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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How can a VPN use a virtual router and not send encrypt traffic and still be safe?

Today in networking class we were talking about VPNs. The prof got on topic of virtual routers and said that a way some VPNs work is by a client would purchase the service from the ISP and the ISP ...
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What are the steps to securing encryption keys/databases on an unsecured DAAS provider?

Most Desktop As A Service providers store their virtual hard drives and the VMs RAM in a way that allows them to access their contents. Choosing a provider who offers a 'no-knowledge of server' ...
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Can a virtual machine be used instead of the host?

I was thinking of using a Debian guest as my main 'host' instead of my actual host (Ubuntu). Do you think this will have any advantages in terms of making it difficult for digital forensics to ...
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223 views

Testing Malware in one Virtual Machine which is running side by side along with other Virtual Machines

I want to harden the security of my host system and side by side running virtual machines while testing some files for malware in one of the virtual machines. Here comes a list of questions that I ...
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79 views

Host an application on a virtualbox? [duplicate]

I want to host an application locally, but I was worried about security of my local files. I decided to 'encapsulate' the application using VirtualBox. Is that safe for my host OS (Windows)?
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Can virtual machines be used to isolate vulnerable software?

I have had a look at most of the previous questions about virtual machines (VMs) and they all appear to be focused on hosting malware in the VM and preventing it breaking out of the VM. What I can’t ...
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111 views

PCI Compliance - Antivirus in host and virtual environment?

We have a couple servers with a host system, and virtual DB and Web instances. Is it possible to be compliant with PCI if you install the Antivirus only on the host system, or does it need to be ...
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Source code security

We have about 20 developers working in a heterogeneous environment, mostly using company laptops or desktops. We run Windows 7 on desktops/laptops and a mixture of Linux distros (Ubuntu/CentOS). ...
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127 views

How Secure are Virtual Networks [duplicate]

When using a Virtual Network, is it possible to infect the underlying Network infrastructure with malware from the Virtual Network. How safe is the use of Virtual Networks?
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Does a Virtual Machine stop malware from doing harm?

I would like to know if it is save for the host system of a virtual machine (VM - VirtualBox OSE in my case) to execute malware. Can a virus break out and read or write data from the host system? ...
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In this case, does Virtualization gives more security?

A: running an OpenBSD machine with a httpd and a smtp server? vs. B: running an OpenBSD machine as virtualization host with QEMU having two guest OpenBSD system: one for smtp and one for httpd. ...
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Are Hyper-V Memory Snapshots secure/encrypted?

When dealing with encryption tools (TrueCrypt, Bitlocker and any successors) the passwords are always somewhere in memory. Therefore when there are memory dumps on a hard disk, for example in the ...
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105 views

How would one go about setting up a system with security in mind? [closed]

I run a standard laptop at home (dual-boot Fedora 20 and Windows 7; the Windows side is almost never used). Soon my other computer will be working again; it will have Windows 8.1 and some flavor of ...
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129 views

Design differences of tails and whonix concerning virtualization

Tails and Whonix both can run in VirtualBox. Tails doesn't recommends it for security reasons (https://tails.boum.org/doc/advanced_topics/virtualization/index.en.html), for Whonix it seems to be a ...
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56 views

Virtualisation: security on the host side

Virtualised environments are focused on isolating the guest OS. Using the VirtualBox model, the guest might be behind a virtual NAT and/or talk only with other VMs via internal networks, and only ...
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2k views

SFTP between guest virtual machine and its host

The System I am using Windows 7 host with Cygwin and a virtual machine running Linux. The actual running guest is an Arch Linux ISO. The Objective I want to share files between the Cygwin host and ...
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261 views

Untraceability of Virtual Machine [closed]

I'd like to know if it is possible to set a Virtual Machine as a protection against traceability. I would want my traffic to be impossible (or hard) to link to my current computer. I guess that the ...
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158 views

Plausible deniability regarding KeepassX files

I recently installed Guest Additions in my Windows 7 Virtual Machine because I could not stand working without widescreen and high resolution. I have read somewhere that this could be a possible ...
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493 views

Does a VM keylogger listen to the keyboard activities of the host?

I am running a Windows XP virtual machine on a Windows XP host machine. I use the VM for suspicious websites and software/applications. In the case a kaylogger will be installed on my VM: will this ...
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Replacement for DVL (Damn Vulnerable Linux)?

I've recently spotted that DVL (Damn Vulnerable Linux) has gone inactive. My first question is what happened to cause them to stop releasing it? Secondly, I have found some references to other ...
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171 views

How secure is user-mode Linux, in terms of protecting the host system?

Two questions about User-Mode Linux: Suppose that a privilege escalation attack is used to gain root in a UML guest. Assuming modern (3.0 or later) host and guest kernels, is it trivial to escape ...
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178 views

Can a malicious user do any harm using /dev/kvm?

I'd like to know if giving access to Intel version of /dev/kvm on Linux to a user that just wants to spawn VMs gives him any extra privileges. That is, are her VMs subject to process scheduling just ...
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VPS Privacy: OpenVZ vs KVM vs Xen

Considering OpenVZ, KVM and Xen: Which VM technology is the most difficult for the host's administrators to access given an encrypted root partition? Can I have a reasonable expectation that rogue ...
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Can a virus on the host affect the VM guest [duplicate]

let me explain my problem. The wifi on my macbook suddenly stopped working so tried to use my usb wifi adapter on a linux VM. But the funny thing is that nothing works on the guest vm either... Well ...
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149 views

How can I set up a secure virus laboratory? [duplicate]

I've been playing around with virtual operating systems for some time and began wondering: would it be possible to set up a virus laboratory in a virtual machine? If not, are there other ways that do ...
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353 views

Using a virtual machine for increased layer of privacy (w/ tor)?

