Cyber criminals are devising new ways for people to open suspicious emails, thereby infecting socially engineered computers.
One of the most classic tactics that cybercriminals use to open suspicious emails is to attach files on a hot topic, and as you can imagine they are now playing with people’s health with these types of messages related to free tests for the coronavirus .
Now Microsoft’s security intelligence team has unveiled details about two massive phishing campaigns related to the coronavirus theme They are inducing users to download and open malicious Excel files that provide hackers with direct access to computers.
We’re tracking a massive campaign that delivers the legitimate remote access tool NetSupport Manager using emails with attachments containing malicious Excel 4.0 macros. The COVID-19 themed campaign started on May 12 and has so far used several hundreds of unique attachments. pic.twitter.com/kwxOA0pfXH
– Microsoft Security Intelligence (@MsftSecIntel) May 18, 2020
Some of these emails claim to come from Johns Hopkins University while others offer alleged free personal tests for COVID-19. These emails are attached with Excel documents with titles such as “WHO COVID-19 status report”, but when they open them they hide a malicious code that installs, without realizing it, the remote desktop access tool NetSupport Manager.
This remote desktop access tool is completely official and safe, but when used by a cyber criminal it gives you access to your computer, which could be used to install malicious programs or even to gain access to confidential files that you have stored.
Microsoft advises that emails from unknown senders should never be opened, and that we check the address of the message sent even if we recognize the name of the sender, since attackers sometimes find out the name of your friends to make you believe that you are receiving a secure email.
In this way, common sense is our best weapon so that our computer does not become infected when opening any email, one of the main transmission vehicles for this type of malware that can cause us a disgrace if we have confidential files. in our team.
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