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Ransomware Hiding as Windows 10 Upgrade

Microsoft is still rolling out Windows 10 however cyber criminals are rolling out Ransomware hiding as Windows 10 upgrade. How do you protect yourself from Windows 10 Ransomware?

Cybercriminals work quickly to take advantage of these opportunities to develop new malware vulnerabilities. Recently researchers at Cisco have reported that they have identified spam carrying an attachment from an email address in Thailand spoofing update to If users download and execute the files inside the zip archive, they will be hit by the CTB-Locker ransomware. This threat comes from the email address with the subject “Windows 10 Free Update” or “Windows 10 Free Upgrade”.

CTB-Locker is a variant of Cryptolocker and it spreads via email, exploit kits or drive-by downloads. It encrypts documents stored on the computers and demands a ransom paid within 96 hours in Bitcoin in exchange for the encryption key.

Cybercriminals are very good at ensuring there are no spelling errors and the email is designed to look as legitimate as possible. Unfortunately users will only realize after the installation as they will get a screen stated they have been encrypted by CTB-Locker instead of the Windows 10 upgrade screen.

Always consult with your IT department or managed IT services professional prior to upgrading your system to Windows 10. You should always be cautious of your inbox and attachments.  Do not look for quick, easy ways to upgrade to Windows 10 and consult with your tech support services department on a proper Windows 10 rollout.

Is your company safe from ransomware and other Cryptolocker threats?


365 iT SOLUTIONS proactively manages client networks from the latest threats to maximize uptime and security while reducing their online exposure.

Is your company secure and safe from external threats including ransomware, cryptolocker, cryptowall and other malicious threats?

Find out with our Complimentary Network and Security Audit or give us a call at 416-398-9889 and we can chat!

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