Easy step by step Gusau Ransomware removal instructions
Michael Gillespie discovered Gusau is another variant of Djvu/STOP ransomware. it encrypts almost all stored files on a computer making them inaccessible and then demands a ransom to be paid in order to make the files once again in their accessible condition. The encrypted files will receive .gusau extension. After encryption, the ransomware creates readme.txt file and drops its copies on each folder containing encrypted files.
The readme.txt file contains a ransom demanding message for the victims of the ransomware. According to this, victims require a unique decryption key to decrypt the encrypted files. Unfortunately this is true, Gusau encrypts data using an algorithm that generates unique decryption key individually for each victim. Deception of files without using the key is impossible. Problem is that, Cyber Criminals store the entire decryption key under some remote server with the intention to blackmail victims. In order to get the files, the victims are demanded to pay $980. The messages also states that the victims who contact the Cyber crooks within 72hours after the encryption will only have to give $490 (huge 50% discounts on the price of the decryptor). They are also offered to attach their 1 encrypted file who decryption is guarantee for free. This offer is provided by the Cyber criminals in order to make them believe that their decryption tool is really working. However, we highly recommend you not to pay ransom fee in any worst condition. The people behind the ransomware are not trusted. They will not provide the decryption tool even if the ransom payment is done. Use free decryption tool crated by Michael Gillespie. If this does not work, use existing backup for the files recovery.
How did the infection occur?
Ransomware viruses are mostly distributed via using spam email campaigns, fake cracking tools, fake software updating tools, untrustworthy software download sources, and Trojans. Spam email campaigns are used to design and deliver deceptive emails containing malicious attachments. Clicking on such attachments causes computer infections. Fake cracking tools infect computer instead of bypassing activation for paid software. Similar way, fake software updaters infect computer by tricking people to manually download/install malware rather than providing software update. Untrustworthy software download sources such as freeware installers, P2P file sharing networks, and free file hosting sites spread malware by presenting it as legit software. Trojans create backdoor for other viruses and so called chain infections.
Name: Gusau Ransomware
Extension use: .gusau
Ransom payment demanded: $980/$490
Symptoms: Files cannot be opened, and have some extension added to them. Ransom payment is demanded
Distribution methods: Spam email attachments, torrent websites, malicious ads
Damages: Possibly some password stealing Trojans or other malicious malware intrudes along with the ransomware
Removal: Use Spyhunter to remove Gusau Ransomware
How to prevent ransomware intrusion?
Use official websites and direct links for any software download. Avoid third party malware distribution sources as mentioned above. Think before clicking on any spam email attachments. Avoid using cracking tools which is illegal and often cause infection. Fake updating tools should also be avoided. For betterment, use Spyhunter or other reliable antivirus tool that provides regular updates to the installed applications and firewall security measures and prevents big risks.
Remove Gusau Ransomware
Manual malware removal guide might be a lengthy and a complicated process and also requires an advanced computer skill. Instead use Spyhunter or other automatic malware removal tool to remove Gusau Ransomware from the system with an ease.
How to turn your encrypted files working once again?
Well, through the above explanations mentioned, you might have learned actually what happened to your files after encryption. Since the malware that has affected your files is now removed with suggested scanner, you would still require to turn your files working. And we are now going to discuss how to accomplish this task. Based on expert’s researches and their findings, there’s a number of possible methods or ways which a user can get through to restore their encrypted files to work. Even many of victimized users have tried these methods with their own infected computer and success rate is almost 95 percent. So, you can hope to have your files back, and in order to accomplish complete restore of your infected data, we suggest you check out some suggested methods here:
Methods 1: Restore encrypted files using a powerful data recovery software
Before you start to read the steps, you should know this method is appropriate to those users who have found no solutions to decrypt their files affected by ransomware. But still they are able to utilize their system and can install a software. According to experts, this method has very low difficulty level as it utilizes a program to do so.
