|Seems your computer has got infected by Cryptolocker |
it spread through email attachments, this ransomware has been seen targeting companies through phishing attacks.Cryptolocker will encrypt users’ files using asymmetric encryption, which requires both a public and private key.The public key is used to encrypt and verify data, while private key is used for decryption, each the inverse of the other. The bad news is decryption is impossible unless a user has the private key stored on the cybercriminals’ server.
Currently, infected users are instructed to pay $300 USD to receive this private key.
Infected users also have a time limit to send the payment. If this time elapses, the private key is destroyed, and your files may be lost forever.
Files targeted are those commonly found on most PCs today; a list of file extensions for targeted files include:3fr, accdb, ai, arw, bay, cdr, cer, cr2, crt, crw, dbf, dcr, der, dng, doc, docm, docx, dwg, dxf, dxg, eps, erf, indd, jpe, jpg, kdc, mdb, mdf, mef, mrw, nef, nrw, odb, odm, odp, ods, odt, orf, p12, p7b, p7c, pdd, pef, pem, pfx, ppt, pptm, pptx, psd, pst, ptx, r3d, raf, raw, rtf, rw2, rwl, srf, srw, wb2, wpd, wps, xlk, xls, xlsb, xlsm, xlsx
In some cases, it may be possible to recover previous versions of the encrypted files using System Restore or other recovery software used to obtain “shadow copies” of files
So Try to Boot the system in Safe Mode and Try system restore after that you can download and run Malwarebytes this might fix your problem.
You can download it from the below link
John Ryan | Tech Support