Spora Ransomware – Fix and Decrypt, Protection and Removal Guide

What is Spora Ransomware?

Spora ransomware first detected in January this year, this ransomware has made its comeback with a different and innovated technique that attempts to mid guide the users and bypass antivirus products and email filters, this was discovered by the SophosLabs researchers. The Spora ransomware targets all versions of Windows including Windows 10, Windows 8 and Windows 7. Spora ransomware is noticeable because of the unique attributes of encryption of the user’s files – namely, it uses AES-265 and RSA encryption method – in order to ensure that the affected user has no choice but to purchase the private key.

Like previous campaigns, the contagion arrives in an email bearing a tainted HTA (HTML Application) file. But while the record has an HTA file extension, the file itself is designed to create doubts in the scanners that might ordinarily stop an HTA file into thinking it’s a simple PDF file and letting it go unscanned instead. This technique has only been used in attacks that majorly targeted the Russian population; its success will determine if the same trick can be used to target users in other countries.

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How Spora Ransomware infects your computer?

The Spora Ransomware is spread through spam email messages that tricks its users into believing that the email contains recieved has an invoice attachment with is for their interest. The attachment is a ZIP archive file which has a HTA files inside. These HTA files have a dual extension slyly embedded, which makes its users believe that the file is either a PDF or a DOC file. Once you open this HTA file it begins the process of infecting and installing the Spora Ransomware on the victim's computer. The infected HTA file creates a JavaScript file named 'close.js' into the Temp directory on the vicitim's computer. This resulted in an executable file and runs it on the infected computer. The executable file is associated with the Spora Ransomware uses a randomly generated name and encrypts all the victim's files. Besides this executable file, there will be a corrupted DOCX file which will also be exported and executed. This infected file will display an error message deliberately, making the computer user believe that the infected file is a corrupted invoice file that is not accessible, while the attack happens in the background and encrypt the files.

The Spora Ransomware Unquine feature-Works on Off-Line Computer!

One unique feature of the Spora Ransomware that makes it different from all the other ransomware till date is that it can work offline; like other ransomware, Spora Ransomware does not generate traffic to its Command and Control servers. This ransomware also does not attack a number of files (unlike some Trojans that can encrypt up to one thousand different file types!). The Spora Ransomware has its limited attack area which includes the following files:

.xls, .doc, .xlsx, .docx, .rtf, .odt, .pdf, .psd, .dwg, .cdr, .cd, .mdb, .1cd, .dbf, .sqlite, .accdb, .jpg, .jpeg, .tiff, .zip, .rar, .7z, .backup.

The Spora Ransomware targets majorly files on local drives and shared network drives. The Spora Ransomware does interrupt with file names and leaves it unchanged, unlike other ransomware, it does not add any file extensions. The Spora Ransomware bypass the windows system files and program directories, to make sure that the victims can still log in and pay the ransom amount.

The Spora Ransomware uses a strong encryption technique Spora Ransomware's encryption method is very sophisticated, which results in a. KEY file and an encryption key which helps in the decryption of the affected files. To decrypt the corrupted files,the victims of the Spora Ransomware attack are asked to key in the generated.KEY file to the cyber criminals who are responsible for the attack. They can then use their own private key to retrieve the decryption key necessary to decrypt the victim's files.

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Tips to prevent Spore Ransomware Virus From Computer :