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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What registry windows keys malwares 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
404 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?
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56 views

Loading of fake Library attack

Let's supose i have an executable file a.exe and it uses stdlib for some operations. Let's suppose an attacker changes the system stdlib to a "malicious" stdlib. The implications of this might be ...
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1answer
47 views

Is there a solution for runing processes in encrypted mode on runtime?

Is there any solution for securely running encrypted processes on an untrusted machine over the WAN? In public clouding, you can split your processes and send process request over the WAN, but you ...
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1answer
117 views

Why doesn't the OS give every application a secret password?

As far as I understand if Dropbox wants to automatically run in the background without asking the user for a password it has to store the password somewhere on the harddrive and has currently no way ...
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2answers
72 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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1answer
137 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 ...
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1answer
164 views

How is Thread local storage used by malware/Virus?

I have been told that code in TLS is run before the entry point of an exe is reached ,so if one puts a breakpoint on this TLS address he/she could debug the behavior of the virus.Can Fiber local ...
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1answer
50 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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69 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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70 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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1answer
4k 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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1answer
46 views

Does Linux and Mac OSX have built-in Credential/Password Managers with API access? [closed]

Does Linux and Mac OSX have built-in Credential/Password Managers with API access like Windows has with its CredMan (CredWrite, etc). It would be preferrable if they could be used without the need to ...
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0answers
209 views

Pentesting an ATM OS upgraded from Windows XP to Windows 7

How to approach penetration testing of a ATM OS that was upgraded from Windows XP to Windows 7? From what I gather, the testing flow should be as follows: Architectural Review Pentesting OS and ...
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0answers
69 views

Bitlocker with bootloader on a seperate drive

I believe the answer to this may simply be it's not possible but all the same: Is it possible to have an OS partition protected by bitlocker loaded from a seperate drive with another bootloader ...
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1answer
85 views

Recommened books for learning operation system [closed]

I see other similar question here. I want to become Malware analyst. I have learn to program in Python and C++(not on expert level but fairly good). Before I continue with Assembly language I want to ...
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2answers
209 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
128 views

High Level NSA Target, Help/Feasibility [closed]

I would like to know the feasibility of certain kinds of attacks. To be clear, assume the target is a high-level priority of the NSA. Is an OS such as tails useless against root-kits/keyloggers, ...
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1answer
674 views

Top Ten Security Weaknesses of a Networked Computer [closed]

I'm looking for a list of what you would consider to be the Top Ten Security Weaknesses of a Networked Computer, can be Windows or Linux specific but ones that apply to both are better. I'm not as ...
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1answer
128 views

Possible ways to test security for Windows Phone 7 or iOS devices [closed]

I'm trying to test the security features of different types of OSs available, and I decided to narrow this down to the Windows Phone 7 and iOS operating systems. I will be testing both my Nokia 800 ...
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2answers
102 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 ...
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3answers
38 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 ...
-2
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1answer
138 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 ...
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2answers
137 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 ...
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2answers
12k views

Why do some people think Linux is more secure than Windows? [duplicate]

I have no idea if Linux is more secure than windows. I think Linux is more secure but I want to know what is going at kernel level. Somebody told me that Linux have only one main kernel and has it ...
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2answers
281 views

What technologies are recommended for E-banking? [closed]

If a Linux user need use his bank account from Internet, then what technologies and procedures should use? Is better to use the Guest Account (if exist) of the OS, or an Administrator Account? What ...
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2answers
5k 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?