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Questions tagged [virtualization]

Virtualization is the creation of a virtual (rather than actual) version of something, such as an operating system, a server, a storage device or network resources.

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Is an isolated VM (Hyper-V) still safe despite the fact that the host uses RDP to view/control the VM?

This question is directed towards creating an isolated environment for a reverse engineering VM, where malicious programs will be disassembled, debugged by executing them, so static and dynamic ...
stringExchange's user avatar
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1 answer
59 views

Can VirtualBox VM prevent malware infection in my case?

I have installed an exe downloaded from an ad. After a while, my files started to be encrypted gradually, I shut down my PC for days, and reinstalled Windows fresh. After a few days, my PC crashed a ...
Nourdine Dali's user avatar
1 vote
1 answer
165 views

PCR 7 in TPM 2.0 has always the same value

First of all, I must say that I'm using a VM with an emulated TPM 2.0. I've created an LUKS2 encrypted partition and configured the TPM 2.0 to unseal the key only if the PCR 7 has a certain value. For ...
Blasco's user avatar
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1 vote
3 answers
167 views

Does emulation/software virtualization provide more isolation/security vs hardware virtualization?

From my understanding: I can emulate many different architectures and systems with qemu as a user(mode) process. There is separate user address space per process. If a malicious process were to ...
ift-436t's user avatar
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97 views

What is Virtual Secure Mode trying to achieve?

I recently learned about the feature in Windows 10 called Windows Secure Mode (https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/tlfs/vsm). I'm trying to understand what exactly it ...
user2334659's user avatar
0 votes
1 answer
207 views

How to transfer files from a virtual machine to the host without risking getting infected?

I have to transfer some files such as movies, TV series and other large stuff (so I can not to use a cloud) from a virtual machine to the host. I read that an infected virtual machine can spread ...
woyim46107's user avatar
1 vote
2 answers
151 views

Is hardware linked between different operating systems installed in same computer?

I know the safest bet If I want to remain anonymous is having 2 separate computers, but I was curious if having 2 OS in different hard drives (both encrypted) but on same computer the same? Is the ...
Elias LP's user avatar
10 votes
5 answers
7k views

Why is Kali released as a VM?

I have completed a few Bug Bounty tutorials. All of them use Kali Linux installed on VMs. Either VirtualBox or VMWare. Is there a reason why Web App Pen testing would be done from a VM? I'm just ...
Neil Meyer's user avatar
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1 answer
198 views

How to isolate VMs with internet exposed websites on my home network?

I want to host some websites served from an isolated VM which is on my home network through port forwarding. Although I believe this is reasonably safe, I want to physically segment internet-exposed ...
aughhhhhhh's user avatar
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0 answers
188 views

Use a virtual machine to do risky stuff. How to stay as safe as possible? [duplicate]

I have a PC with Ubuntu and Windows in dual boot. I use this PC for basic stuff: Windows for gaming, shopping and common browsing, Ubuntu to do something such as home banking. I was thinking to create ...
koxige9113's user avatar
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119 views

How to Safely Research a Suspected Malicious Website by Using A VM [duplicate]

I am aware of a website that I suspect is, at the very least, pulling user data from visitors and possibly performing other malicious activity on visitors. Of course, the safest course of action is to ...
Evan Leahy's user avatar
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63 views

Can guest access host clipboard despite sharing turned off?

Host: Win10 Guest: Linux Software: VirtualBox Clipboard information might not seem important, but it could very well contain a copied password or other useful data. On the host, clipboard history is ...
No Name's user avatar
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0 answers
117 views

What kind of USB-based attacks can be prevented by a VM?

The answer provided to this question by forest has a good summary explaining the types of attacks that a malicious USB can do. Does USB redirection in a VM provide any protection against any of these ...
GuyIncognito's user avatar
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0 answers
75 views

pfSense not working properly on Azure VNet? What do i do?

I'm currently working on a project based on creating virtual networks and configuring a virtualized firewall (pfSense) along with access control. I was given this project idea in a cybersecurity ...
Thanos's user avatar
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1 answer
241 views

Security considerations and differences between Bare metal and Virtualization

I'm currently working on a server. This server is meant to be converged, as in be my storage server and the place publicly accessible services run on. Services like some API's in docker or k8s and ...
Rocco's user avatar
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1 answer
289 views

How to know if you have downloaded a malware on a virtual machine [duplicate]

First, I'm a complete beginner, my only experience in malware is running windows defender lol. But I will try my best to learn anything that you guys recommend. My younger brother keeps downloading ...
you dont need to know this's user avatar
0 votes
1 answer
750 views

user namespaces: do they increase security, or introduce new attack surface?

user namespaces in Linux are presented as a security feature, which should increase security. But is this really true? Is it possible that while user namespaces fix one kind of problem, they introduce ...
Martin Vegter's user avatar
1 vote
1 answer
249 views

Would my hypothetical Opsec setup with the goal of compartmentalizing sensitive areas from an insecure sandbox be sensible?

