The operating system is the software component that provides abstraction of physical hardware, and provides a generalized model for application software to execute without the need for specific hardware knowledge. Questions on the topic of operating system security should use this tag; you may also ...

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15 views

Could see image of previous session after restarting and switching OS

(I have GNU/Linux and Microsoft Windows installed.) I played a game on Microsoft Windows, quit the game, restarted the PC, and selected GNU/Linux. On the login screen, the background image was ...
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0answers
39 views

How to install dual system on PC? [on hold]

I would to install linux OS alongside to my Windows 8.1 OS, i tried once but failed. Please help me how to do that. thanks in advanced.
1
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2answers
142 views

Intrusion Detected - OS Attack

I have recently gotten a prompt from my anti virus stating that there was an intrusion with an OS attack as describe in the link below: ...
2
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2answers
88 views

the dangers of internet forums - what is FUD, what is not

I just visited a forum and a member knew what OS I was running without me saying anything (a not TOO common distro of linux). Now I'm not sure how he exactly he might have done it, or what information ...
0
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2answers
46 views

How to hide or obfuscate the type of OS?

I get the OS type of a remote host by: connecting to an open port (telnet <host> 22); using Nmap (nmap -A <host>). What are techniques and how to hide or change the information about ...
0
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1answer
31 views

What parameters to check to say that a computer running Windows is slow in responding because of infection?

When interaction between the user and the operating system is too slow (Windows become slow in responding to different user's request): what parameters could we check (and that we could use within a ...
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1answer
37 views

Can benign software modify Widnows DLL files?

On Windows (XP, 7, 8, NT ...): can .dll files be modified (in any manner) by benign programs/software already installed/running on the computer ?
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1answer
53 views

What registry windows keys malware target often?

I wonder what are the main registry windows keys malware target often ? I would love to code a program that will check the state of those windows registry keys for eventual modifications by malware.
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2answers
93 views

Is it possible to defeat the OS detection capabilities of network scanning tools?

Network scanning tools such as nmap have the capability to infer operating system version based upon lower-level system details. EG: TCP/IP stack behavior, etc. Are there any known methods to trick ...
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1answer
59 views

Proccess to exploit an OS vulnerability [closed]

What are the steps to use an exploit on an OS vulnerability? I tried the popular ms08-067 on an XP machine, following a guide found on the internet, discovering Metasploit etc., but I can't figure ...
1
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2answers
61 views

Can a drive-by download attack crash the OS?

Are there cases where a serious drive-by download attack could crash the operating system or the browser ?
0
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0answers
29 views

Where is the scope of ISO7816 standard family in smartcard operating systems interoperability?

ISO/ICE 7816 defines a series of standards for using in smart cards. For example, part 4 of these series named "Organization, security and commands for interchange" (which it's last edition has ...
3
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1answer
99 views

How does binary code execution vulnerability work on a modern OS?

In a modern OS I think that: the .text section where binary assembled CPU instructions are stored cannot be modified the .data/.bss section is marked as no-execute so that the information there will ...
1
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2answers
69 views

Automatic vs Manual

When it comes to technologies that directly affect information security, how do you determine when it is better to use an automatic option instead of a manual option, and vice versa? I already feel ...
11
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4answers
978 views

Are exploits platform dependent?

Looking over an overview of the newest published IE exploit, I noticed what I think is assembly. I don't know anything about exploit development, but I know a little about assembly. Seeing that ...
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2answers
109 views

What makes iOS more secure than other phone OS [closed]

Let's start off with an example. Here in Canada, credit card companies cannot upgrade you credit card limit. You need to make a request, that will then get analyzed and then, depending on your status ...
3
votes
4answers
179 views

One computer with multiple OSs in different drives

I use my personal computer for both programming work and gaming at my free time(and sometimes penetration testing) all these in different operating systems each. The problem is that I dont really ...
2
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1answer
46 views

After restoring from a (valid) full disk backup can malware still persit?

In the comments to this question it is mentioned that even after a backup recovery malware still can persist. Do I understand that correctly? How is this possible? If Acronis True Image is used to ...
0
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2answers
59 views

Is there a way to prevent software from accessing hardware IDs?

I think this is related to this question, but I would like to know if there's also a way to prevent "third party" applications from seeing hardware IDs (motherboard, hard disks, and others), or giving ...
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3answers
37 views

OS/Host age as a security attribute

Assuming the following: Operating arbitrary software in a completely read only environment is impractical. (While some software will operate RO without issue, it can be nigh impossible for other ...
0
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4answers
69 views

Isolate dual system

Say I have a computer with 2 operating systems: one secure, one... not so much. Now say I want to use the insecure system to do some work I can't do on the secure one. What is the best way to isolate ...
2
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1answer
50 views

Are files created in Chrome OS developer mode tracked by Google?

If I enable developer mode, then open a shell and create /some/directory/temp.txt, it is invisible to me through the Chrome Filesystem API. But does this mean that it's also invisible to Chrome OS ...
1
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0answers
41 views

Multiple Independent level of security vs Multi-level security

I am looking for a way to isolate two different networks from each other. Suppose we have 2 different network (public and private). I am looking for a way to connect to these two network via single ...
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2answers
78 views

How to use encryption on proprietary software

I wonder if it's possible to develop a secure point to point encryption application (a pgp message application for example) on a proprietary software. If such an application was developed, let say on ...
0
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2answers
155 views

How to identify a specific operating system with port scans?

According to the implementation of the TCP/IP stack an attacker is able to identify which operating system is running on a network device. Is there any paper or the like according on this topic?
2
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1answer
106 views

What does Msgsrvr and Scientia-ssdb do?

