Topi Virus Removal Guide (+Decrypt .topi files)

Topi Virus – Details

Topi is a destructive software application functioning as typical ransomware. Michael Gillespie, the popular malware researcher, very first found this new name in the DJVU ransomware family.

Topi was developed for the sole purpose to encrypt all popular file types. Rationally, as soon as the file encryption is effectively achieved, the users are not able to get access to them. Topi virus adds its own “.topi” to all the encrypted files. For example, the file “price_list.xls”, once modified by Topi, will be titled as “price_list.xls.topi”. As soon as the file encryption is accomplished, Topi puts its own distinct text file (_readme.txt) into all the folders that keep the encrypted files.

The alert stated by document requesting for the random os extremely comparable to the notifications offered by other ransomware hazards coming from the DJVU family. The caution essentially indicates that the files have been secured and the only option to get access to it is to use a distinct standalone key. Regretfully, this declaration is definitely true.

The approach to secure the files used by Topi is not totally investigated. However, there is no doubt that each computer system owner may be issued a special decryption key, which is definitely distinct. It is very difficult to recuperate the information without the proper key in place.

“Don’t worry, you can return all your files!”, from text file message:

Don't worry, you can return all your files! virus

One more peculiarity of the Topi infection is that the users are unable to get access to the key. The decrypting key is hosted on an unique server under the complete control by the criminals who have actually launched the Topi infection into the web. In order to obtain the key and restore the crucial data, the users are informed to contact the scams via e-mail or by telegram and to pay the ransom in the amount of $980.

The message likewise says that individuals must get in touch with the Topi authors within 72 hours upon the minute of the information encryption. The alert suggests that by doing so individuals will acquire a 50% discount rate, for that reason, the ransom amount 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 criminals will keep their pledges, so they might not care at all what the victims feel about the encryption, even when the amount of the ransom is gotten into their accounts. For this reason, paying ransom often does not lead to an effective healing. So, the users may simply lose their money for absolutely nothing.

Similarly, we advise you not to call the frauds as they advise. Do not transfer loan into their wallets. There are no applications that might break the Topi ransomware or restore the data at no charge. Therefore, the only correct choice is to bring back the information from possible backups (if offered).

Virus Summary

NameTopi Ransomware
File Extensiontopi
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 .topi extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsNosu, Kodc, Redl
Removal Tool   GridinSoft Anti-Malware

Do not forget that the Internet is now filled with infections similar to the Topi ransomware. For instance, this particular threat is essentially identical to Brusaf and other ransomware-type infections. These harmful utilities have actually been established in order to secure the crucial information and reveal the need for the users to pay the ransom. All these infections utilize the identical algorithm to create the specific key for effective information decryption.

Unless the Topi ransomware is still under the development process or has actually got some concealed bugs, it is not possible to bring back the information manually. Hence, the only working service to prevent the loss of your important information is to routinely keep up-to-date backups of all your vital documents.

Another essential piece of suggestions is to save the backups on special storage not linked to your main PC. For example, you may store it on the USB Flash Drive, or some external hard disk drive, or by using the cloud data storage services. Keeping the backups on your regular drive is very risky, since the backup may likewise be secured by the Topi virus.

Leakages for the Topi ransomware attack.

Topi utilizes many paths to penetrate the vulnerable computers. It is not specific what particular approach was utilized in your case, nevertheless, the invasion may occur via the following channels:

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

There are times when the Topi ransomware might camouflage itself as some genuine application, for instance, through the misleading notifies demanding setup of some software application upgrade. This is the most common trick utilized by the frauds to inject the Topi infection files into the system. By doing this users partly participate in its installation, without clearly understanding the risk.

In addition, the frauds may send out unsolicited spam email with challenging informs motivating individuals to open suspicious accessories or click some download links, for example, those encouraging individuals to open certain images, text files, tax files and other information.

No doubt, opening these files or clicking on the destructive links might basically harm the system. Fake Adobe Flash Player update notifications may lead to the Topi ransomware infiltration. Similarly, downloading the cracked software might additionally include the ransomware installer. The last however not the least, installation of Topi may occur through some Trojan horses that may be installed stealthily into the system and without the user’s direct permission and even consent.

Avoiding the Topi ransomware injection.

Naturally, there is no outright guarantee that your computer will be constantly devoid of any malware attacks, nevertheless, we wish to share some useful pointers with you to make it more secure. Make certain to pay extremely attention while searching the web and particularly while downloading cost-free programs. Do not open any suspicious email accessories, especially if the sender is not understood to you.

Do not forget that particular freeware installer may also contain some other extra apps in the package. These additional applications might be extremely harmful. It is of utmost importance to keep your anti-virus software application and your os in basic to be always effectively upgraded.

It is quite rational that downloading cracked apps is unlawful, nevertheless, additionally, such unapproved software usage may also bring major damage to your computer. Hence, do not download any cracked programs. Plus, the fact that your existing anti-virus did not protect the system from the Topi ransomware is a good reason for you to reconsider your options and switch to another program that can render the securing functions on a better level.

Below please find the quotation from the Topi 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 “.topi” extension added by the virus:”

Topi Ransomware - encrypt files with .topi extension

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

1.Download GridinSoft Anti-Malware.

You can get 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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About 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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  1. i am unable recover the .topi extension files, i tried everything i got help from internet not work out yet. please suggest

  2. tbm acbei de ser infectado e nao consigo resolver esse .topi

  3. The current version of decryptor works only on old variants. Is there another way on how to decrypt the files?

  4. i can not decrypt file using this tool please help any other way to decrypt this files
    File: D:\solo\rejected reason.jpg.topi
    No key for New Variant online ID: 2J8fDIqrdzd2PFjmB9miGQ5DOX5hwfvo7Jcbf0Y5
    Notice: this ID appears to be an online ID, decryption is impossible

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