It is likely to be fine with classic Captcha tests on web sites. You know, the thing you should click to confirm that you are not a robot? Write in letters and numbers with a strange look? Select all traffic lights, buses, motorcycles, this type of things? These tests are often inconvenient and traps to collect data, but infiltrators now tend to Captchase as a way to deceive users to install malware.
At least, this is increasingly warning security experts. Last month, Malwarebytes Labs spotted one of this fake catech that made the text of “verification” in Windows Run. Recently, there have been reports on harmful programs called “Quakbot” that used a more dangerous variable in the CAPTCHA fraud.
How do Cabsha operate fraud?
Captchas attacks are dangerous because users click on them usually when they appear on web sites. Handicrafts are now taking advantage of this immediate reaction behavior through fake popups that are amazingly similar to real Captcha tests.
Here, also, users are required to click on a test to solve the test. However, when clicking this box, you end up to redirect it to other pages. Additional procedures ensure that dangerous orders are copied to your portfolio, which makes it possible for attackers to run those dangerous orders on your computer without permission.
In some cases, this Captchas calls on you to click on certain keys that call directly Windows PowerShell or to implement specific orders on your device. For this reason you should be skeptical of any Captcha request asking you to do anything unusual.
These types of attacks are called Clickfix Captcha?
These attacks are amazingly effective
To keep you away from your toes, every later click is hidden in the Clickfix Captcha attack with additional “verification requests” that hide the harmful nature of what you are doing. In the worst cases, you end up in an uncomfortable way to implement a text program for harmful programs that takes over your computer.
Captcha attacks are said to have a higher success rate than other fraud attempts due to the new psychological tricks that prey on reflexive behavior when our guards collapse. The only real protection is to remain vigilant, especially when visiting unfamiliar websites. Of course, the presence of reliable antivirus programs that protect against threats.
This article was originally appeared in our sister’s publication PC-Welt It was translated and translated from German.
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