Magecart Group 4: A link with Cobalt Group?

Malwarebytes threat intel partnered with security firm HYAS to connect the dots between Magecart Group 4 and the advanced threat group Cobalt.

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Magecart criminals caught stealing with their poker face on

This blog post details the curious case of a web skimmer encountered in a poker application.

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A week in security (June 24 – 30)

A roundup of cybersecurity news from June 24–30, including top malicious web campaigns, updates on the GreenFlash Sundown exploit, a Malwarebytes initiative to double down on stalkerware detection and awareness, and more.

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Google logins: JavaScript now required

Google now requires users to enable JavaScript before logging in for extra security measures. But wait, hasn’t JavaScript been used in cyberattacks? We take a look at the impact of Google’s decision.

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Mass WordPress compromises redirect to tech support scams

Thousands of WordPress sites have been injected with the same malicious redirection. We review the infection details and the malicious traffic leading to browser lockers.

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Explained: regular expression (regex)

What is regular expression (regex) and what makes it vulnerable to attack? Learn how to use regex safely and avoid ReDoS attacks in the process.

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USPS-themed malspam now delivering 1-2-3 knock-out

We’ve detected an uptick in USPS-themed malspam walloping users with a 1-2-3 knock-out of nasty malware designed to infiltrate your system and steal all your most valuable information. This malware-laced email is actively being distributed with various Subject and Body messages containing references to missing and/or late USPS parcels.

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Fake pharma sites are getting even more obnoxious

Recently, we have noticed that pharma sites seem to have discovered the use of JavaScript to change the “Stay or Leave” messages that you see, when you try to close or leave their sites.

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Advanced phishing tactics used to steal PayPal credentials

A new example was found of a phishing mail trying to get a hold of your PayPal login credentials by using a javascript sending them to a data_receiver_url

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Clipboard poisoning attacks on the Mac

Graham Cluley drew my attention the other day to an issue that has apparently been known to some for years, but was new to me: clipboard poisoning, an issue where a website can replace what you think is on your clipboard with something else. Although this seems like an insignificant issue on first glance, it turns out that there are some very serious implications.

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