The root cause of my problem stems from the fact that I need to run untrustworthy software on a bare metal windows machine, which means that I can't just have it in a VM because of major performance ...
NocturnalMoon's user avatar
0 votes
0 answers
25 views

can host read inside the VM? [duplicate]

I have to run private operations in a VM which runs on the enemy's host (don't ask why). I'm wondering to what extend (if possible at all) I can have a configuration such that the host cannot read ...
Laurent Claessens's user avatar
3 votes
3 answers
420 views

Is it possible for a malware in a VM to be still running after the VM is shut down?

Let's say that VMWare or VirtualBox is running the newest version of Debian. I'm not sure if it's possible for any program in the guest to continue running, stealing data from the host, even after the ...
No Name's user avatar
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2 votes
1 answer
359 views

Does connecting a virtual machine to a guest wifi connection protect the host machine from potential malware if it is connected to the main network?

I have a windows 10 host machine that is connected to my LAN with other devices. It runs a VMware Ubuntu virtual machine that is connected to the guest wifi and has shared folders between vm and host ...
tetsu's user avatar
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0 answers
1k views

How do I recklessly browse the web, download suspicious files and run them with as low a risk as possible? [duplicate]

I have recently found out about the existence of virtual machines they can be used to run viruses in an isolated environment from the host computer, like virtual box, vmware and sandboxie. However, I'...
Ryou Kei's user avatar
1 vote
1 answer
331 views

Does using a Hyper-V Ubuntu VM add more security when web browsing?

I've always been concerned that my casual browsing of the web directly from Windows 10 could infect my PC. How much added security (if any) could be obtained by using Hyper-V to run an Ubuntu 22.04 ...
JeanOfGrenoble's user avatar
1 vote
0 answers
181 views

Was the kernel I used vulnerable/deprecated?

Background Information As I developer I am running multiple (partly virtual-)machines with Debian GNU/Linux and on some of these machines I work with highly confidential documents or dangerous ...
PXLDEV's user avatar
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1 answer
287 views

What are the best security practices when when using VirtualBox on Windows 11 with an old OS?

Got a cheap new laptop to play old games with a VM of Windows XP/7, with the host being Windows 11. Using a WiFi that isn't my own (as I don't plan on connecting to the internet with this laptop) I ...
larld's user avatar
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3 votes
1 answer
383 views

AMD SEV - attack through the hypervisor console

AMD SEV enables creating a trusted encrypted VM where the memory of the whole VM is encrypted using cryptographic keys and features on the CPU and thus not visible to the cloud provider (in theory if ...
Pavle V's user avatar
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3 votes
1 answer
128 views

Security advanatages to running a webapp inside a container, which is ALSO inside a vm?

I am doing some security consulting for a client who intends on deploying a Ruby on Rails web application. I am trying to ascertain a couple of different things... Is it any more secure to run an ...
Chev_603's user avatar
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0 votes
1 answer
167 views

Keylogging virtual machine from host

Can a keylogger in a host machine capture keystrokes in virtual OS? I'd like to get into cryptocurrencies but I don't know if my machine (mac) is secure. So I thought I could create a VM for it but I ...
user277849's user avatar
2 votes
1 answer
992 views

How can a typical researcher protect against VM escapes?

I read a similar question here on how large companies protect themselves and became intrigued about how this would transfer over to less significant operation (ie security researcher, small company, ...
belkarx's user avatar
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3 votes
0 answers
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When using VirtualBox, is it better to use the VirtualBox encryption or the OS disk encryption?

VirtualBox has an option to encrypt the drive of a VM. When I installed Debian or Ubuntu, I have the option to say that I want the full disk encrypted. I'm thinking that both do pretty much the same ...
Alexis Wilke's user avatar
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0 votes
1 answer
597 views

How to store malware for analysis?

I am planning on analysing some malware samples dynamically using a sandbox tool and a target Windows VM. The host (physical machine) runs Ubuntu and in it are the sandbox and target VM. So far I only ...
Marcus's user avatar
  • 1,155
1 vote
1 answer
270 views

RDP to a Virtual Machine. Where should I apply the security measures? [closed]

I have a computer with Hyper-V installed and a virtual machine. I want to connect only and directly to the VM with Remote-Desktop from outside the network. I have some good ideas to make the ...
kongiponki kongiponki's user avatar
31 votes
5 answers
11k views

If my machine is infected and I run a Virtual Machine inside of it, will the VM also be compromised

I've been researching on virtual machine security and found a lot of articles detailing how an infected VM is isolated (or not) from the host machine. But I couldn't find any answers to the opposite ...
João A. Veiga's user avatar
1 vote
1 answer
352 views

What is the point of an OS (Win11) requiring a TPM (or vTPM) beyond a layer of DRM?

