. In order to obtain the key and bring back the important data, the users are informed to get in touch with the scams via email or by telegram and to pay the ransom in the quantity of $980.

The message also says that the people must contact the Zobm authors within 72 hours upon the minute of the information encryption. The alert indicates that by doing so individuals will obtain a 50% discount, for that reason, the ransom quantity falls to $490.

No matter what the quantity of the ransom is, we strongly recommend that you do not pay the ransom. There is no assurance that these online scoundrels will keep their pledges, so they might not care at all what the victims feel about the file encryption, even when the amount of the ransom is received into their accounts. For this reason, paying ransom often does not result in an effective recovery. So, the users might merely lose their money for nothing.

Similarly, we urge you not to contact the scams as they instruct. Do not move cash into their wallets. There are no applications that could crack the Zobm ransomware or bring back the data for free. For that reason, the only appropriate decision is to restore the information from possible backups (if available).

Virus Summary

NameZobm Ransomware
File Extensionzobm
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .zobm extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsRote, Kodg, Mbed
Removal Tool   GridinSoft Anti-Malware

Do not forget that the Internet is now filled with infections comparable to the Zobm virus. For instance, this particular hazard is basically similar to Brusaf and other ransomware-type infections. These harmful utilities have been developed in order to secure the important data and reveal the need for the users to pay the ransom. All these infections utilize the identical algorithm to produce the particular key for effective information decryption.

Unless the Zobm ransomware is still under the development process or has got some concealed bugs, it is not possible to bring back the data by hand. Hence, the only working service to avoid the loss of your crucial data is to routinely preserve current backups of all your vital data.

Another crucial piece of advice is to keep the backups on unique storage not connected to your main computer. For example, you may keep it on the USB Flash Drive, or some external hard disk, or by using the cloud data storage services. Keeping the backups on your regular drive is extremely risky, because the backup may also be secured by the Zobm virus.

Leaks for the Zobm ransomware attack.

Zobm utilizes lots of paths to infiltrate the susceptible computer systems. It is not specific what particular method was utilized in your case, nevertheless, the intrusion might occur through the following channels:

  • bundling with third-party programs, mainly free software;
  • spam e-mails from the unknown senders;
  • sites providing complimentary hosting;
  • P2P (peer-to-peer) torrent software.

There are times when the Zobm virus may disguise itself as some real application, for instance, through the deceptive informs demanding setup of some software update. This is the most common trick utilized by the frauds to inject the Zobm infection files into the system. This way users partially take part in its setup, without plainly comprehending the risk.

Additionally, the frauds may send unsolicited spam email with challenging signals encouraging individuals to open suspicious attachments or click on some download links, for example, those motivating the people to open certain images, text files, tax files and other information.

No doubt, opening these files or clicking the harmful links might essentially harm the system. Fake Media Player update notifications may cause the Zobm ransomware seepage. Similarly, downloading the broken software application might furthermore include the ransomware installer. The last but not the least, setup of Zobm may happen through some Trojan horses that may be installed stealthily into the system and without the user’s direct approval and even consent.

Avoiding the Zobm ransom virus injection.

Of course, there is no absolute warranty that your computer system will be always without any malware attacks, nevertheless, we wish to share some helpful tips with you to make it more secure. Make certain to pay extremely close attention while browsing the web and specifically while downloading cost-free programs. Do not open any dubious e-mail attachments, particularly if the sender is not known to you.

Do not forget that particular freeware installer might also consist of some other additional apps in the package. These additional applications might be very harmful. It is of utmost value to keep your anti-virus software application and your os in general to be always effectively updated.

It is rather sensible that downloading cracked software is illegal, nevertheless, in addition, such unauthorized apps usage may also bring severe damage to your computer. For this reason, do not download any cracked programs. Plus, the truth that your present anti-virus did not safeguard the system from the Zobm ransomware is an excellent factor for you to reevaluate your options and switch to another program that can render the securing functions on a much better level.

Below please find the quotation from the Zobm text file:

 Don't worry, you can return all your files!
 All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
 The only method of recovering files is to purchase decrypt tool and unique key for you.
 This software will decrypt all your encrypted files.
 What guarantees you have?
 You can send one of your encrypted file from your PC and we decrypt it for free.
 But we can decrypt only 1 file for free. File must not contain valuable information.
 You can get and look video overview decrypt tool:
 Price of private key and decrypt software is $980.
 Discount 50% available if you contact us first 72 hours, that's 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 answer more than 6 hours.
 To get this software you need write on our e-mail:
 Reserve e-mail address to contact us: 

 Our Telegram account:

Screenshot of files with “.zobm” extension added by the ransomware:”

Zobm Ransomware - encrypt files with .zobm extension

Use GridinSoft Anti-Malware to remove Zobm ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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