I'm having a task in a computer security class in school where I'm supposed to scan a host for open ports in order to find out what services is being run there. I have found out (among other things) ...
2
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1answer
381 views

Major differences between Kali and SecurityOnion

Curious about the major differences between Kali Linux and SecurityOnion. Do you think it would be easy or useful to replicate what has been done with SecurityOnion on Kali? Why is there such a ...
7
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5answers
1k views

Forensic research: What OS to use [closed]

I have been given an assignment from my school, in wich I have been given a Virtual image of a compromised system. The first thing I need to do is setup a environment to wich we can mount the image. I ...
0
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1answer
101 views

Do the Linux binary blobs contain any intentional security holes?

This question covers the risks of accepting Binary blobs in one's distribution. This may be a very paranoid conspiracy question. But considering all the topics regarding the NSA in 2013 one cannot ...
2
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2answers
333 views

Basic Security Knowledge [closed]

Perhaps I am being both naive and overly ambitious in my first post but I have a huge interest in learning about network and system security and am at a loss as to where to begin. I realize that stack ...
2
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4answers
457 views

Tails like OS for Smartphones

In Jacob Applebaum's latest talk at the 30c3 conference, he advised all journalists to use Tails or similar OS for their laptops. Does anyone know of a similar OS or functionality for Smartphones? ...
11
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7answers
1k views

Can hackers detect my operating system?

I've seen people demonstrating the use of backtrack to attack VMs. In one of the components of backtrack, it shows the operating system of the targets. Since support for Windows XP is ending soon, i ...
0
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1answer
50 views

Trust a possibly compromised system for iso downloads

My only operational computer has shown some wierd signs like disapearing logs, rotated logs gone random files getting updated and so on. Tho this is my only operational computer and I have decided to ...
2
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1answer
1k views

Where does Active Directory store user hashes?

During a penetration test for a client, having an infrastructure with multiple (5) Active Directory Servers (Win Serv 2008 R2)... I found a nice exploit to drop a system shell in one of the servers, ...
0
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0answers
18 views

Privacy of my files and messages while another device is connected to my iphone [duplicate]

If someone is connected to wifi through my device can they copy my files documents or messages to their device
3
votes
3answers
396 views

Is Chrome in Metro Mode more secure than Chrome in Desktop Mode?

With Windows 8, Microsoft introduces the Metro Apps which run in a sandbox environment, and therefore should be more secure. I would be interested to know if this higher security that the metro apps ...
2
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0answers
57 views

Creating New Acc in Mac Mail 1st Connect to Server not SSL is uname & pw tx secure?

It appears that whenever you set up a new mail account on Mac Mail on OS X (or iPhone, iPad etc), that as soon as you enter the server and the mail account user name and password, Mac Apple-Mail tries ...
3
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0answers
108 views

BSD encryption advantages [closed]

If someone who knows about the BSD project has a moment to answer this, I'm wondering a few things about the encryption used. It's more than what I'm finding in the docs and on Wiki/Google (even the ...
0
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1answer
57 views

access control-intersection of subjects’ permissions

In the book named "operating system security", I read this paragraph: "Protection domains can also be constructed from an intersection of the associated subjects (e.g., Windows 2000 Restricted ...
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0answers
50 views

DLL preloading attack - are IAT libraries affected too?

I'm about to distribute a dll library (there's also a linux version) to my users but I'm afraid of dll preloading attacks (i.e. someone substituting its malicious dll to get called by mine and gain ...
6
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4answers
566 views

Security of different OS

At my work we are given a computer to set up at home so if we ever feel like working from home we can do so. The thing is that whenever it comes to developing for java I always prefer using windows or ...
42
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5answers
3k views

What does Mark Shuttleworth mean by “we have root”?

In a blog post in response to the Amazon privacy controversy, Mark Shuttleworth wrote: Don’t trust us? Erm, we have root. You do trust us with your data already. You trust us not to screw up on ...
2
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2answers
138 views

Is bugged CPU mean “gameover” for whole Computer? [closed]

I'm looking for answer on such question. Imagine that CPU bugged on the factory simply like Blue Pill, but for the network's interconnections. How exactly firewall of OS could protect station ...
0
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2answers
162 views

Preventing exploits like ROP and Return-to-libc in modern Operating systems

As I was reading about the advanced exploits such as Return Oriented Programming (ROP), Retun-to-libc, etc., I came across many defenses to these attacks including techniques like ASLR, kBouncer, ROP ...
0
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1answer
168 views

Have there been any instances of malware in custom ROMs for Android?

Have there been any instances of malware or spyware packaged in custom ROMs, for example a malicious email app pre-installed that records your server IMAP username and password and forwards it to a ...
1
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1answer
271 views

Spoofing OS during browsing

I am using http://www.mybrowserinfo.com/ to gather some info about me while browsing. I want to change my OS to appear that its a Windows Xp machine.(No VM solutions please:D) If you have any ...
0
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2answers
107 views

VM security, how to access main OS

Is there any way for me to access the main computer if the VM has been infected? Let's say that I am running Debian or ubuntu in a VM and the main computer uses Windows (or other way around just so ...
0
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1answer
3k views

What is the most secure operating system out there? [closed]

Unfortunately, endpoint security is so terrifically weak that NSA can frequently find ways around it. -Edward Snowden Would it be safe to assume that every popular linux distro out there has a ...
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2answers
178 views

Android OS Security [closed]

I am somewhat confused in terms of how secure Android OS is and how updates work on Android. Are there security fixes on each release? How can I keep track for Android exploits and what are the most ...
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2answers
870 views

Remotely destroy all the data from a laptop having windows? [closed]

How can i remotely destroy all the data from a laptop having windows 7 as the OS? Is there a way to do that?