A family of graphical operating systems produced by Microsoft. Windows includes both server and destop operating systems. Early versions relied on MS-DOS while current versions have evolved from Windows NT. Please do not use this tag for X, but use [x-windows] instead.

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2answers
470 views

How can I restrict what an application can do with my computer?

Often when I install applications on my computer, I realize that I need to trust the application because it can do what ever it want with my computer, e.g. accessing files, listen to my keyboard, ...
11
votes
0answers
777 views

MPPE-Send and Receive key derivation from MS-CHAPv2

I am trying to get the MS-MPPE-Send-key and MS-MPPE-Recv-key from the MS-CHAPv2 challenge material. I am able to follow the RFCs 2548 3078 and 3079 to the step of getting the GetNewKeyFromSHA() it is ...
10
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5answers
7k views

Encrypting files in a windows environment

We have certain client data which must be encrypted at all times. The part we have been struggling with is encrypting files on network shares. Currently we have network folders encrypted using PGP ...
10
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2answers
672 views

How insecure is PowerShell Web Access?

Windows Server 2012 comes with a new feature that allows you to administrate the server via a PowerShell command line in any modern browser including Smartphones. This sounds cool and scary at the ...
10
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2answers
4k views

Detecting reflective DLL injection

In the past few years, malware (and some pen-test tools like Metasploit's meterpreter payload) have begun to use reflective DLL injection (PDF) to load a DLL into the memory of a process. The benefit ...
10
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1answer
1k views

How does LSA authentication on Windows work?

I'm trying to understand the security protocols on Windows from a high level as part of legal research into cybercrime, and I'm having difficulty figuring out where to focus my research. I've already ...
10
votes
1answer
271 views

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 ...
9
votes
4answers
4k views

Is Changing a File Type and Name an Effective Security Solution?

Is renaming folders & files and changing file types an effective solution for file security of a PC? I am an application programmer and have an extensive background in it. I have written a ...
9
votes
2answers
56k views

How to figure out if someone has been using TeamViewer 8 to access my computer when I was not here?

I came to my computer today and have not been here since monday afternoon. I am using windows 7. There were some error messages showing even on the log in screen about memory violations done by ...
9
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3answers
2k views

Can you extract memory contents from a hibernated Windows machine?

In a recent discussion about hardware hacks, attacks surrounding Windows hibernate popped up. I am not entirely convinced that it would be viable to get stuff out of the memory saved to disk. When ...
9
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3answers
2k views

How can I mitigate the threat that DPAPick poses to my DPAPI protected data?

The Windows Data Protection API (DPAPI) is the suggested method for storing secrets on Windows systems (such as database passwords required by ASP.Net applications). DPAPick was presented at BlackHat ...
9
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2answers
758 views

Running Windows Update when abroad

Is it safer or more dangerous to run Windows Update when abroad and using a WPA2 connection to a random cafe's wi-fi? Obviously good news: you get the latest security tweaks. Possible bad news: just ...
9
votes
3answers
7k views

How can I enumerate all the saved RSA keys in the Microsoft CSP?

I have an application that is creating several keys and storing them in various stores (in this case the Machine store). How can I enumerate all the keys on a given Windows system? ...
9
votes
3answers
619 views

Reading keystrokes of other applications

Is it possible for other application running in the OS to read the keystrokes that my application uses? What about mouse events and window handles? Is there any security wall that the OS uses to ...
9
votes
2answers
1k views

Does http.sys vulnerability affect Windows not running any webservers?

Windows kernel level HTTP driver http.sys is affected by remote code execution vulnerability (MS15-034). This security update resolves a vulnerability in Microsoft Windows. The vulnerability ...
9
votes
3answers
8k views

Security of passwords remembered by Windows

Does Windows XP or Windows 7 encrypt saved passwords? I'm assuming that the user uses local password to logon. The user then uses his own computer to connect to server in work and sets the "remember ...
9
votes
3answers
904 views

How can TOCTTOU vulnerabilities within the Windows OS be mitigated?

