Sneaky malware abuses CAPTCHA to bypass browser protections

Maria J. Danford

Cybersecurity authorities have shared information about a novel malware marketing campaign that bypasses browser warnings by tricking users into complying with a phony CAPTCHA challenge.

The stability scientists acknowledged as the MalwareHunterTeam delivered BleepingComputer with a suspicious-on the lookout URL, which will take victims to a webpage that incorporates an embedded YouTube movie. 

As shortly as the victims hit the Play button, the webpage downloads an executable named console-perform.exe, which it camouflages at the rear of a phony CAPTCHA challenge.

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Decoding the trickery, BleepingComputer reveals that the phony CAPTCHA receives the victims to push the appropriate keys to overrule the browser’s suspicions about the executable file, enabling the destructive file to obtain the malware onto the personal computer.

Captcha trickery

Considering that the file that the Play button asks the browser to obtain is an executable, practically all modern net browsers will display a prompt asking the users to ensure the action. 

To bypass this warning, the fraud delivers up the phony CAPTCHA challenge, which prompts the user to enter a sequence of keys. Embedded inside the checklist of keys to be pressed is the Tab important and the Enter important.

The Tab important will modify the concentrate of the browser’s prompt to ignore the warning, and the Enter important will ensure the option and obtain the file. 

As soon as the destructive executable is on your personal computer it will soar through hoops right before downloading the Gozi/Ursnif banking trojan, which will then get to its nefarious functions and steal account credentials and further more infect the personal computer by pulling in more malware.

Notably, this is the 2nd fraud in as quite a few months that has capitalized on world wide web users’ belief in CAPTCHA troubles to manipulate victims.

Through BleepingComputer

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