Windows 11 requiring a TPM of some sort seems more like a DRM preventing me from duplicating a W11 Virtual Machine on multiple systems and distributing it versus any tangible benefit to the end-user. ...
Joseph Michael's user avatar
2 votes
2 answers
505 views

How to create a safe environment in Windows 10 for high-performance programs?

My friend handed me a .exe file of an old game we want to play together. My laptop has important files, so I do not want to install it immediately. I am still sceptical that he might not know it ...
Akiii's user avatar
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0 votes
0 answers
304 views

How to isolate Windows10 Virtual machine from w10 host (virtualbox) for malware analysis [duplicate]

My goal is to find malware that performs network activities and captures the traffic with Wireshark. I have a Windows 10 laptop host machine and VirtualBox which has virtual Windows 10 machine. I am ...
ArcherPacman's user avatar
2 votes
1 answer
150 views

Why must a virtual image be secured

Virtual machines and their disk images are simply files residing somewhere. So I supposed this means that, for example, a stopped VM is potentially accessible on a file system. What could an attacker ...
Beginner's user avatar
1 vote
3 answers
256 views

security measures for proprietary code on a VPS

I've got several C++ and Python scripts containing proprietary algorithms, which are latency-sensitive and hence need to be on a system near the data center serving data to them. While a VPS is ...
CB001's user avatar
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0 votes
2 answers
842 views

What happens to apps, files, objects in a VM if it gets deleted

Usually, when a file is deleted on your computer, it is simply unlinked. The file data is still stored on your disk, there's just nothing pointing to that spot in the memory, and the OS interprets ...
Brandon's user avatar
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2 votes
1 answer
248 views

How to make sure my laptop (Ubuntu 20.04) is secure with a Windows 7 VM?

I have an old laptop which is running Ubuntu 20.04 and I am planning to use a virtual machine of Windows 7 Pro (using VirtualBox maybe). As its an old laptop and not my primary source of using the ...
renthus's user avatar
  • 23
1 vote
1 answer
365 views

setting up a lab in virtualbox for different tasks: local net testing & vulnerable virtual network

I have seen several tutorials about setting up Virtualbox networks for Kali & vulnerable machines together using the option Internal network, but I have several questions regarding other ...
Aurelie Navir's user avatar
1 vote
1 answer
204 views

Are CPU side-channel attacks still a concern on VPSs

I've been looking into getting a VPS to run an OpenVPN server on and a few other things. I've been speaking to a hosting company and they have sent me this screenshot to show they are protected ...
Letal1s's user avatar
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0 votes
2 answers
481 views

Using Hydra not sending traffic to target VM

I have 3 VM's 1 with Ubuntu server version 20.04, apache2, php, mysql and DVWA. (10.0.2.4) 1 with Ubuntu client version 20.04 with hydra installed. (10.0.2.5) 1 with Kali 2021.3. (10.0.2.6) All VM's ...
Rob The Ranger's user avatar
1 vote
1 answer
450 views

Is protecting against Meltdown and Spectre on virtual servers actually possible?

I've been reading into the Meltdown and Spectre bugs recently and the issues they cause for virtualised servers, as memory in one VM can potentially be accessed by another user in a separate VM with ...
Letal1s's user avatar
  • 109
0 votes
1 answer
175 views

Can you subvert a physical system at runtime?

In case of a virtual machine it is possible to break out of the VM and gain code execution on the host. In that way you could evade any detection mechanism for malware inside the VM and maybe even on ...
comptia's user avatar
1 vote
2 answers
1k views

Browser fingerprint is unique while running a VM of a clean install of Windows 10

So I used Qemu on Ubuntu 20 to emulate a computer running windows 10. I kept all of Qemu default values. Then, while installing the Windows 10 iso, I kept all the default values once again. Finally, I ...
propre_poli's user avatar
0 votes
1 answer
207 views

Can I detect malware that’s on my host OS if I’m using diagnostic tools in a VM?

If I have a VirtualBox VM running Kali Linux, can I use its diagnostic tools to search for malware on the host?
MrHotShot's user avatar
10 votes
2 answers
873 views

How effective is Windows KDP for exploit mitigation in practice?

Windows Kernel Data Protection is a kernel security feature which appears to use Extended Page Tables (EPT, a hardware virtualization feature) to enforce read-only pages. How effective is this at ...
forest's user avatar
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0 votes
2 answers
307 views

Can computers built in minecraft be used to hijack hosts?

As people build more powerful computers in minecraft which can then run programs, is there a way to use those computers to run programs that hijack the host in some way? Possible contest example would ...
IDNeon's user avatar
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0 votes
3 answers
359 views

Can you make your host machine appear as a virtual machine?

I keep seeing how people are working to make virtual machines look more like real machines, but I have been wondering about the reverse. I have noticed a trend where viruses will automatically shut ...
nedrobme's user avatar

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