Decrypt Files Encrypted by .FailedAccess Ransomware

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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Article created to help you completely remove the .FailedAccess file virus and decrypt files encrypted by it for free.

Yet another variant of “Stupid” ransomware family has appeared out in the wild, this time using the .FailedAccess file extension. The virus has a goal to encrypt the files on computers that have been compromised by it after which leave behind a ransom note file notifying victims to pay a hefty ransom fee in order to restore files encrypted by this ransomware infection. Fortunately, the FailedAccess ransomware is part of the family of Stupid ransomware which is decryptable. In case you have become a victim of this virus, we advise following the instructions on this article to remove the virus and restore .FailedAccess encrypted files from your computer.

Threat Summary

Name	FailedAccess
Type	Ransomware
Short Description	Encrypts important documents, music, video, images and other files and then demands a ransom to be paid to get the files back.
Symptoms	This ransomware uses the .FailedAccess file extension which is added to the encrypted files.
Distribution Method	Via an Exploit kit, Dll file attack, malicious JavaScript or a drive-by download of the malware itself in an obfuscated manner.
Detection Tool	See If Your System Has Been Affected by FailedAccess Download Malware Removal Tool
User Experience	Join our forum to Discuss FailedAccess.
Data Recovery Tool	Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

.FailedAccess Virus – Infection Process

The .FailedAccess threat may cause an infection by carefully utilizing multiple different types of techniques, such as:

Trojan.Dropper.
Trojan.Downloader.
Exploit kits.
JavaScript.
Malcious MicrosoftOffice macros.

These techniques may be used in multiple different types of situation, such as sending spam e-mails to users. Such spam e-mails may include the usage of legitimate e-mail addresses that are not flagged as spam, to spread messages to users with convincing statements to open the e-mail attachments. Two examples of such e-mails, oje using a malicious attachment and the other using a URL can be seen below:

In addition to being spread via e-mail, the FailedAccess ransomware virus may also cause infection via fake setups as well as other fake software uploaded on suspicious websites or torrent-providers.

.FailedAccess File Virus – Infection Activity

As soon as the victim of .FailedAccess ransomware clicks on the web link, the virus may connect to the C2 server or a distribution site. From there, the payload of the ransomware is downloaded and may reside within the following Windows folders:

• %AppData%
• %Roaming%
• %Local%
• %LocalLow%
• %SystemDrive%
• %Windows%
• %System32%

The ransomware infection may also tamper with the Windows Registry editor, modifying the following keys:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

After having changed different settings, .FailedAccess ransomware may begin to encrypt user files.

FailedAccess Virus – Encryption Process

The encryption process of FailedAccess may target, documents, photos, music and many other file types:

“PNG .PSD .PSPIMAGE .TGA .THM .TIF .TIFF .YUV .AI .EPS .PS .SVG .INDD .PCT .PDF .XLR .XLS .XLSX .ACCDB .DB .DBF .MDB .PDB .SQL .APK .APP .BAT .CGI .COM .EXE .GADGET .JAR .PIF .WSF .DEM .GAM .NES .ROM .SAV CAD Files .DWG .DXF GIS Files .GPX .KML .KMZ .ASP .ASPX .CER .CFM .CSR .CSS .HTM .HTML .JS .JSP .PHP .RSS .XHTML. DOC .DOCX .LOG .MSG .ODT .PAGES .RTF .TEX .TXT .WPD .WPS .CSV .DAT .GED .KEY .KEYCHAIN .PPS .PPT .PPTX ..INI .PRF Encoded Files .HQX .MIM .UUE .7Z .CBR .DEB .GZ .PKG .RAR .RPM .SITX .TAR.GZ .ZIP .ZIPX .BIN .CUE .DMG .ISO .MDF .TOAST .VCD SDF .TAR .TAX2014 .TAX2015 .VCF .XML Audio Files .AIF .IFF .M3U .M4A .MID .MP3 .MPA .WAV .WMA Video Files .3G2 .3GP .ASF .AVI .FLV .M4V .MOV .MP4 .MPG .RM .SRT .SWF .VOB .WMV 3D .3DM .3DS .MAX .OBJ R.BMP .DDS .GIF .JPG ..CRX .PLUGIN .FNT .FON .OTF .TTF .CAB .CPL .CUR .DESKTHEMEPACK .DLL .DMP .DRV .ICNS .ICO .LNK .SYS .CFG”Source:fileinfo.com

As soon as the virus detects the file extensions, which it is pre-configured to encode, the ransomware immediately begins to change blocks of their data. After the encryption is complete, the virus adds the .FailedAccess file extension, making the files appear like the image below:

Fortunately, files encrypted with this extension, can be decrypted as researcher demonslay335 has updated the decryptor for all Stupid Ransomware variants know so far.

Remove .FailedAccess Virus

Before you begin decrypting the .FailedAccess encoded files, it is advisable to first get rid of this threat. One very good method to do it, is to follow the removal instructions underneath. They are carefully designed to help you isolate and then remove all the malicious objects. However, since the .FailedAccess ransomware heavily interferes with Windows registry entries and files, it is strongly advisable to focus on removing this threat automatically. The best recommended tool to do this with is an advanced anti-malware program which will also ensure future protection in the meantime.

