virus


The FBI recently published a report claiming that ransomware victims paid out over US$209 million just in the first quarter of 2016, compared to US$24 million for all of 2015. Ransomware has very quickly become the most fashionable malware on the market, flooding the threat landscape in ways never seen before. We are seeing new strains of ransomware almost every single day. What is Ransomware? Ransomware is malware that locks access or functionality on your computer and then demands payment in exchange for restoring normal operations... [Read More]
by RSS David Maciejak  |  Jun 24, 2016  |  Filed in: Security Research
Valentine’s day is just around the corner and it would not be fair to let the occasion pass us by without reflecting on the colorful, charming, amorous, sometimes exotic world of malware. In this blog we explore some of the milestone threats that have courted many a user over the years, proving only that there are, in fact, other (meaner) fish in the sea. 1971: The Creeper Virus In 1949, the visionary mathematician John von Neumann conceived the idea of self-replicating automata, even before the existence of the modern computer. Little... [Read More]
by RSS Michael Perna  |  Feb 12, 2016  |  Filed in: Industry Trends
With our FortiGuard Labs reporting that 96.5% of all mobile malware is Android based it would be easy to see why someone might opt for an iPhone. But, users beware. Don't write off iOS as the secure alternative to Android just yet! Despite, Android malware being nearly an epidemic, or as Tim Cook referenced, "a toxic hellstew", iOS is not immune. Before somebody asks me (again) whether there are any iOS malware or not, I decided to consolidate the information for you. Hope this helps you, and keeps your (i-) phones secure :) Name Discovery... [Read More]
by RSS Axelle Apvrille  |  Jun 09, 2014  |  Filed in: Security Research
File infectors are malware that are capable of attaching themselves to executable files, e.g. "calc.exe" and "notepad.exe". When we run an infected file, we don't notice that "calc.exe" is infected, since it still shows the calculator running properly. But, behind the scenes, the malware is doing its malicious activities. In this post, we will look into Expiro. It is not a new file infector, but it comes back from time to time with a different punch. Expiro's Characteristics Usually, a file infector changes the entry point of the host file during... [Read More]
by RSS Raul Alvarez  |  Sep 02, 2013  |  Filed in: Security Research
Up to now, mobile malware were certainly growing, but still minor compared to PC malware. Well, this is about to change. We have recently acknowledged a mobile malware getting in our top 10 virus activity, where usually there were only PC malware. The (sad) winner is Android/Plankton.B!tr, with a record prevalence of 4.42% (note: prevalence is the number of new hits in a given time frame divided by the number of fortigates reporting during that same interval of time). This would currently rank it as the 6th most active virus - PC malware included.... [Read More]
by RSS Axelle Apvrille  |  Jul 29, 2013  |  Filed in: Security Research