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A noticeable increase in the number of new malicious files this year. Pixabay

Global cybersecurity firm Kaspersky’s detection systems discovered an average of 3,60,000 new malicious files every day over the past 12 months, a growth of 5.2 percent when compared to the same period the previous year.

The growth was driven mostly by the number of Trojans — malicious files capable of a range of actions, including deleting data and spying — and backdoors, a specific type of Trojan that gives attackers remote control over the infected device, Kaspersky said in its ‘Security Bulletin: Statistics of the Year Report’.


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“It’s hard to know whether or not attackers were more active or our solutions detected more malicious files simply because of greater activity. It could be a combination of both,” Denis Staforkin, a security expert at Kaspersky, said in a statement.

“Either way, we have registered a noticeable increase in the number of new malicious files this year, and this will most likely continue going into 2021 as employees continue to work from home and countries implement different restrictions.”

The report said that 60 percent of those malicious files detected in 2020 were non-specific Trojans. In general, the percent of Trojans detected increased by 40.5 percent when compared to the previous year.


60 percent of those malicious files detected in 2020 were non-specific Trojans. Pixabay

There was also a noticeable increase in the number of backdoors detected, as well as worms – malicious programs that self-replicate on your system — written on the VisualBasicScript language and usually belonging to the Dinihou malware family.

On the decline is adware — programs that bombard you with advertisements — which experienced a 35 percent decrease when compared to 2019, Kaspersky said. The vast majority of malicious files detected (89.80 percent) occurred via Windows PE files – a file format specific to Windows operating systems, said the report.

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At the same time, the number of new malware related to Android operating systems declined by 13.7 percent. Given that many people were working and studying from home, most likely on computers and laptops, attackers appear to have shifted their focus to these devices.

There was also a 27% increase in the number of different scripts – sent via malicious email campaigns or encountered on infected websites, which could, once again, reflect the fact that people spent more time on the Internet and attackers attempted to capitalize on that fact. In order to stay protected, Kaspersky recommended that users should not open any suspicious files or attachments received from unknown sources. (IANS)


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