Note! Your computer system may be affected by FailedAccess and other threats.
Scan Your PC with SpyHunter
SpyHunter is a powerful malware removal tool designed to help users with in-depth system security analysis, detection and removal of threats such as FailedAccess.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.

To remove FailedAccess follow these steps:

1. Boot Your PC In Safe Mode to isolate and remove FailedAccess files and objects

Boot Your PC Into Safe Mode

1. For Windows XP, Vista and 7. 2. For Windows 8, 8.1 and 10. Fix registry entries created by malware and PUPs on your PC.

For Windows XP, Vista and 7 systems:

1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
2. Select one of the two options provided below:

– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.

– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.

3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.

4. Log on to your computer using your administrator account

While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.

Step 1: Open up the Start Menu.

Step 2: Click on the Power button (for Windows 8 it is the little arrow next to the “Shut Down” button) and whilst holding down “Shift” click on Restart.

Step 3: After reboot, a blue menu with options will appear. From them you should choose Troubleshoot.

Step 4: You will see the Troubleshoot menu. From this menu choose Advanced Options.

Step 5: After the Advanced Options menu appears, click on Startup Settings.

Step 6: From the Startup Settings menu, click on Restart.

Step 7: A menu will appear upon reboot. You can choose any of the three Safe Mode options by pressing its corresponding number and the machine will restart.

Some malicious scripts may modify the registry entries on your computer to change different settings. This is why cleaning your Windows Registry Database is recommended. Since the tutorial on how to do this is a bit long and tampering with registries could damage your computer if not done properly you should refer and follow our instructive article about fixing registry entries, especially if you are unexperienced in that area.

2. Find files created by FailedAccess on your PC

Find files created by FailedAccess

1. For Windows 8, 8.1 and 10. 2. For Windows XP, Vista, and 7.

For Newer Windows Operating Systems

Step 1:

On your keyboard press  + R and write explorer.exe in the Run text box and then click on the Ok button.

Step 2:

Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.

Step 3:

Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:

N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.

For Older Windows Operating Systems

In older Windows OS’s the conventional approach should be the effective one:

Step 1:

Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.

Step 2:

After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.

Step 3:

After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.

Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.

Use SpyHunter to scan for malware and unwanted programs

3. Scan for malware and unwanted programs with SpyHunter Anti-Malware Tool

Scan your PC and Remove FailedAccess with SpyHunter Anti-Malware Tool and back up your data

1. Install SpyHunter to scan for FailedAccess and remove them.2. Scan with SpyHunter, Detect and Remove FailedAccess. Back up your data to secure it from malware in the future.

Step 1: Click on the “Download” button to proceed to SpyHunter’s download page.

Download

Malware Removal Tool

It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.

Step 2: Guide yourself by the download instructions provided for each browser.

Step 3: After you have installed SpyHunter, wait for it to update automatically.

Step 1: After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.

Step 2: After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.

Step 3: If any threats have been removed, it is highly recommended to restart your PC.

Back up your data to secure it against attacks in the future

IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats. We recommend you to read more about it and to download SOS Online Backup .

SOS Online Backup

4. Try to Restore files encrypted by FailedAccess

Try to Restore Files Encrypted by FailedAccess

Ransomware infections and FailedAccess aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested several alternative methods that may help you go around direct decryption and try to restore your files. Bear in mind that these methods may not be 100% effective but may also help you a little or a lot in different situations.

Method 1: Scanning your drive’s sectors by using Data Recovery software.
Another method for restoring your files is by trying to bring back your files via data recovery software. Here are some suggestions for preferred data recovery software solutions:

• Stellar Phoenix Data Recovery Technicians License(Pro version with more features)
• Stellar Phoenix Windows Data Recovery
• Stellar Phoenix Photo Recovery

Method 2: Trying Kaspersky and EmsiSoft’s decryptors.
If the first method does not work, we suggest trying to use decryptors for other ransomware viruses, in case your virus is a variant of them. The two primary developers of decryptors are Kaspersky and EmsiSoft, links to which we have provided below:

• Kaspersky Decryptors
• Emsisoft Decryptors

Method 3: Using Shadow Explorer

To restore your data in case you have backup set up, it is important to check for Volume Shadow Copies, if ransomware has not deleted them, in Windows using the below software:

• Shadow Explorer

Method 4: Finding the decryption key while the cryptovirus sends it over a network via a sniffing tool.

Another way to decrypt the files is by using a Network Sniffer to get the encryption key, while files are encrypted on your system. A Network Sniffer is a program and/or device monitoring data traveling over a network, such as its internet traffic and internet packets. If you have a sniffer set before the attack happened you might get information about the decryption key. See how-to instructions below:

Instructions on How to Find Decryption Key for Files Encrypted By Ransowmare

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

More Posts - Website

Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

More Posts - Website