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Healthcare organizations are an attractive target for ransomware attacks. Read our latest blog post to learn why and get strategies to protect yourself from cyberthreats.
The post Microsoft Threat Intelligence healthcare ransomware report highlights need for collective industry action appeared first on Microsoft Security Blog. READ MORE HERE…
Microsoft has observed the threat actor tracked as Storm-0501 launching a multi-staged attack where they compromised hybrid cloud environments and performed lateral movement from on-premises to cloud environment, leading to data exfiltration, credential theft, tampering, persistent backdoor access, and ransomware deployment. The said attack targeted multiple sectors in the United States, including government, manufacturing, transportation, […]
The post Storm-0501: Ransomware attacks expanding to hybrid cloud environments appeared first on Microsoft Security Blog. READ MORE HERE…
Microsoft Security researchers have observed a vulnerability used by various ransomware operators to get full administrative access to domain-joined ESXi hypervisors and encrypt the virtual machines running on them. The vulnerability involves creating a group called “ESX Admins” in Active Directory and adding an attacker-controlled user account to this group. This manipulation of the Active Directory group takes advantage of a privilege escalation vulnerability (CVE-2024-37085) in ESXi hypervisors that grants the added user full administrative access to the ESXi hypervisor. The vulnerability was fixed by VMware in their June release and ESXi administrators should install this security update.
The post Ransomware operators exploit ESXi hypervisor vulnerability for mass encryption appeared first on Microsoft Security Blog. READ MORE HERE…
User containment is a unique and innovative defense mechanism that stops human-operated attacks in their tracks. We’ve added user containment to the automatic attack disruption capability in Microsoft Defender for Endpoint. User containment is automatically triggered by high-fidelity signals and limits attackers’ ability to move laterally within a network regardless of the compromised account’s Active Directory state or privilege level.
The post Automatic disruption of human-operated attacks through containment of compromised user accounts appeared first on Microsoft Security Blog. READ MORE HERE…
Microsoft Defender is our toolset for prevention and mitigation of data exfiltration and ransomware attacks. Microsoft Purview data security offers important mitigations as well and should be used as part of a defense-in-depth strategy.
The post Microsoft Purview data security mitigations for BazaCall and other human-operated data exfiltration attacks appeared first on Microsoft Security Blog. READ MORE HERE…
Ransomware protection for on-premises systems and hyperconverged infrastructure is the goal of the latest release from “smart infrastructure” vendor Nebulon. READ MORE HERE…
After the FBI and the Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday released a recovery script for organizations affected by a massive ransomware attack targeting VMWare ESXi servers worldwide, reports surfaced that the malware evolved in a way that made earlier recovery procedures ineffective.The attacks, aimed at VMware’s ESXi bare metal hypervisor, were first made public February 3 by the French Computer Emergency Response Team (CERT-FR), and target ESXi instances running older versions of the software, or those that have not been patched to current standards. Some 3,800 servers have been affected globally, CISA and the FBI said.To read this article in full, please click here READ MORE HERE…
The semiconductor equipment maker reported the ransomware incident just a day after national cybersecurity agencies and security experts around the world warned about a global ransomware attack that hit thousands of servers running on VMware ESxi. READ MORE HERE…
Cybersecurity agencies globally — including in Italy, France, the US and Singapore — have issued alerts about a ransomware attack targeting the VMware ESXi hypervisor. READ MORE HERE…
Understanding how Mac ransomware works is critical in protecting today’s hybrid environments. We analyzed several known Mac ransomware families and highlighted these families’ techniques, which defenders can study further to prevent attacks.
The post Unraveling the techniques of Mac ransomware appeared first on Microsoft Security Blog. READ MORE HERE…