RansomwareRemoval Guide

Remove Artemis Virus (.[UltimateHelp@techmail.info].ultimate Files Ransomware) – Filecoder Ransomware

Artemis Virus – Details

The Artemis stands for a ransomware-type infection. The infection comes from the Filecoder ransomware family. Artemis was elaborated particularly to encrypt all major file types. As soon as the file is encrypted people are not able to use them. Artemis adds the “.[UltimateHelp@techmail.info].ultimate” extension for each file encrypted by it. For example, the file “myphoto.jpg“, once encrypted by Artemis, will be renamed into “myphoto.jpg.[UltimateHelp@techmail.info].ultimate“. As soon as the encryption is finished, Artemis places a special text file into every folder containing the encrypted data.

The message given by Artemis text file asking for the ransom is definitely the same as the statements given by other ransomware representatives belonging to the Filecoder type. It actually mentions that the info is encrypted which the only way to bring back it is to use a an unique decryption key. Unfortunately, this is absolutely true. The sort of cryptography mechanism applied by Artemis is still not properly examined. Still, it is absolutely certain that each victim might be given the specific decryption key, which is totally unique. It is difficult to bring back the files without the key available.

Another trick of Artemis is that the victims cannot gain access to the key. The key is saved on a specific server run by the frauds connected with Artemis ransomware. To get the key and recover the important info people have to pay the ransom.

However, irrespective of the asked for amount, people must stay away from paying the ransom virus. Cyber frauds are not fair, so they tend to entirely ignore what their victims feel about the problem, even when the payment reaches their pockets. This is why paying the ransom generally does not provide any positive result and people just lose their money for absolutely nothing.

We strongly encourage that you do not contact these crooks and definitely do not transfer money into their accounts. It is said to admit that there are no utilities able to crack Artemis ransomware and to recover the information data for free. Therefore, the just best decision is to recover the lost data from the available backup.

Virus Summary

NameArtemis Ransomware
File Extension.[UltimateHelp@techmail.info].ultimate
TypeRansomware
FamilyFilecoder
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 and RSA encryption algorithms. Once the encryption is completed, the ransomware adds its special [UltimateHelp@techmail.info].ultimate extension to all the files modified by it.
Distribution MethodSpam Emails, Email Attachments
Removal Tool   GridinSoft Anti-Malware

Remember that the world wide web is now overwhelmed with threats that look comparable to Artemis ransomware. Harmful programs of such kind are usually elaborated to encrypt important data and to state the demand before the user to pay the ransom. The peculiarity of all such ransomware threats is that all apply a similar algorithm to produce the special decryption key for information decryption.

Therefore, as long as the ransomware is still being developed or has some hidden bugs, manually recovering the information is simply not feasible. The only way to prevent the loss of your essential files is to frequently create backups of your important information.

Keep in mind that even if you create such backups, they need to be put into a special storage utility not connect to your main computer. You may use the USB Flash Drive or external hard disk drive for this purpose, or refer to the help of the cloud storage. If you keep your backup files on your common system they may be encrypted along with other files, so it’s certainly not a good storage place.

How did ransomware infect my PC?

There are numerous methods used by online scams to distribute Artemis ransom virus. Although it is uncertain how exactly Artemis injects your system, there are some leaks through which it may penetrate the system:

  • integration with third-party software application, especially freeware;
  • spam emails from unknown senders;
  • sites rendering free hosting services;
  • pirated peer-to-peer (P2P) downloads.

Frequently Artemis ransomware might exist as some legitimate software, for example, in the pop-ups advising users to implement some crucial software updates. This is the typical trick used by online scams to persuade people into downloading and installing Artemis infection manually, by means of their direct participation in the installation process.

Furthermore, the criminals might refer to different email spam tactics to inject destructive codes into PC. So, they may refer to to sending unsolicited spam e-mails with tricky notices promoting users to download the attachments or click on certain download links, for example, the ones motivating users to open some video, files, tax reports or invoices.

Needless to mention, opening such files or clicking on such dangerous links may badly damage the system. Fictitious Adobe Flash Player update informs may result in Artemis ransom injection. As for the cracked applications, these illegally downloaded programs may likewise contain malicious codes causing Artemis secret installation. Lastly, injection of Artemis may occur by ways of Trojans that privately get injected into the system and set up harmful tools without the user’s permission.

Is there any method to prevent the injection of Artemis ransomware?

Even though there is no 100% guarantee to avoid your PC from getting infected, there are some pieces of guidance we wish to share with with you. To start with, be very cautious when you surf the web and especially while downloading totally free programs. Keep away from opening suspicious email attachments, especially when the sender of the email is not familiar to you.

Bear in mind that some freeware installers may include other unwanted utilities in the bundle, so they may be harmful. Make sure that your current antivirus and your entire OS is always duly updated.

Obviously, downloading pirated software is prohibited and may result in vital damage to be made for your system. For this reason, stay away from downloading cracked software. You are also strongly advised to reconsider your existing security software and potentially change to another security solution that can render much better services of defending your PC.

Below please find the quotation from the Artemis text file:

=========================  

/$$$$$$                      /$$                               /$$          
/$$__  $$                   | $$                              |__/          
| $$  \\ $$  /$$$$$$  /$$$$$$    /$$$$$$  /$$$$$$/$$$$  /$$  /$$$$$$$
| $$$$$$$$ /$$__  $$|_  $$_/   /$$__  $$| $$_  $$_  $$| $$ /$$_____/
| $$__  $$| $$  \\__/  | $$    | $$$$$$$$| $$ \\ $$ \\ $$| $$|  $$$$$$
| $$  | $$| $$        | $$ /$$| $$_____/| $$ | $$ | $$| $$ \\____  $$
| $$  | $$| $$        |  $$$$/|  $$$$$$$| $$ | $$ | $$| $$ /$$$$$$$/
|__/  |__/|__/         \\___/   \\_______/|__/ |__/ |__/|__/|_______/

                        !!! All your files encrypted !!!

You Have to Pay For The Restore
To Decrypt (Restore) them send e-mail to this address: UltimateHelp@techmail.info
If we don\'t answer in 24h., send e-mail to this address: UltimateHelp@keemail.me
Your Unique ID : -

=========================

Screenshot of files with “.[UltimateHelp@techmail.info].ultimate” extension added by the ransomware:
Artemis Ransomware - encrypt files with .[UltimateHelp@techmail.info].ultimate extension

Use GridinSoft Anti-Malware to remove Artemis 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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