Zwer – Ransomware
Zwer is a harmful software application functioning as typical ransomware. Michael Gillespie, the widely known malware researcher, very first discovered this new name in the DJVU ransomware family.
Zwer was created for the sole function to encrypt all popular file types. Logically, as soon as the file encryption is effectively achieved, the users are not able to get access to them. Zwer ransomware includes its own “.zwer” to all the encrypted data. For example, the file “price_list.xls”, as soon as modified by Zwer, will be entitled as “price_list.xls.zwer”. When the encryption is achieved, Zwer puts its own special text file (_readme.txt) into all the folders that keep the encrypted files.
The message mentioned by text file asking for the random os really comparable to the alerts given by other ransomware risks coming from the DJVU family. The caution basically indicates that the information has been encrypted and the only service to get access to it is to use a special standalone key. Regretfully, this statement is absolutely real.
The method to encrypt the files used by Zwer is not completely researched. However, there is no doubt that each computer system owner might be issued a special decryption key, which is definitely special. It is very tough to recover the information without the appropriate key in place.
“Don’t worry, you can return all your files!”, from _readme.txt message:
One more peculiarity of the Zwer infection is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the complete control by the crooks who have introduced the Zwer ransomware into the web. In order to acquire the key and restore the crucial information, the users are told to contact the frauds by means of e-mail or by telegram and to pay the ransom in the amount of $980.
The message also states that the people should call the Zwer authors within 72 hours upon the minute of the information file encryption. The alert indicates that by doing so individuals will obtain a 50% discount, for that reason, the ransom amount falls to $490.
No matter what the amount of the ransom is, we strongly advise that you do not pay the ransom. There is no assurance that these online scoundrels will keep their promises, 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 lead to an effective healing. So, the users might just lose their money for nothing.
Similarly, we prompt you not to get in touch with the frauds as they advise. Do not move cash into their wallets. There are no applications that could break the Zwer virus or restore the information at no cost. For that reason, the only proper choice is to restore the data from possible backups (if readily available).
|Short Description||The 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.|
|Symptoms||File 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 .zwer extension to all the files modified by it.|
|Distribution Method||Adware bundles and software cracks|
|Similar Infections||Kkll, Nlah, Zipe|
|Removal Tool||GridinSoft Anti-Malware|
Do not forget that the Web is now full of infections comparable to the Zwer ransomware. For instance, this specific danger is essentially similar to Brusaf and other ransomware-type infections. These destructive energies have been established in order to encrypt the crucial information and reveal the need for the users to pay the ransom. All these infections use the similar algorithm to produce the particular key for successful data decryption.
Unless the Zwer ransomware is still under the development procedure or has got some hidden bugs, it is not possible to bring back the information by hand. Thus, the only working option to prevent the loss of your crucial information is to routinely maintain updated backups of all your crucial files.
Another essential piece of recommendations is to save the backups on unique storage not linked to your primary computer. For instance, you might save it on the USB Flash Drive, or some external disk drive, or by using the cloud data storage services. Keeping the backups on your routine drive is extremely risky, since the backup may likewise be encrypted by the Zwer infection.
Leaks for the Zwer ransomware attack.
Zwer utilizes lots of courses to infiltrate the susceptible computer systems. It is not specific what specific method was utilized in your case, nevertheless, the invasion might take place by means of the following channels:
- bundling with third-party programs, mainly freeware;
- spam emails from the unidentified senders;
- websites providing complimentary hosting;
- P2P (peer-to-peer) torrent software.
There are times when the Zwer may disguise itself as some genuine application, for instance, through the deceptive notifies demanding setup of some software upgrade. This is the most common technique utilized by the scams to inject the Zwer ransomware files into the system. In this manner users partially participate in its installation, without clearly understanding the danger.
Moreover, the scams may send unsolicited spam e-mail with tricky signals encouraging the people to open suspicious attachments or click on some download links, for example, those motivating individuals to open particular photos, text files, tax files and other info.
No doubt, opening these files or clicking the harmful links may essentially harm the system. Fake Acrobat Reader upgrade notifications may cause the Zwer ransomware seepage. Similarly, downloading the split software application might furthermore contain the ransomware installer. The last however not the least, setup of Zwer might happen through some Trojan horses that may be set up stealthily into the system and without the user’s direct consent and even approval.
Preventing the Zwer ransomware attack.
Naturally, there is no absolute warranty that your computer will be constantly free of any malware attacks, nevertheless, we wish to share some useful pointers with you to make it safer. Make sure to pay really very close attention while browsing the web and specifically while getting cost-free programs. Do not open any suspicious email attachments, particularly if the sender is not understood to you.
Do not forget that certain freeware installer may likewise include some other additional apps in the bundle. These extra applications may be really destructive. It is of utmost value to keep your anti-virus software and your operating system in general to be constantly properly upgraded.
It is quite sensible that downloading pirated software is prohibited, however, additionally, such unapproved software application use might also bring major damage to your computer. Hence, do not download any split programs. Plus, the reality that your existing anti-virus did not protect the system from the Zwer ransomware is an excellent factor for you to reconsider your options and change to another program that can render the safeguarding functions on a much better level.
Below please find the quotation from the Zwer text file:
ATTENTION! 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: https://we.tl/t-2P5WrE5b9f 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: email@example.com Reserve e-mail address to contact us: firstname.lastname@example.org Our Telegram account: @datarestore
Screenshot of files with “.zwer” extension added by the virus:”
Use GridinSoft Anti-Malware to remove Zwer ransomware from your computer
1.Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
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.
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.
3. Press Install button for run GridinSoft Anti-Malware.
3.Once installed, GridinSoft Anti-Malware will automatically run.
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.
5. Click on “Clean Now”.
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