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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Does it matter which platform a file is scanned on for malware?

Different operating systems use different file types and file systems. Does it make a difference to a virus scan which system it is being run on and what type of malware it's looking for? I ask ...
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1answer
262 views

What do 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 are being run there. I have found out (among other things) ...
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0answers
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PID randomization benefits

What is the concrete advantage of using random PIDs instead of traditional sequential ones? Some times ago, I've read an article in the french magazine MISC (no. 74 - July/August, 2014) publishing a ...
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0answers
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What protections are put in place to prevent rootkits from getting ring 0 access?

I've been learning about What is a rootkit? As well as rootkit building and general system architecture. I have read that there are "User mode" rootkits that run in ring 3. But these aren't the ...
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0answers
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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 ...
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0answers
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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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0answers
66 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 ...
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0answers
183 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
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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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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 ...