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Posts Tagged ‘malware detection’
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…
March 4th, 2013

Sneaky little bastard

It has been two or three months since I last blogged about Android malware. But that definitely doesn’t mean there aren’t any new threats. There are plenty! Here are two quick comparisons from the last two years: Growth of the malware problem of the platform in January 2012 compared with January 2013 is far from the ‘normal’ growth of other platforms. According to our statistics, it’s something around +850 percent! Add another year for an even more insane comparison – the growth from January 2011 to January 2013 gives us +3150 percent! The Android platform is definitely one of the most targeted malware platforms these days. But no worries, users of Avast! Free Mobile Security are safe. Read more…

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November 23rd, 2012

Avast! Free Antivirus shines among a dull field in latest AV-Test

Avast Software received an “AV-TEST CERTIFIED” seal for avast! Free Antivirus in the latest test-round from the AV-TEST Institute, an independent testing lab in Germany. Avast! Free Antivirus detected 100% of widespread and prevalent malware (such as viruses, worms or Trojan Horses), and its cumulative score earned it the top spot for overall performance among other free and a number of paid-for solutions competitors.

During September and October 2012, the Institute evaluated 24 home user and 8 business internet security products covering a range of metrics, including protection against ‘real-world’ zero-day malware attacks ( very simply, a previously unknown vulnerability) , detection of a representative set of malware discovered in the last 2-3 months, false positive rates, and scanning speed.

The results in three tests for detection of malware were outstanding, especially in a field crowded with paid-for alternatives.  Avast! Free Antivirus was equal to expensive security suites and outshined the majority with a score of 100% in October “real-world” detection rates, and achieved a perfect 100% in tests to detect widespread malware. Read more…