Tag Archives: Virtualization

Mandiant, VMware and US-CERT warn of malware targeting VMware ESXi servers

Posted on 2022-09-30 by guenni

[German]Google-acquired security vendor Mandiant has encountered a new malware family (VirtualPITA, VirtualPIE, and VirtualGATE) that targets virtualization solutions like VMware ESXi Server and uses specialized techniques to infiltrate. VMware has issued a security advisory to that effect, and US-CERT is … Continue reading →

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VMware ESXi: Retbleed fixes cause 70% performance loss in Linux VMs running kernel 5.19

Posted on 2022-09-14 by guenni

In performance regression testing, VMware testers found a severe performance drop for Linux guests when running kernel 5.19 in a VMware ESXi virtual machine with the Retbleed fixes installed. The degradation was up to 70% for computing, up to 30% … Continue reading →

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How to find weak passwords in Active Directory and eliminate them with PowerShell

[Sponsored Post]Weak or compromised passwords are a known gateway for attackers. If you are able to identify which users in Active Directory (AD) are threatened by this, then PowerShell can help to remedy it. However, PowerShell scripts cannot eliminate basic AD deficits, other tools are needed for this. More ...

VMware Workstation: UNSUPPORTED_PROCESSOR error with Windows 11 Insider and Server 2022

Posted on 2022-08-28 by guenni

[German]Users who want to install an Insider Preview of Windows 11 or a Windows Server 2022 under VMware Workstation and run it virtualized are currently running into a problem. The installation of the guest operating system aborts with a green … Continue reading →

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VMware Carbon Black creates BSOD in Windows (August 2022)

Posted on 2022-08-24 by guenni

[German]VMware users running Carbon Black Cloud Sensor version 3.6.0.1979 – 3.8.0.398 were greeted with blue screens on their Windows systems as of August 23, 2022. The cause is an update for Carbon Black Sensor 3.7.0.1253, which is responsible for this … Continue reading →

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VMware ESXi 6.7 and 7.0 Updates (June 14, 2022)

Posted on 2022-06-20 by guenni

[German]VMware has released two security updates for ESXi 7.0 and for ESXi 6.7 as of June 14, 2022. Blog reader Singlethreaded pointed out these security updates in a comment. In addition to ESXi, vCenterServer & Application running VMware 6.7 are … Continue reading →

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Installing Windows 10/11 in Hyper-V 2nd Generation

Posted on 2022-01-22 by guenni

[German]Installing Windows 10 or Windows 11 in virtual environments can present some challenges. Depending on the hypervisor, the installation may even fail completely. Blog reader Thomas S. emailed me back in December 2021 with his experiences installing Windows 10 as … Continue reading →

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VMware security advisory about vulnerability CVE-2021-22045 in VMware Workstation & Co.

Posted on 2022-01-05 by guenni

[German]Vendor VMware has issued a security alert for vulnerability CVE-2021-22045 as of January 4, 2022. This vulnerability, located in the CD-ROM driver, threatens the security of VMware Workstation, Fusion and ESXi Server through a heap overflow. However, updates are available … Continue reading →

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VMware products threatened by log4j vulnerability CVE-2021-44228

Posted on 2021-12-14 by guenni

[German]The critical vulnerability CVE-2021-44228 in the JAVA library log4j, which became known a few days ago, threatens millions of software products. For many server products, users can do little. However, I would like to recommend a closer look to administrators … Continue reading →

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Azure Confidential Computing with AMD VMs

Posted on 2021-11-28 by guenni

[German]Microsoft has released an initial preview of Azure DCasv5/ECasv5 (confidential virtual machines with AMD SEV-SNP VM isolation) powered by third-generation AMD EPYC™ processors with SEV-SNP. Advertising

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VMware ESXI 7.0: Windows Server 2012 R2 shows "non-accessible boot device" (Oct. 2021)

Posted on 2021-11-02 by guenni

[German]It's an issue that seems to have blown up in some administrators' faces in mid-October 2021. VMware ESXI 7.0 administrators were getting a "non-accessible boot device" error message on virtualized Windows Server 2012 R2 machines. Then the server would no … Continue reading →

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