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A week in security (January 7 – 13)

Last week on the Malwarebytes Labs blog, we took a look at the Ryuk ransomware attack causing trouble over the holidays, as well as a ransom threat for an Irish transportation company. We explored the realm of SSN scams, and looked at what happens when an early warning system is attacked. Other cybersecurity news Password reuse problems. Multiple Reddit accounts reported being locked out after … [Read more...]

Luas data ransom: the hacker who cried wolf?

In a terrible start to the year for Irish tram firm Luas, their site was compromised a week ago and adorned with a stark ransom warning: Click to enlarge You are hacked. Some time ago I wrote that you have serious security holes. You didn’t reply. The next time someone talks to you, press the reply button. You must pay one bitcoin in five days. Otherwise I will publish all data and send emails to … [Read more...]

Ryuk ransomware attacks businesses over the holidays

While families gathered for food and merriment on Christmas Eve, most businesses slumbered. Nothing was stirring, not even a mouse—or so they thought. For those at Tribune Publishing and Data Resolution, however, a silent attack was slowly spreading through their networks, encrypting data and halting operations. And this attack was from a fairly new ransomware family called Ryuk. Ryuk, which made … [Read more...]

Two major Canadian banks blackmailed after alleged data breach

While the US was celebrating Memorial Day on Monday, Canada was dealing with an unusual data breach affecting two popular financial institutions: Simplii Financial and the Bank of Montreal (BMO). The CBC broke the story and updated it throughout the day to mention that some 90,000 customers were possibly affected by this attack which the banks say they became aware of on Sunday, just one day … [Read more...]

SamSam ransomware: what you need to know

SamSam ransomware is a custom infection used in targeted attacks, often deployed using a wide range of exploits or brute-force tactics. Based on our own run-ins with the infection, we’ve observed that attacks were made on targets via vulnerable JBoss host servers during a previous wave of SamSam attacks in 2016 and 2017. In 2018, SamSam uses either vulnerabilities in remote desktop protocols … [Read more...]