So-called fake CAPTCHA attacks are the latest threat in a long line of cybercriminals looking for new ingenious ways to trick their victims into giving up their personal data. The campaign is hitting over several industries, instead showing a CAPTCHA challenge that forces users to download malicious files. At Century Solutions Group, we strive to keep our clients educated and aware of these ever-changing threats.
How the Fake CAPTCHA Attack Works
1. Fake CAPTCHA Prompt
Victims will see a legitimate CAPTCHA challenge while visiting a website. It might prompt them with a message asking to “verify” that they are human before continuing.
2. Malware Download
Clicking on the challenge instantiates a download, rather than a legitimate CAPTCHA verification
3. Information Theft
Upon execution, the malware drops an info stealer that can steal credentials, browser cookies, crypto wallet details, and other sensitive data.
4. Potential for Future Exploitation
And the stolen data is used primarily for identity theft, unauthorized financial transactions, or sold on the dark web, resulting in significant security breaches for both individuals and businesses.
What to Do If You Encounter This Attack
If you or your employees encounter that errant CAPTCHA challenge, taking these essential steps:
1. Do not click or download anything.
- Do not use/click CAPTCHA claim on an unfamiliar site.
- If a download begins without any action, do not open or run the file.
2. Close the Tab or Browser
- Close immediately the browser tab or window where the suspicious CAPTCHA appeared.
- Restart your browser and delete your cache and cookies
3. Report and Isolate the Threat
- Do not open that file if it turns out you mistakenly downloaded it. Delete it immediately.
- Alert your IT or cybersecurity team so they can investigate and respond accordingly.
4. Scan Your System for Malware
- No less than, run a total system scan with an up to date and reputable antivirus or endpoint safety resolution.
- If you do find some malware, bring the security
5. Reset Compromised Credentials
- If you believe your credentials have been stolen, change your passwords immediately.
- Activate multi-factor authentication (MFA) for an additional layer of security.
6. Keep Alert and Train You Team
- Implement cybersecurity awareness training to assist employees in identifying phishing and malware tactics.
- Keep your security tools up-to-date to protect against emerging threats.
Final Thoughts
This fake CAPTCHA attack demonstrates how much cybercriminals are innovating and refining their tactics to try to convince users to download malware. Cybersecurity is something that needs to be on your mind and Century Solutions Group is here around the clock to help keep your data secure. Contact us today if you suspect you have been targeted by this attack or if you need help hardening your defenses.
Stay safe and stay informed!