What are some ways to mitigate the time-of-check-to-time-of-use issues that apply to Windows permissions? Example: End-user is added to the local Administrators group in order to install software, ...
9
votes
1answer
281 views

Do the Windows shared source files compile into the same binaries as the retail version?

Microsoft makes the Windows source code available to certain third party organisations such as the US and foreign governments, universities etc. This is their Shared Source Initiative Is this a ...
9
votes
2answers
357 views

How is UAC a security improvement?

What does User Account Control on Windows offer in terms of security? It's just an extra click to potentially run a virus.
9
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2answers
161 views

Does Centralisation Decrease the Probability but Increase the Damage of Exploits?

This question is, perhaps, a tad too abstract for a Q&A site. But it's been playing on my mind for a while, so I'm throwing it out there. Modern systems seem to be increasingly centralised. An ...
9
votes
4answers
1k views

A firewall without any extra features [closed]

I have Kaspersky Internet Security (KIS) installed on my system. I always keep it disabled, yet using a few practices, I kept my system virus free for years: I disabled autorun using these tricks; I ...
9
votes
1answer
976 views

How to know the windows security dialog asking for username password is genuine?

I recently faced one issue. It appeared my outlook launched a dialog saying it needed password. It looked like this I noticed the "->" character in the domain name which usually it auto fills. Also ...
8
votes
4answers
919 views

Is disabling auto-run enough to protect against malicious code from removable media automatically infecting a machine?

If I block auto-run on a windows machine, is this enough to protect it from malicious code (assuming I don't run any files manually)? Or are there known vulnerabilities that may cause infection?
8
votes
3answers
3k views

Am I protected from USB autorun malware on Windows 7?

As far as I know, the autorun.inf problem (the possibility of automatically executing code when a USB stick is plugged in) was solved through Windows Updates for XP, and on 7 it is no longer possible ...
8
votes
3answers
951 views

Can I use the same keyboard on both my infected and non-infected computers?

I have a computer which is virus infected. Can I use the same keyboard on both it and a "safe/clean" computer without fear? Keyboards these days seem to come with built in software and thus must ...
8
votes
1answer
1k views

Why is Windows Explorer making external connections?

I'm seeing Windows Explorer (explorer.exe) establishing connections to external IPs: Also verified with cmd: C:\Windows\system32>tasklist|find "explorer.exe" explorer.exe 4052 ...
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8answers
5k views

Linux or Windows- the security issue [duplicate]

Possible Duplicate: Open Source vs Closed Source Systems Almost anyone who has grown up on Windows must have had the notion (that I had) of Linux being more secure than Windows- one of ...
8
votes
4answers
807 views

How to track a laptop after theft?

Our company had a break-in this evening and a laptop was stolen. The data on the laptop was not super-sensitive (luckily); however, we would like to be able to track the laptop if at all possible. ...
8
votes
1answer
187 views

Why would it be preferable for a system to shut down when the security log is full?

When running in a configuration that supports Common Criteria, Windows must be configured to shut down when the security event log is full. Why is this a preferable option?
8
votes
2answers
1k views

Can a webcam be turned on when disabled in Windows' device manager?

In addition to whether a webcam can be turned on without the indicator light, I was wondering if disabling the device in Windows' device manager is a good option. Of course when your system is ...
8
votes
3answers
5k views

How to manage admin rights for helpdesk staff?

My question is about issuing administrative rights to helpdesk staff in a large Active Directory setting. Helpdesk staff commonly require administrative rights to provide support for end users. I ...
8
votes
3answers
388 views

Does setting a user password on Windows XP help protect against remote exploits compared to no password?

In a typical home user situation with a PC connected to the internet via a router, suppose we are not concerned with protecting the machine from people with physical access. Does setting a password on ...
8
votes
4answers
18k views

how to import a private key in windows

Say I have an X.509 cert and a private key that corresponds to it. I can import X.509 certs easily enough into Windows but what about private keys? Is the only way I can do that by converting both ...
8
votes
2answers
883 views

Local File Download vulnerability - What files can be downloaded to potentially compromise a windows system?

