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6 ways hackers are targeting retail businesses

Retail hacking is no new phenomenon, although it has increased in frequency over the last few years. In fact, retailers experienced more breaches than any other industry in 2019, and they’ve lost over $30 billion to cybersecurity attacks. Both brick-and-mortar and online businesses experience retail hacking. Cybercriminals must often work harder to access online stores because these … [Read more...]

New evasion techniques found in web skimmers

For a number of years, criminals have been able to steal credit card details from unaware online shoppers without attracting too much attention. Few people in the security industry were talking about these credit card web skimmers, both server-side and client-side, before the latter became largely known as Magecart. It took some major incidents, notably the Ticketmaster and British Airways … [Read more...]

Hundreds of counterfeit online shoe stores injected with credit card skimmer

There’s a well-worn saying in security: “If it’s too good to be true, then it probably isn’t.” This can easily be applied to the myriad of online stores that sell counterfeit goods—and now attract secondary fraud in the form of a credit card skimmer. Allured by great deals on brand names, many people end up buying products on dubious websites only to find out that … [Read more...]

There’s an app for that: web skimmers found on PaaS Heroku

Criminals love to abuse legitimate services—especially platform-as-a-service (Paas) cloud providers—as they are a popular and reliable hosting commodity used to support both business and consumer ventures. Case in point, in April 2019 we documented a web skimmer served on code repository GitHub. Later on in June, we observed a vast campaign where skimming code was injected into Amazon S3 … [Read more...]

Web skimmer phishes credit card data via rogue payment service platform

Heading into the holiday shopping season, we have been tracking increased activity from a threat group registering domains for skimming and phishing campaigns. While most of the campaigns implemented a web skimmer in the typical fashion—grabbing and exfiltrating data from a merchant’s checkout page to an attacker-controlled server—a new attack scheme has emerged that tricks users into … [Read more...]

A week in security (October 28 – November 3)

Last week on Malwarebytes Labs, we celebrated the birth of the Internet 50 years ago, highlighted reports about the US Federal Trade Commission (FTC) filing a case against stalkerware developer Retina-X, issued a PSI on disaster donation scams, looked at the top cybersecurity challenged SMBs face, and provided guidance to journalists on how they can defend themselves against threat … [Read more...]

A week in security (October 21 – 27)

Last week on Malwarebytes Labs, we explored a link between Magecart Group 5 and the Carbanak APT, we discussed the growing rate of robocalls threatening user privacy, and we tipped you off on how to protect yourself from doxing. We were glad to see the BBC raise awareness about stalkerware, much like we did a few weeks ago. Other cybersecurity news NordVPN, a popular virtual private … [Read more...]

The forgotten domain: Exploring a link between Magecart Group 5 and the Carbanak APT

This blog post was authored by Jérôme Segura, William Tsing, and Adam Thomas. In a previous post, we described the possible overlap between certain domains registered by Magecart Group 4 and the Cobalt gang. While attribution is always a difficult endeavor, sharing TTPs can help others to connect the dots between campaigns observed in the wild and threat groups. This time, we looked at … [Read more...]

Magecart Group 4: A link with Cobalt Group?

Note: This blog post is a collaboration between the Malwarebytes and HYAS Threat Intelligence teams. Magecart is a term that has become a household name, and it refers to the theft of credit card data via online stores. The most common scenario is for criminals to compromise e-commerce sites by injecting rogue JavaScript code designed to steal any information entered by victims on the checkout … [Read more...]

A week in security (August 19 – 25)

Last week on Malwarebytes Labs, we reported on the presence of Magecart on a type of poker software; outlined how the Key Negotiation of Bluetooth (KNOB) attack works; followed the money on a Bitcoin sextortion campaign; looked back at DEF CON 27; and reported on continuing ransomware attacks on several US cities. Other cybersecurity news After turning away two vulnerability reports brought … [Read more...]