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SATANA ransomware virus. How to remove? (Uninstall guide)

removal by Olivia Morelli - - | Type: Ransomware

Analysis of SATANA virus

If you happen to follow the recent IT news, you might encounter SATANA virus. It is one of the many malicious ransomware which is capable of encrypting personal information. Generally speaking, ransomware threats are highly profitable and relatively easy to develop. Regarding the current trends of rapidly emerging viruses of this kind, it seems that every person, who has at least obscure understanding about programming, can come up with a file-encrypting threat. Usually, hackers use other ransomware as a framework for the new releases. SATANA, for instance, is based on Petya and Mischa ransomware viruses and just like these malicious programs are designed to sneak into the computer and encrypt data. Of course, the virus victims have a choice. They can pay the ransomware creators around 0.5 BitCoin and receive the decryption key. Unfortunately, successful data recovery is a rare occurrence when dealing with such malicious programs. At the moment, SATANA removal is probably the best option you can go for. Choose Reimage or other reputable antivirus utility to remove this virus from the infected device.

An image of the SATANA virus ransom note

In comparison with its “siblings” – Petya and Mischa – SATANA malware operates in two distinctive modes. In the former case, it leaves a file with a small kernel which acts as a bootloader. Speaking of the second mode, it behaves as ordinary ransomware. This double-track way of operating enables the virus to strike a powerful blow to the operating system. Thus, getting rid of SATANA becomes a tricky task. After the virus gets into the system and activates itself, it leaves its file in %TEMP% folder. Later on, a window emerges asking the victim to let ynuthwo.exe be installed. The problem is that the message cannot be canceled unless he or she clicks “Yes.” The latter option enables the virus to write the malignant file at the beginning of the disk. Following this, the malware starts its misdeed by encrypting personal files.

In the meantime, the virus places the file with the contact information of SATANA ransomware in the registry of the operating system. Another peculiarity of this threat functions silently without triggering any windows errors, such as BSOD (“blue screen of death”). In fact, it waits for the system reboot. Once SATANA virus enters your computer, the names of the infected files are then changed to Gricakova@techemail.com_[original file name] and from this point on become inaccessible. !satana!.txt file containing file recovery instructions is also added to the infected folders.

In this ransom note, the victim is given a seven-day deadline to pay for the data. Every infected computer is given an individual ID and should send it to the indicated email (banetnatia(@) to receive the decryption key. After the specified time runs out, the criminals threaten to delete the decryption key which means that the encrypted files will be lost forever. What is also typical to this particular ransomware is that it alters the system’s settings as well. It changes the Master Boot Record settings and modifies them to load the ransomware at the system’s startup. This means that if you create some new files on your hard drive, they will most likely be encrypted the next time you reboot your computer.

After analysing the obtained samples, IT specialists suspect that the malware is still at the early stage of development. Since the dropper is enwrapped in FUD/crypter, IT experts were able to take a better look at the executable and the code strings. It enabled them to identify hackers’ goals. The obtained samples of the ransomware may help the experts come up with the decryption tool, until then, you should not let your guard down. Improve your security by installing the anti-spyware program. Undoubtedly, you must remove SATANA from your computer if you want to ensure the safety of your future data.

How can the virus invade my computer?

The cyber security experts warn that SATANA can infect your computer practically anywhere on the web. You can unknowingly install it on your device through fake software updates, download them on P2P networks or simply receive them in your email. The latter is the most common ransomware distribution technique. Your email provider filters malicious emails and places in the Spam folder. So, it is natural, that this catalog should be dealt with very carefully. Do not open emails if you do not recognize the sender. More importantly, refrain from downloading attachments added to such emails. The criminals will try to trick you by sending you supposed invoice information, online purchase receipt, speeding ticket, etc. So, remember to check the legitimacy of such emails before opening them.

Remove SATANA from the PC

If your computer has been infected with SATANA virus, you should not hesitate and remove it from your device immediately, because keeping it installed is a risk for your future files and your computer’s health. Use only the reputable antivirus utilities for that. We should remind you, though, that SATANA removal will not decrypt your data. You may need to use other data recovery software for this purpose. We recommend PhotoRec, R-Studio or Kaspersky virus-fighting utilities. Of course, a more guaranteed file recovery can be achieved by restoring data from backups. But if you do not have them, try the utilities above. If you are having trouble removing SATANA from your device, you can try decontaminating the virus using the instructions provided below this article.

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Manual SATANA virus Removal Guide:

Remove SATANA using Safe Mode with Networking

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove SATANA

    Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete SATANA removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove SATANA using System Restore

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of SATANA. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage and make sure that SATANA removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from SATANA and other ransomwares, use a reputable anti-spyware, such as Reimage, Plumbytes Anti-MalwareWebroot SecureAnywhere AntiVirus or Malwarebytes Anti Malware

About the author

Olivia Morelli
Olivia Morelli - Ransomware analyst

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Removal guides in other languages

  • Systweak Blog

    Getting backup is the best option to evade from paying ransom in any ransomware atteck.

  • Remus

    Does the cross help then?

  • Cloud

    It did not help it was not possible to return the files. ;(