One of my friends told me that running tor in a virtual machine Linux and then passing it through a proxy on the underlying Windows would provide in his words great security. Is this true?
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Can a guest virtual machine be compromised by a virus on the host machine?

All questions ask about the other way round, ie. can a virtual machine compromise the host. But I'm asking can a virus on the host machine compromise the guest virtual machine?
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Is a separate server needed for remotely accesing accounting software?

Wishing you all a great 2014. I hope this is the right section. Basically we have a Dell Poweredge R520 server in our office, and we now want to install some accounting software that can be accessed ...
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350 views

How safe is the VirtualBox NAT network adapter option?

I had an Ubuntu VM running and I was using Firefox in it to look at tutorials; then my antivirus detected an attempt to forcefully install a fake Java Upgrader. From what I know about the VirtualBox ...
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329 views

Virtualization / Cloud-Stack fingerprinting from running VM

How can the host environment (not just the OS) be identified from a running guest VM. To determine what the underlying host and virtualization stacks being used actually are. I.e. whether there's a ...
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How does a root kit work inside a virtual machine?

In my class, we are discussing virtual machine based root kits. I've research root kits, but could not find any information specifically talking about how root kits work inside of virtual machines ...
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Am I safe if I run untrusted applications inside a Virtual Machine [duplicate]

I have some untrusted software. I plan to run them on a guest Windows 7 on my host Windows 8 OS using Oracle VirtualBox. In the worst case, will only my guest OS be affected? Can the hacker access ...
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837 views

Is a VirtualBox Host-only Adapter safe?

I have a VM in VirtualBox with two network adapters: a Host-only adapter and a NAT adapter; I was wondering if the VM gets compromised, is my Host-only adapter putting my host in danger? --- ...
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Full disk encryption for server running virtual machines

I have a question about how to properly set up full disk encryption on a server running virtual machines. My setup is Windows 2012 with 2 VM's(Hyper-V) on it. I was looking into using Becrypt for ...
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Is dual-booting an OS more or less secure than running a virtual machine?

I run two operating systems on two separate disk partitions on the same physical machine (a modern MacBook Pro). In order to isolate them from each other, I've taken the following steps: Configured ...
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Does RNG play a role in PGP signing?

We have a Jenkins system that builds and PGP-signs software releases, and we are considering moving the signing component to an isolated VM instead of running it as part of the overall builder ...
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Where does a Hyper-V guest get its entropy when generating a certificate authority key pair?

According to findings by the EFF's SSL observatory, there are "tens of thousands of keys that offer effectively no security due to weak random number generation algorithm." My understanding of that ...
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Why does host's antivirus detect guest's malware?

I'm analyzing some malicious files on a VM and I'm noticing that every time I open a file, the host's antivirus detects it. Why does this happen? Is the malicious content escaping to the host?
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Is it appropriate to use haveged as a source of entropy on virtual machines?

While looking for solutions to entropy pool depletion on virtual machines, I came across an interesting project called haveged, which is based on the HAVEGE algorithm (HArdware Volatile Entropy ...
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935 views

What are the pros and cons of using live CDs vs VMs for malware analysis?

I'm planning on doing some malware research for a research project, and I was wondering what would be a better option for keeping my system safe from viruses accidentally infecting it. I'm only ...
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388 views

Isolating host machine from external network

How to prevent a host machine from sending/receiving packets with the following network configuration: eth0 - physical NIC :: not configured; tun0 - virtual NIC for VM which role is the gateway for ...
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3k views

Can a firewall blocking a guest virtual machine secure the host?

I have searched up whether a host is safe from its guest, and generally, it is said that, aside from vendor security flaws, a guest that is infected can infect the host over a shared network. So, ...
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How to manage security for multiple PC and VM?

I have a firewall VM which creates I have used to setup subnet for different purposes. For example: (fake ips, of course) 1.1.2.1/24 DMZ 1.1.3.1/24 Internal 1.1.5.1/24 security/logging I use ...
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364 views

Building an VM with Vagrant and connecting with ssh+2FA to protect a bitcoin wallet?

I would like to try to build a Virtualbox image to use with Vagrant. This is the features: Login with SSH + 2FA (Google Auth) No X No internet connection Copy unsigned transaction, sign it and ...
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646 views

Someone logged on my Centos VM; Can they attack the host OS?

I'm using Windows 7 and decided to learn Linux Administration (Centos 6.4) using Oracle VirtualBox to host the Linux system. In my network configuration I choose "Bridged Adapter". I set the VM's IP ...
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650 views

Instrumentation vs virtual machine introspection

I cannot differentiate between Instrumentation and Virtual machine introspection. Since the goal of Virtual Machine introspection is to examine the properties of a target through virtual machine ...
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520 views

Backup personal email on VPS - privacy, security and trust risks

FastMail.fm hosts my personal email account. Now they claim to have reliable backup services, but I'd like to have my own copy of my email archives. What I'd like to do is back up to my VPS, which ...
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How can an out-of-the-box (Windows) server not be secure? [closed]

Background: I'm considering switching from shared web hosting to VPS for added security. However - managed VPS's costs much more than unmanaged ones. So, assuming: I secured my website against any ...
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Shared hosting vs VPS

I have an Asp.net site. Which hosting system do I need to secure it adequately* against anyone reading private information that's on the server? This is assuming I'm not worried about the sysadmins ...
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Virtual Box security [duplicate]

I am using virtual box to run a secure machine. I am not fully confident in the hosts security. My assumptions are that of course the host can read the VM when the VM is running and that if the ...