Related to security concerns specific to the Microsoft Windows operating system itself. For security of applications that happen to be running on Windows, please use [appsec]. For the X Window System, please use [x11].

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2answers
5k views

how to identify p2p on network

Im trying to work out if the traffic in the below image is P2P file sharing? If you notice the source ports are all random but the time 17.24 from c.port 58338 runs for a good length maybe about 400 ...
3
votes
0answers
203 views

How secure is HTTP basic authentication over SSL? [duplicate]

Possible Duplicate: Is BASIC-Auth secure if done over HTTPS? I want to set up a web server on a computer at home which will basically do no more than send the browser a file which contains ...
1
vote
2answers
792 views

Closing handles of a process as a regular user

Here's the situation: As an adminstrator, I am able to stall the application by closing 2 handles held by the process. (Using ProcExplorer) . Is there any way/hack I can use to close file handles ...
1
vote
1answer
853 views

How to fix the audit failure in our web server

We noticed that we are getting the following audit failure logs in our web server. The workstation is not in our network. Can anybody help me how to isolate and prevent this from happening? An ...
4
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3answers
12k views

How do you properly setup Tor on Windows 7?

How do you properly setup Tor on a Windows 7 box to guarantee that ALL connections will run through Tor?
6
votes
4answers
614 views

Would running VMs inside of VMs be a more secure way to study viruses, etc?

I was reading this post on SuperUser, and it made me wonder about security. I've read somewhere else that some viruses/malware/whatever CAN break outside of a VM... and then infect the host OS. BUT, ...
0
votes
1answer
953 views

Suspicious .exe set to run at startup: Determine if file exists still

When I open MSConfig and look at all the applications set to run on startup there is a suspicious file set to run at startup. I have disabled the .exe to not run at startup but I want to delete the ...
2
votes
1answer
326 views

Windows 8 in a VDI environment and the use of Secure Boot

I have a question, How would secure boot be implemented in a virtulized environment, say XEN hypervisor with multiple guest OS's including Windows 8 guest VM? does the guest VM need access to the ...
7
votes
1answer
3k views

NVidia update service creates local account on system. Does anyone know the users password?

Nvidia update service has created a local user on several of my boxes. Does anyone know its password? I recon it could possible be leveraged as an entry way for an attacker. Details: wmic ...
0
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1answer
559 views

Can the FiddlerCore library be used for Malware (e.g. MitM attacks)?

I've used the excellent Fiddler web debugging software before and have recently come across the Fiddler Core headless .NET library which gives you all the abilities of Fiddler in library form. It's ...
8
votes
7answers
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 ...
2
votes
2answers
182 views

Why would encrypting data result in a call to a Domain Controller

This KB article mentions an issue where signing or encrypting information may result in a network IO call to a Domain Controller. Apparently the RSACryptoServiceProvider's SignData and VerifyData ...
4
votes
1answer
502 views

A simple example for showing the use of Data Execution Prevention (DEP) security feature

I am finding it really hard to figure out why we need a DEP! Microsoft states this about DEP: The primary benefit of DEP is to help prevent code execution from data pages. Typically, code ...
4
votes
4answers
7k views

Detecting or preventing process memory injections on Windows (anti-hack)

Standard hacking case. Hack injects into a started game process and writes over process memory using WriteProcessMemory call. The situation is like this: we are hosting a game server clients join ...
2
votes
1answer
830 views

Smart card compatible with Schlumberger (Gemalto) Cryptoflex 16K and USB reader

Another question related to previous ones A SW system constructed with Microsoft CNG can be FIPS 140-2 Level 2 Compliant? and About performance of Smard card for performing 3DES in a MD5 hash We need ...
2
votes
1answer
483 views

About performance of Smart card for performing 3DES in a MD5 hash

Another question related to previous, unanswered A SW system constructed with Microsoft CNG can be FIPS 140-2 Level 2 Compliant? Another alternative is to store the keys in a Smart card permanently ...
5
votes
2answers
594 views

A SW system constructed with Microsoft CNG can be FIPS 140-2 Level 2 Compliant?

