Latest cybersecurity reporting from selected sources.

Authorities in Pakistan have arrested 21 individuals accused of operating "Heartsender," a once popular spam and malware dissemination service that operated for more than a decade. The main clientele for HeartSender were organized crime groups that tried to trick victim companies into making payments to a third party, and its alleged proprietors were publicly identified by KrebsOnSecurity in 2021 after they inadvertently infected their computers with malware.

The FBI and authorities in The Netherlands this week seized a number of servers and domains for a hugely popular spam and malware dissemination service operating out of Pakistan. The proprietors of the service, who use the collective nickname "The Manipulaters," have been the subject of three stories published here since 2015. The FBI said the main clientele are organized crime groups that try to trick victim companies into making payments to a third party.

The Russia-based cybercrime group dubbed "Fin7," known for phishing and malware attacks that have cost victim organizations an estimated $3 billion in losses since 2013, was declared dead last year by U.S. authorities. But experts say Fin7 has roared back to life in 2024 -- setting up thousands of websites mimicking a range of media and technology companies -- with the help of Stark Industries Solutions, a sprawling hosting provider is a persistent source of cyberattacks against enemies of Russia.

The victim shaming site operated by the Snatch ransomware group is leaking data about its true online location and internal operations, as well as the Internet addresses of its visitors, KrebsOnSecurity has found. The leaked data suggest that Snatch is one of several ransomware groups using paid ads on Google.com to trick people into installing malware disguised as popular free software, such as Microsoft Teams, Adobe Reader, Mozilla Thunderbird, and Discord.

A 26-year-old Ukrainian man is awaiting extradition to the United States on charges that he acted as a core developer for Raccoon, a "malware-as-a-service" offering that helped paying customers steal passwords and financial data from millions of cybercrime victims. KrebsOnSecurity has learned that the defendant was busted in March 2022, after fleeing mandatory military service in Ukraine in the weeks following the Russian invasion.