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Nov 15, 2021 · reCAPTCHA Domain Hacks. Cybercriminals can use reCAPTCHAs to attack your websites without leaving any trace for you to detect the breach. The typical method is to lure the users to a malicious website displaying a fake reCAPTCHA. The user’s inputs in response to the prompts on the fake reCAPTCHA trigger a download of malware onto the user’s ...
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By Mayank Sharma
published 18 August 2021
Don’t follow CAPTCHA blindly, security researchers warn
(Image credit: Shutterstock)
Cybersecurity experts have shared details about a novel malware campaign that bypasses browser warnings by tricking users into complying with a fake CAPTCHA challenge.
Since the file that the Play button asks the browser to download is an executable, virtually all modern web browsers will display a prompt asking the users to confirm the action.
To bypass this warning, the scam brings up the fake CAPTCHA challenge, which prompts the user to enter a series of keys. Embedded within the list of keys to be pressed is the Tab key and the Enter key.
The Tab key will change the focus of the browser’s prompt to ignore the warning, and the Enter key will confirm the choice and download the file.
Once the malicious executable is on your computer it will jump through hoops before downloading the Gozi/Ursnif banking trojan, which will then get to its nefarious purposes and steal account credentials and further infect the computer by pulling in more malware.
Notably, this is the second scam in as many weeks that has capitalized on internet users’ trust in CAPTCHA challenges to manipulate victims.
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May 16, 2022 · The fake CAPTCHA sites are part of a long lasting campaign responsible for injecting malicious scripts into compromised WordPress websites. This campaign leverages known vulnerabilities in WordPress themes and plugins and has impacted an enormous number of websites over the years. The compromised websites all share a common issue.
Oct 10, 2021 · To see it in action, Go to a website which requires a reCAPTCHA authentication. Click the checkbox next to ‘I’m not a robot’. You’ll get the familiar popup box with instructions on top and a couple of images below. Buster icon sits right next to the audio CAPTCHA button, click the CAPTCHA solver button to begin the authentication process.
Aug 5, 2021 · Here's our choice of the best malware removal software on the market. In its analysis, Proofpoint notes that the use of Captcha in attacks registered a fiftyfold increase as compared to 2020. The ...
Mar 25, 2019 · That system hasn't yet been hacked, despite the title claim of the authors of a recent paper, "Hacking Google reCAPTCHA v3 using Reinforcement Learning." Instead, Mohamed Akrout, of the University ...
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Apr 21, 2021 · While reCAPTCHA v3 can help websites detect bots, it’s only good for that use case. If you want to protect your website from ad fraud, you’ll need to do more than rely on this service. Based on client performance data, carefully crafted malware and human fraud will get past reCAPTCHA v3 and has a high false positive rate in mismarking real people as fraud.