Although this method is called to be the safest way to recover encrypted files, it still have some limitations. Technically, the encrypted data recovery solution looks through your system and its partitions to recover original files which are actually deleted by virus to replace with the encrypted one. In many cases, the user tend to copy the encrypted files on some external drive and re-install Windows OS that actually declines the chances of data recovery through this method. So, after you have managed to clean your system against malware effects, leave the files as they are and get through the steps to restore your files using one of the top most data recovery app called Stellar Phoenix Data Recovery Software.
Step 1: At first, download the app on your system by clicking the download button below.
Step 2: Click on the downloaded file through your browser to execute its installer.
Step 3: In the license agreement page, click to accept the terms and click Next button. Further, follow on-screen instructions to complete the installation, and click on Finish button finally.
Step 4: After the installation is done, the program will run automatically. At the first interface, select the file types now that you intend to recovery followed by clicking Next.
Step 5: Select the drives over which you need the software to run over and perform the recovery of encrypted files. Done? Click on Scan button.
Step 6: The software will now scan all selected drive to complete the restore process, however it may take some time depending upon volume of drives and number of files or directories were there previously. After the scanning process ends, you will be shown with a file explorer with preview of your data which you want to recover. Just select those which you need to be restored.
Step 7: Browse a location where you want the restored data to be saved.
Method 2: Encrypted file recovery with a lately created Windows backup
This method is technically for those who have a lately created Windows backup saved somewhere and is not affected by the ransomware. Using inbuilt system recovery services, the backup can restore the files which are included under the backup. This method is considered easier as well and leaves no software, thus considered as a very popular method to fight against emergencies caused by infectious malware. Here are the steps to follow:
Step 1: Hit Win + R key combination and to execute Run command line.
Step 2: In the Run text field, type ‘ms-settings:windowsupdate’ and hit the OK button.
Step 3: You will be shown Windows update settings, but you have actually to click Backup option as shown in picture, and located in left pane.
Step 4: Click on ‘More Options’ to open Backup Options panel.
Step 5: As shown in the image below, select or click on “Restore files from a current backup.”
Step 6: In the next shown window, locate the backup where you have saved it, and click on restore button below as marked in the image.
Methods 3: Using Shadow Explorer Application
This file recovery solution is recommended to those who have their backup but is currently not working, still the files under backup are not yet deleted. In this case, Shadow Explorer is an application that can help you restoring your files from those backup files which are active, but still disabled by ransomware somehow. Under this circumstance, inbuilt Windows Backup and Recovery option will not work for you, rather the software will do the magic easily. To accomplish file recovery in this case, get through the steps here mentioned:
Step 1: Click the button below to download Shadow Explorer on your computer.
Step 2: Browser the location where you have downloaded the file. Double click and extract the zip file.
Step 3: Click to open ShadowExplorerPortable directory and double click on the file as shown in the image below.
Step 4: A drop down menu will appear on screen, so just select a desired Date and time according to your requirements on the top left of Shadow Explorer app, and choose the files in given interface that you want to restore using the software. Once the selection is done, Click on the button Export..
Methods 4: Using other decryptors
Well, this method might sounds a bit weird as every ransomware identity basically uses different enciphers and methods to encrypt files on targeted computers. But when the a ransomware which has actually infected your machine comes from a ransomware family for which a decryptor is officially working and available as well, then this might work for you. Technically, this method is just based on luck and analysis, still many users have reported this worked for them. So, if you have seen a ransomware has infected your computer, the very first thing you should do is to identity what kind of virus has actually affected your machine. In most of the cases, ransomware attacks are irreversible, still those infections basically comes from a parent ransomware which might be cracked earlier. For an instance, Scarab ransomware or Hiddentear ransomware are some families which can be decrypted. To check your luck if the present ransomware that has affected your machine is decryptable or not. To do so, follow the guidelines below:
Step 1: Check the Ransomware Database Here and check if decryptor is available for the malware
Step 2: In case you find no results, you can check an open source project called NoMoreRansom to find the ransomware details and decryptor, which has affected your machine. If found, download the decryptor on your computer’s local drive. This page is being regularly updated by its officials once a ransomware is discovered in world.
Step 3: Before you proceed with the downlaoded decryptor, make sure you have backup all your important files.
Step 4: Execute the decryptor to scan and restore your files easily.