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Questions about VMware ESXi servers exploit - [Thread Split]
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<blockquote data-quote="ForgottenSeer 98186" data-source="post: 1024070"><p>At a very high level, it is a network attack on the same network segment upon which the ESXi instance is located. There is no malware in the sense that you are referring to that is involved. The attacker uses specialized software to create specially constructed packets that it forwards to port 427. Once the packet is received it creates a memory exploit.</p><p></p><p>Some ESXi (a VMWare platform that hosts virtual machines and other VMWare products) instances were exposed directly to the internet and configured in a way that gave anybody who scanned for port 427 an open door.</p><p></p><p>Once the threat actor was inside they ran processes to encrypt VMWare file types. So technically, there is malicious code that executes, but it is on the ESXi platform. That platform does not have any endpoint protection or security software on it. Its protections are based solely upon proper and secure configuration and a well-protected network.</p><p></p><p>This is the Proof-of-Concept that was published on the internet (Medium.com) for months before VMWare issued a patch:</p><p></p><p>[MEDIA=medium]a266bcad14b9[/MEDIA]</p><p></p><p></p><p>It is a network attack that results in a memory exploit, then malicious code is run in-memory.</p></blockquote><p></p>
[QUOTE="ForgottenSeer 98186, post: 1024070"] At a very high level, it is a network attack on the same network segment upon which the ESXi instance is located. There is no malware in the sense that you are referring to that is involved. The attacker uses specialized software to create specially constructed packets that it forwards to port 427. Once the packet is received it creates a memory exploit. Some ESXi (a VMWare platform that hosts virtual machines and other VMWare products) instances were exposed directly to the internet and configured in a way that gave anybody who scanned for port 427 an open door. Once the threat actor was inside they ran processes to encrypt VMWare file types. So technically, there is malicious code that executes, but it is on the ESXi platform. That platform does not have any endpoint protection or security software on it. Its protections are based solely upon proper and secure configuration and a well-protected network. This is the Proof-of-Concept that was published on the internet (Medium.com) for months before VMWare issued a patch: [MEDIA=medium]a266bcad14b9[/MEDIA] It is a network attack that results in a memory exploit, then malicious code is run in-memory. [/QUOTE]
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