From 12 to 21: how we discovered connections between the Twelve and BlackJack groups

An investigation of BlackJack’s software, TTPs, and motivations led Kaspersky experts to identify a possible connection with the Twelve group. Continue reading From 12 to 21: how we discovered connections between the Twelve and BlackJack groups

Head Mare: adventures of a unicorn in Russia and Belarus

Analysis of the hacktivist group Head Mare targeting companies in Russia and Belarus: exploitation of WinRAR vulnerability, custom tools PhantomDL and PhantomCore. Continue reading Head Mare: adventures of a unicorn in Russia and Belarus

Carespring Data Breach Exposes Personal and Medical Information of Nearly 77,000 Patients

Data includes names, dates of birth, physical addresses, Social Security Numbers, medical and diagnosis information, and health insurance details.
The post Carespring Data Breach Exposes Personal and Medical Information of Nearly 77,000 Patients appear… Continue reading Carespring Data Breach Exposes Personal and Medical Information of Nearly 77,000 Patients

How “professional” ransomware variants boost cybercrime groups

Kaspersky researchers investigated three ransomware groups that tapped newly built malware samples based on Babuk, Lockbit, Chaos and others, while lacking professional resources. Continue reading How “professional” ransomware variants boost cybercrime groups

The Not-So-Secret Network Access Broker x999xx

Most accomplished cybercriminals go out of their way to separate their real names from their hacker handles. But among certain old-school Russian hackers it is not uncommon to find major players who have done little to prevent people from figuring out who they are in real life. A case study in this phenomenon is “x999xx,” the nickname chosen by a venerated Russian hacker who specializes in providing the initial network access to various ransomware groups. Continue reading The Not-So-Secret Network Access Broker x999xx