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May 12th, 2014

Browser Ransomware Attacks are Massive in Scale

avast! Virus Lab infographic shows how prolific and wide-spread Browser Ransomware attacks have been over the last three months.

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During December I wrote about the tricks and tactics of Browser Ransomware. Browser Ransomware is malware that works in different types of browsers to prevent people from using their PCs. To get access back to their own PC, the victim of this malware must pay a ransom to unblock it. The key to success for this attack is its translations into many different languages, giving the cybercrooks a bigger pool of potential victims.

Today I would like to look back on Browser Ransomware attacks and share some data from our avast! CommunityIQ with you.

We detect Ransomware attacks using several different methods.  The detections I checked were created January 30, 2014. I was really surprised at the huge impact this attack has had on AVAST users.

  • In a little under 3 months, AVAST protected more than a half million unique users around the world from Ransomware attacks.
  • In the past 6 weeks, AVAST users have unknowingly visited a site with Ransomware on it over 18 million times.
  • During last 24 hours, AVAST stopped redirection from infected sites to sites hosting Ransomware for more than 18,000 unique users. Read more…