De acordo com o Relatório de Inteligência de Segurança da Microsoft, A Ásia foi a região com o maior número de infecção ransomware no período entre fevereiro e dezembro, 2017. As estatísticas são tomadas a partir seção especial do relatório dedicado à ransomware.
Myanmar and Bangladesh are the countries mostly attacked by the file encrypting menace, accounting for 0.48% e 0.36% of attack rates. The third country on the list is Venezuela, com 0.33%.
Por outro lado, countries with lowest volume of ransomware infections are Japan, Finlândia, e os EUA. Combined, the three countries showed an average ransomware encounter rate of 0.03% on a monthly basis.
What Is the Most Active Ransomware for 2017?
According to Microsoft’s statistics, the most popular ransomware for last year, in terms of activity, is ScreenLocker. Surpreendentemente, the “award” didn’t go to WannaCry, NotPetya or Bad Rabbit, which were the ransomware pieces that saw most media coverage due to their destructiveness. De fato, the most encountered ransomware family in the wild is not that famous – LockScreen.
Curiosamente, the ransomware doesn’t encrypt the victim’s files but displays a scare message claiming that the user has been watching adult video content. LockScreen then asks the victim to send an SMS to a premium phone number to receive an unlock code for the computer’s screen. The ransomware was initially targeting only Android devices, and at some point it went on to infecting Windows-running computers.
How did this happen exactly? Microsoft’s explanation:
This can happen if, por exemplo, Android users sync their phones or download Android applications in Windows and do side loading of the applications that are not sanctioned (por exemplo, not sourced from the official Google Play store). The Southeast Asia region tends to have a higher adoption rate of Android, which would explain the greater number of encounters in that region.
To stay protected against malware and ransomware, it is strongly recommended to employ and sustain a powerful anti-malware solution.
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