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Remove Windows 10 Ransomware and Restore .windows10 Encrypted Files

Windows10-ransom-note-sensorstechforumA crypto-virus, mocking Windows 10 OS has been released and is reported be a variant of the Troldesh(Shade) ransomware variants. The .windows10 file extension is added to every file which is encoded with a strong encryption algorithm. The virus also leaves a ransom note in which it demands from its victims to contact the e-mail [email protected] for further information. This is done most likely to get a feel for the victim while negotiating and make him/her pay money in the form of BitCoins to get access back to the encrypted files.

Threat Summary

NameWindows 10 Ransomware
TypeRansomware
Short DescriptionWindows 10 Ransomware may encrypt files using a strong RSA encryption and asks the user to pay ransom.
SymptomsEncoded files become corrupt. A ransom note is left with as a “README.txt” file and the wallpaper is changed.
Distribution MethodSpam Emails, File Sharing Networks, Email Attachments
Detection Tool See If Your System Has Been Affected by Windows 10 Ransomware

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Malware Removal Tool

User ExperienceJoin our forum to Discuss Windows 10 Ransomware.
Data Recovery ToolWindows 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.

Windows 10 Ransomware and Its Spread

The creators of the Windows 10 ransomware have most likely used massive spam campaigns to deliver it throughout different computers around the globe. The spammed messages may have different content, for example:

  • “Your PayPal Receipt”
  • “Confirmation Bank Statement”
  • “Your Deadline Expires Tomorrow”
  • “Credit Card Details”
  • “Thank You For Your Purchase!”

This technique is known as social engineering and aims to get users to open the spammed e-mail message. If the user opens it, there can be found a malicious web link in the e-mail’s body which may redirect and infect the user via Exploit Kit. Another threat which may be discovered is malicious e-mail attachments which can infect the user by using malicious macros and JavaScript code.

Windows 10 Ransomware In Depth

As soon as its activated on the computer it has infected, Windows 10 ransomware may connect to the cyber-criminals’ command and control server which is masked using Tor networking. From there, the Windows 10 virus may choose a key from the server it has connected to and encrypt the files of the infected machine.

Similar to Shade ransomware, Windows 10 virus may look for the following types of files which it scrambles with a strong encryption:

→ Wb2, cdr, srw, p7b, odm, mdf, p7c, 3fr, der, odb, arw, rwl, cer, xlk, pdd, rw2, crt, dx, r3d, pem, bay, ptx, pfx, mdb, rtf, txt, xml, csv, pdf, prn, dif, slk, ods, xltx, xlm, odc, xlw, uxdc, pm, udl, dsn, iqy, dqy, oqy, cub, bak, frm, opt, myd, myi, db, onetoc2, one, onepkg, vcs, ics, pst, oft, msg, pptx, ppt, pptm, pps, ppsm, pot, potx, ptm, dwg, dxf, docx, doc, docm, dct, mef, cin, sdpx, dpx, fido, dae, dcm, dc3, dic, eps, kmz, iff, html, mht, mhtml, shtml, hta, htc, ssi, as, asr, xsl, xsd, dtd, xslt, rss, rdf, lbi, asa, ascx, asmx, config, cfm,cfml, cfc, tld, phtml, jsp, svg, svgz, rle, tga, cda, icb, wbm, wbmp, jpf, jpx, jp2, j2k, j2c, jpc, avi, mkv, movm, mp4, wmv, 3gp, mpg, mpeg, m4v, 7z, rar, tar, gz, bz2, wim, xz, c, h ,hpp, cpp, php, php3, php4, php5, py, pl, sln, js, json, inc, sql, java, class, ini Source: TrendMicro

The encryption algorithm which is believed to be used by Windows 10 ransomware is RSA cipher which is [very strong in bits. The ransomware also, adds the .windows 10 file extension and is believed to scramble the names of the encrypted files, for example:

Original file:
New Text Document.txt
Encrypted File
12dh2380d23248f397800x98dbx9g823f834fb3.{VICTIM-ID here}.windows10

The victim’s ID is added as a sub-extension between the scrambled name and the original name of the ransomware and it is also alpha numerical with capitalized letters, for example:

→ A784D238R3093C

After the damage is done, Windows 10 ransowmare changes the background of the infected computer to an image, looking the same as Shade Ransomware(see the picture at the beginning of this article). It also drops a README.txt file with numbers, for example README1.txt, README2.txt and so on. The text file has ransom instructions on how to contact the cyber-criminals in an anonymous manner:

→ “All the important files on your computer were encrypted.
To decrypt the files you should send the following code:
{UNIQUE ID HERE}
to e-mail address [email protected] .
Then you will receive all necessary instructions.
All the attempts of decryption by yourself will result only in irrevocable loss of your data.
If you still want to try to decrypt them by yourself please make a backup at first because
the decryption will become impossible in case of any changes inside the files.
If you did not receive the answer from the aforecited email for more than 48 hours (and only in this case!),
use the feedback form. You can do it by two ways:
1) Download Tor Browser from here:
https://www.torproject.org/download/download-easy.html.en
Install it and type the following address into the address bar:
http://cryptorz76e7vuik.onion/
Press Enter and then the page with feedback form will be loaded.
2) Go to the one of the following addresses in any browser:
http://cryptorz76e7vuik.onion.to/
http://cryptorz76e7vuik.onion.cab/” Source: Pastebin.com

The Tor web page leads to the following communication platform:

onion-web-page-sensorstechforum-windows-10-ransowmare

Windows 10 Ransomware – Conclusion, Removal and File Restoration

Judging by how many similarities there are in this virus to other Troldesh variants, it may be an improved version of XTBL ransomware or Shade ransomware. Its removal is as highly advisable as not paying the ransom money to cyber-criminals for obvious reasons.

In order to delete Windows 10 ransomware in full, it is recommended to carefully follow the removal instructions which we have prepared for you below. To have best results, experts would advise to use an advanced anti-malware program which will automatically find all of the files and registry entries associated with Windows 10 ransomware and remove them too.

After removing this virus, you may want to try our alternative solutions for restoring your files, posted in step “3. Restore files encrypted by Windows 10 Ransomware” below. They may not recover your files, but in case you have backups and haven’t reformatted Windows, you may have a chance of getting back a small portion of them.

Manually delete Windows 10 Ransomware from your computer

Note! Substantial notification about the Windows 10 Ransomware threat: Manual removal of Windows 10 Ransomware requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.

1. Boot Your PC In Safe Mode to isolate and remove Windows 10 Ransomware files and objects
2.Find malicious files created by Windows 10 Ransomware on your PC
3.Fix registry entries created by Windows 10 Ransomware on your PC

Automatically remove Windows 10 Ransomware by downloading an advanced anti-malware program

1. Remove Windows 10 Ransomware with SpyHunter Anti-Malware Tool
2. Back up your data to secure it against infections and file encryption by Windows 10 Ransomware in the future
3. Restore files encrypted by Windows 10 Ransomware
Optional: Using Alternative Anti-Malware Tools

Vencislav Krustev

A network administrator and malware researcher at SensorsTechForum with passion for discovery of new shifts and innovations in cyber security. Strong believer in basic education of every user towards online safety.

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