Usam Virus Removal Guide (+Decrypt .usam files)

Usam Virus – Details

Usam is a malicious software application functioning as typical ransomware. Michael Gillespie, the well-known malware researcher, very first discovered this new name in the DJVU ransomware family.

Usam was created for the sole purpose to encrypt all popular file types. Rationally, as quickly as the file encryption is successfully accomplished, the users are not able to get access to them. Usam ransomware adds its own “.usam” to all the encrypted files. For example, the file “price_list.xls”, once crypted by Usam, will be titled as “price_list.xls.usam”. When the file encryption is achieved, Usam puts its own unique text file (_readme.txt) into all the folders that save the encrypted files.

The alert mentioned by document asking for the random os very comparable to the alerts provided by other ransomware risks belonging to the DJVU family. The warning essentially indicates that the information has been secured and the only option to get access to it is to use a distinct standalone key. Regretfully, this statement is absolutely real.

The approach to encrypt the files utilized by Usam is not totally researched. Nevertheless, there is no doubt that each computer system owner might be released an unique decryption key, which is absolutely special. It is very difficult to recover the data without the suitable type in location.

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

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

One more peculiarity of the Usam ransomware 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 released the Usam infection into the web. In order to obtain the key and restore the important information, the users are told to connect with the frauds through email or by telegram and to pay the ransom in the amount of $980.

The message likewise states that individuals should call the Usam authors within 72 hours upon the moment of the data encryption. The alert shows that by doing so individuals will get a 50% discount rate, therefore, the ransom amount drops down to $490.

No matter what the quantity of the ransom is, we highly advise that you do not pay the ransom. There is no warranty that these online scoundrels will keep their promises, so they may not care at all what the victims feel about the file encryption, even when the quantity of the ransom is received into their accounts. Hence, paying ransom typically does not lead to a successful recovery. So, the users might merely lose their money for absolutely nothing.

Similarly, we advise you not to call the scams as they instruct. Do not move loan into their wallets. There are no applications that could split the Usam ransomware or restore the information at no charge. For that reason, the only right choice is to bring back the data from possible backups (if offered).

Virus Summary

NameUsam Ransomware
File Extensionusam
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 .usam extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsNypd, Zwer, Kkll
Removal Tool   GridinSoft Anti-Malware

Do not forget that the Internet is now filled with infections comparable to the Usam ransomware. For example, this particular threat is essentially identical to Brusaf and other ransomware-type infections. These damaging utilities have been established in order to secure the essential data and express the need for the users to pay the ransom. All these infections use the identical algorithm to produce the particular key for effective files decryption.

Unless the Usam ransomware is still under the advancement procedure or has actually got some concealed bugs, it is not possible to bring back the information manually. Thus, the only working solution to prevent the loss of your crucial information is to routinely preserve current backups of all your crucial documents.

Another important piece of guidance is to store the backups on unique storage not connected to your primary computer. For example, you may store it on the USB Flash Drive, or some external hard disk, or by using the cloud data storage services. Keeping the backups on your routine drive is very risky, considering that the backup might likewise be secured by the Usam infection.

Leaks for the Usam ransomware attack.

Usam uses numerous courses to infiltrate the susceptible computer systems. It is not specific what specific technique was utilized in your case, however, the invasion may occur by means of the following channels:

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

There are times when the Usam virus may camouflage itself as some real application, for instance, through the deceptive alerts demanding installation of some software application update. This is the most common trick used by the scams to inject the Usam infection files into the system. In this manner users partially participate in its installation, without plainly comprehending the threat.

Additionally, the scams might send unsolicited spam e-mail with difficult informs motivating individuals to open dubious accessories or click on some download links, for instance, those motivating individuals to open particular pictures, text files, tax documents and other information.

No doubt, opening these files or clicking the harmful links may essentially damage the system. Fake Adobe Flash Player update alerts may result in the Usam ransomware seepage. Likewise, downloading the split software application might in addition include the ransomware installer. The last however not the least, installation of Usam may occur through some Trojan horses that may be set up stealthily into the system and without the user’s direct authorization or perhaps consent.

Preventing the Usam injection.

Obviously, there is no absolute assurance that your computer will be constantly devoid of any malware attacks, nevertheless, we want to share some helpful suggestions with you to make it safer. Make sure to pay very very close attention while searching the web and especially while downloading cost-free programs. Do not open any suspicious email attachments, specifically if the sender is not known to you.

Do not forget that certain freeware installer may likewise contain some other additional apps in the package. These extra applications may be extremely damaging. It is of utmost significance to keep your anti-virus software and your os in general to be constantly correctly updated.

It is rather sensible that downloading cracked apps is illegal, nevertheless, additionally, such unauthorized apps use might also bring severe damage to your computer. Thus, do not download any cracked programs. Plus, the truth that your existing anti-virus did not protect the system from the Usam ransomware is a good factor for you to reevaluate your options and change to another program that can render the safeguarding functions on a far better level.

Below please find the quotation from the Usam 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 “.usam” extension added by the virus:”

Usam Ransomware - encrypt files with .usam extension

Use GridinSoft Anti-Malware to remove Usam 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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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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