The latest edition of the ISMG Security Report features an analysis of this week’s police takedowns of Emotet and Netwalker cybercrime operations. Also featured: Updates on passwordless authentication and the use of deception technology.
The operators of the Nefilim ransomware used the credentials of a deceased system administrator to plant their crypto-locking malware in about 100 vulnerable systems during one attack, according to Sophos. These types of "ghost" accounts are an increasing issue for security teams.
A multinational law enforcement operation has disrupted the Emotet botnet, gaining control of hundreds of servers and arresting multiple alleged administrators in Ukraine, Europol says. While the botnet could rebound, cybersecurity experts say the criminal operation has been dealt "a huge blow."
With ransomware continuing to fuel a massive surge in illicit profits, some experts have been calling on governments to launch offensive hacking teams to target cybercrime cartels. They're also calling for a review of cyber insurance payouts being used to fund ransoms.
A Cypriot hacker has pleaded guilty to a pair of federal charges after admitting that he hacked the websites of several U.S. organizations, stole data and then threatened to disclose it unless a ransom was paid, federal prosecutors say.
North Korean hackers have been "targeting security researchers working on vulnerability research and development at different companies and organizations" to trick them into installing backdoored software that gives attackers remote access to their systems, warns Google's Threat Analysis Group.
Email security vendor Mimecast confirmed Tuesday that the hackers responsible for the SolarWinds supply chain hack also breached the security firm's network to compromise a digital certificate that encrypts data that moves between some of the firm's products and Microsoft's servers.
A Russian national who served as the administrator for the now-defunct Deer.io online clearinghouse - which sold stolen credentials, hacked servers and criminal services, such as assistance performing hacking activities - has pleaded guilty to a federal charge.
Zscaler's ThreatLabz research team is tracking a new botnet dubbed DreamBus that's installing the XMRig cryptominer on powerful, enterprise-class Linux and Unix systems with the goal of using their computing power to mine monero.
Microsoft researchers are offering fresh details on the SolarWinds hackers' extensive efforts to remain hidden, which gave them more time to fully penetrate systems, move laterally through networks and exfiltrate data in follow-on attacks.
Researchers at Check Point Research are tracking a new botnet dubbed "FreakOut" that's targeting vulnerabilities in Linux systems. The malware is creating a malicious network that has the potential to launch DDoS attacks.
Symantec Threat Intelligence says it's uncovered another malware variant used in the SolarWinds supply chain hack - a loader nicknamed "Raindrop" that apparently was used to deliver Cobalt Strike, a legitimate penetration testing tool, to a handful of targets.
Joker's Stash, the notorious underground marketplace that has specialized in the sale of stolen payment card data, is reportedly shutting down in February with its administrator claiming he will "retire" at that time, according to Gemini Advisory. Researchers say fraudsters will quickly move to other sites.