On Linux I have a good idea on what files I would like to get ahold of when you are sitting on a regular file download vulnerability. Any file on the entire OS system is accessible for download, which ...
8
votes
5answers
12k views

How to trace a DDOS attack on a dedicated server and block it?

I have a dedicated server and I'm hosting a game, and the web page (using Apache) for account registering. The server is being ddosed since 8 months ago till today. I've tried to talk with the server ...
8
votes
1answer
556 views

Better way to import Win32 APIs from injected shellcode

I'm injecting native x86 code into a .NET application, via a TLS callback in the binary image. Unfortunately, .NET executables only import mscorlib.dll within the PE, and have kernel32.dll mapped ...
8
votes
2answers
588 views

How can Network Disconnect be implemented for RDP on a Windows system (2003/XP or later)?

From NIST SP 800-53, Rev. 3: SC-10 NETWORK DISCONNECT Control: The information system terminates the network connection associated with a communications session at the end of the session or ...
7
votes
4answers
637 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 ...
7
votes
6answers
2k views

Using linux to combat windows flash drive malware?

I just put an old flash drive which i used with a windows machine into my linux. I noticed many files, mostly exes which were never visible in windows (my windows does not hide hidden files and ...
7
votes
2answers
8k views

Can Keyloggers get passwords from Windows 7/8 Logon Screen?

If yes, do you know some examples of Keyloggers capable of perform this? EDIT: I mean when logon in the windows right after power on the PC and/or when locked with Win+L.
7
votes
2answers
459 views

What features do you look for in an Enterprise Log Management solution?

This question is for IT Pros, and people who manage a company's infrastructure. Developers should see this related answer for tools geared for them. What are your requirements for such a Event Log ...
7
votes
5answers
971 views

How can I secure a network share from the insider threat?

We have a network share that contains thousands of files. I am concerned that anyone with access to the internet could copy that information to a CD. In addition to disabling all removable media, ...
7
votes
3answers
3k views

HIDS detection system and registry changes

I use OSSEC HIDS to monitor XP and Windows 7 Operating Systems. When OSSEC flags changes in the Windows registry, I have no idea where to go for to look for information and identify if the changes ...
7
votes
2answers
14k views

Windows groups and permissions: Authenticated Users group meaning

What is the purpose of the "Authenticated Users" group in Windows? Under Linux it doesn't exist and I'm starting to think this is another idiosyncrasy or over-engineering of the Windows operating ...
7
votes
2answers
1k views

When taking ownership of a TPM in Windows 7, how is the SRK derived from the password?

When you take ownership of a TPM in Windows 7 you encounter a screen like this: Based on this document, it is my understanding that completing this dialog box somehow results in the generation of ...
7
votes
2answers
757 views

How can IA-5(1)(b) be enforced on Windows systems?

Note: I've also posted a question for this issue on non-Windows systems. In NIST SP 800-53 Rev. 3, IA-5 is the control addressing "Authenticator Management". The requirements in this control include ...
7
votes
1answer
3k views

How to whitelist an Amazon ELB in a(ny) firewall?

We have a customer with a very locked-down network. Any outbound connections require whitelisting of the port and IP address. However, we are running our system behind an Amazon Elastic Load Balancer ...
7
votes
2answers
1k views

Breaking out of a strict linux sandbox running virtually under windows: do the linux-sandbox access control policies even matter?

I am developing an application which will run untrusted code. I have been designing it for linux, thinking that I can just run it in a virtual machine on windows when the need arises. The linux ...
7
votes
2answers
867 views

What information is exposed by simply opening an RDP connection to the internet?

Microsoft, Rackspace and other hosted providers allows people to RDP into that server. Here are a few examples: Microsoft has something called "Azure Connect" it is very easy to expose a domain ...
7
votes
2answers
4k views

Can running a browser in Windows Compatibility Mode be a security issue?

I have several clients that are having trouble logging into vendor's web service. When talking to the vendor about the issue, they told me to set them up with Chrome running in Windows XP ...