We have to design and construct a system that signs files with sensible data, like evidences/proofs. The sign process is simple, basically calculate MD5 of the file content and encrypt the MD5 result ...
2
votes
1answer
225 views

What does a IT Security Pro need to know about .NET Code Access Security (CAS)?

Background In .NET 1.0 through 3.5 administrators could administer the runtime security policy through mscorcfg. Aparrently many of these security features have been removed in .NET 4.0,. ...
2
votes
1answer
1k views

Generate one CSR for two Windows servers

I have two Windows 2008 R2 servers which will be hosting a load balanced website. I will generate a private key and use it to generate a CSR using OpenSSL. How can I make this CSR (or the resulting ...
0
votes
2answers
109 views

Should a host based firewall have an API accessible to other applications?

Some people are hesitant to use Windows Firewall because it allows software to alter its state via an API. The benefit of this is that the Firewall configuration can be centrally manged in GPO. On ...
1
vote
2answers
323 views

Elcomsoft Advanced EFS Data Recovery

The Elcomsoft "Advanced EFS Data Recovery" whitepaper says First the program tries to do this automatically, for example trying to extract the password from cache or system files, checking simple ...
5
votes
1answer
5k views

What's the risk of changing permissions of the Security Eventlog registry key to IT operations?

Background Many developers are unnecessarily lowering the security of the event log, or requiring applications to run in Administrator mode just so they can use the event log with this C# or VB code: ...
17
votes
3answers
1k views

Why do rootkits hide in drivers?

A lot of rootkits for Windows (maybe even Linux?) do hide in drivers. Why is that? One reason I can think of is that using a driver they run in kernel mode and have full system access, but aren't ...
1
vote
1answer
212 views

Is the javascript browser tool at printfriendly.com secure for my browser

I use Win Xp Home with SP3 and am pretty aware of security problems. I use Palemoon 12.1, a version of Firefox optimized for windows. I usually use printfriendly bookmarklet to create printable pages ...
3
votes
2answers
542 views

Mitigations for Windows clients that don't support OCSP Nonces

Windows 7 clients (and older) don't support NONCES, a key feature used in securing the revocation check. Without a NONCE a MITM could replay a previously signed response and alter the validation of ...
5
votes
1answer
18k views

What is updated with “Update Root Certificates” enabled? What is the equivalent in Windows 2008R2?

What root certificates are/are not updated when the following checkbox is checked? Additional questions If I manually remove a root certificate, will this service replace that very certificate? ...
1
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3answers
2k views

How does DCOM authentication compare to RPC based authentication/auth?

The following paragraph from MSFT Best Practices for 2003 PKI says Windows 2000 authenticated via RPC vs 2003 that authenticates using DCOM A CA running Windows Server 2003, Enterprise Edition, ...
29
votes
3answers
193k views

How do I clear cached credentials from my Windows Profile?

Windows seems to be saving my credentials for a variety of applications (terminal servers, etc) and I'd like to purge this data. How can I backup and purge this data?
2
votes
1answer
5k views

Clearing IE temp files don't erase CRL history. How can this be purged?

Even after I purge all my Internet temporary files, I still see information when I type certutil -urlcache How do I purge this information?
2
votes
3answers
2k views

What is the most secure way to do OCSP signing without creating validation loops?

I'd like to enable the most secure OCSP validation that Windows 2008 SP1 and newer support. Based on the following information, am I required to implement id-pkix-ocsp-nocheck on my OCSP ...
3
votes
1answer
2k views

What are attribute certificates? Why would someone partition a certificate by reason codes?

In "How Certificate Revocation Works" a brief mention of Attribute Certificate and Reason Code partition is made: If validated by a client that supports partitioned and indirect CRLs, the IDP ...
6
votes
1answer
3k views

Can a certificate have multiple chains and multiple self-signed roots?

