Tuesday, May 16, 2017

Ransomware

Ransomware


What is ransomware?
Ransomware is a malware that stealthily gets installed in your PC or mobile device and holds your files or operating system functions for ransom. 
It restricts you from using your PC or mobile device, and from accessing your files (files are sometimes locked or encrypted), unless you pay the ransom (in exchange for file decryption).



What does a ransomware attack look like?

Ransomware targets your pictures, documents, files, and data that are personally invaluable.
You can tell that you are under attack when you see any of the following:
  • Ransomware note
  • Encrypted files
  • Renamed files
  • Locked browser
  • Locked screen

Where can a ransomware attack happen?

Computers and mobile devices.

When can a ransomware attack start?

Potential victims can fall into the ransomware trap if they are:
  • Browsing untrusted websites
  • Not careful about downloading or opening file attachments which are known to contain malicious code from spam emails. That also includes compressed files or files inside archives. 
    • Office files that support macros (.doc, .xls, .docm, .xlsm, .pptm, etc.)
  • Installing pirated software, outdated software programs or operating systems
  • Using a PC that is connected to an already infected network

How can you avoid and bounce from a ransomware attack?

Prevention

  • Keep your Windows Operating System and antivirus up-to-date.  Upgrade to Windows 10.
  • Regularly back-up your files in an external hard-drive.
  • Enable file history or system protection. In your Windows 10 or Windows 8.1 devices, you must have your file history enabled and you have to setup a drive for file history.
  • Use OneDrive for Consumer or for Business.
  • Beware of phishing emails, spams, and clicking malicious attachment.
  • Use Microsoft Edge to get SmartScreen protection. It will prevent you from browsing sites that are known to be hosting exploits, and protect you from socially-engineered attacks such as phishing and malware downloads.
  • Disable the loading of macros in your Office programs.
  • Disable your Remote Desktop feature whenever possible.
  • Use two factor authentication.
  • Use a safe and password-protected internet connection.
  • Avoid browsing web sites that are known for being malware breeding grounds (illegal download sites, porn sites, etc.).














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