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Technology Other News 27 Jul 2020 Beware, cyber crimin ...

Beware, cyber criminals' use of malicious Microsoft Office files up by 176 pc

Published Jul 27, 2020, 6:06 pm IST
Updated Jul 27, 2020, 6:26 pm IST
SonicWall Capture Labs publishes findings from intelligence data gathered from 1.1 million sensors in 215 countries and territories.
While there has been a 24% drop in malware attacks worldwide, such attacks specific to IoT have risen by 50%. Also, phishing attempts have gone up by 7 per cent, capitalising on the pandemic.
 While there has been a 24% drop in malware attacks worldwide, such attacks specific to IoT have risen by 50%. Also, phishing attempts have gone up by 7 per cent, capitalising on the pandemic.

Findings published by SonicWall Capture Labs’ threat research team on Monday say there has been an increase in ransomware, IoT malware attacks, opportunistic use of COVID-19 pandemic for phishing, and hiding of trojans in Microsoft Office files by cybercriminals.

Yet, there has been a decrease in malware volume in India and a few other countries. In India, malware volume fell 64%, but it does not imply that cyberspace here is safer. India’s malware rates plummeted in April, but by June had nearly reached Q1 levels, the mid-year update to the 2020 SonicWall Cyber Threat Report said.


The SonicWall Capture Labs report analyses threat intelligence data gathered from 1.1 million sensors in over 215 countries and territories.

Here are the findings of the mid-year update to the 2020 SonicWall Cyber Threat Report:

24% drop in malware attacks worldwide

50% rise of IoT malware attacks

7% of phishing attacks capitalized on COVID-19 pandemic

176% increase in malicious Microsoft Office file types

Cyber criminals are taking advantage of the less secure home networks used by millions of people who have had work from home due to the pandemic, Debasish Mukherjee, SonicWall Vice President of Regional Sales, APAC, said.


As more people work from home, Microsoft Office a target

Employees cannot do without Microsoft Office tools and cybercriminals have been quick to leverage the situation. SonicWall threat researchers found a 176% increase in new malware attacks disguised as trusted Microsoft Office file types.

As much as 22% of Microsoft Office files and 11% of PDF files made up 33% of all newly identified malware in 2020, Sonic Wall said. Its technology identified a record 120,910 ‘never-before-seen’ malware variants during that time — a 63% increase over the first six months of 2019. 


IoT devices still at high risk

Internet of Things (IoT) devices such as refrigerators, baby monitoring cameras, doorbells or gaming consoles face the risk of being hacked. Researchers at SonicWall found a 50% increase in IoT malware attacks, a number that mirrors the number of additional devices that are connected online as individuals and enterprise alike function from home. Unchecked IoT devices can provide cybercriminals an open door into what may otherwise be a well-secured network.

Companies must recognise the heightened security risks as employees work remotely, especially without the full protection of corporate firewalls and other security measures and must take appropriate cyber security measures, said Mukherjee.


Cybercriminals are increasingly mounting social-engineered cyber attacks, such as the recent one on Twitter, which phished for crucial information from a few Twitter employees to gain access into the social media platform’s administrative setup and take over about 130 prominent twitter accounts.

As for cyber criminals taking advantage of people’s interest in COVID-19, SonicWall researchers detected a flurry of increased attacks and scams specifically based around COVID-19 as far back as February 4, and noted a 7% increase in COVID-related phishing attempts during the first two quarters.


As expected, COVID-19 phishing began rising in March, and saw its most significant peaks on March 24, April 3 and June 19. This contrasts with phishing as a whole, which started strong in January and was down slightly globally (-15%) by the time the pandemic phishing attempts began to pick up steam.

Why malware attacks have fallen

During the first half of 2020, the number of global malware attacks fell from 4.8 billion to 3.2 billion (-24%) over 2019’s mid-year total. This drop follows the downward trend that began last November.


There are regional differences in both the amount of malware and the percentage change year over year, highlighting shifting cybercriminal focus. For example, the United States (-24%), United Kingdom (-27%), Germany (-60%) and India (-64%) all experienced reduced malware volume.

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