The following MSFT document has this paragraph: All possible certificate chains are built using locally cached certificates. If none of the certificate chains ends in a self-signed ...
1
vote
1answer
7k views

What are the OIDs (KU and EKU) necessary for Smart Card Authentication in Windows?

MSFT smart card authentication is listed in PKINIT RFC 4556 however I don't see any OIDs listed. Based on this and this KB article the EKU section of the certificate should contain "Client ...
18
votes
4answers
15k views

Checklist on building an Offline Root & Intermediate Certificate Authority (CA)

Microsoft allows a CA to use Cryptography Next Generation (CNG) and advises of incompatibility issues for clients that do not support this suite. Here is an image of the default cryptography settings ...
1
vote
1answer
122 views

Does the “Special Groups” feature in Vista, 2008, R2, and Windows 7 apply to File System access?

The Windows 2008R2 "Special Groups" feature allows for detailed tracking of domain administrators when they log into the machine. This is accomplished by editing a registry key or the LSA. Is there a ...
1
vote
1answer
2k views

How do these Windows services affect the security of Windows Firewall?

Its common to disable unneeded services in Windows 2008 R2, but sometimes I come across installations that use Windows Firewall and related services. More info: see service dependencies for Windows ...
1
vote
1answer
822 views

What encryption is possible for ReadyBoost?

ReadyBoost is a technology to assist getting Windows Vista or 7 to load faster on memory-constrained PC's. Since a USB stick can be easily removed, what security options are available for this ...
0
votes
1answer
695 views

1and1 Dedicated Server got compromised (Windows Server 2003)

We had couple of dedicated servers rented on 1and1 hosting. In past we had situation where our server has got compromised and intruders were able to hack into the Windows 2003 standard edition and ...
2
votes
4answers
163 views

lock for asp.net developer using vs 2010 and win xp?

I am hiring few extra trainees who will use their personal laptop at my office to work on .net projects. I want to restrict the code/file access in their laptops with password. Like when they get in ...
8
votes
5answers
13k 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 ...
1
vote
1answer
367 views

Shellcode for higher file privileges

I'm learning exploits from the book Hacking: The Art of Exploitation. The shellcode below was written to enable higher privilege access to files. \x31\xc0\x31\xdb\x31\xc9\x99\xb0\xa4\xcd\x80 ...
50
votes
1answer
3k views

What's the risk if I accidently type my password into a username field (Windows logon)?

I'm used to logging into my personal Mac which is a password-only field (like waking from sleep mode). Sometimes I have to use a Windows network on which I have an account, but of course I have to ...
7
votes
3answers
4k 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 ...
1
vote
3answers
220 views

Maintain User Privileges After Shutdown in Windows XP?

Is it possible, in Windows XP, to maintain user privileges of a command shell after a reboot? For example, I'm running as a non-privileged account LocalMachine\Pete, but have a shell running as ...
2
votes
2answers
2k views

Logging and Metrics for DEP, EMET, and Related Mitigations

Is it possible to collect metrics or generate alerts when one of EMET's suite of mitigations prevents code execution? Ideally I'd want to be able to collect and analyze data to support statements ...
-3
votes
2answers
291 views

Will winlock virus really delete information after 12 hours? [closed]

I've got virus which tells that all data will be deleted after 12 hours. I cleaned autorun and now scaning my computer with anti-virus, but still is this message just to scary people or is this virus ...
2
votes
3answers
2k views

How can winlock virus change Windows Registry without admin permission?

When you try to install program you'll always asked about administrator permission. Same thing when you try to user 'regedit' command. So I'm interested in how does this virus works. How can it edit ...
7
votes
4answers
8k views

Preferred UAC configuration in Enterprises that use Login scripts to map drives?

In Windows 7, Vista and newer OS's, UAC will prevent logon scripts from mapping hard drives so that the following logon script code won't work: Dim WshNetwork Set WshNetwork = ...
6
votes
4answers
13k views

Secure use of psexec or better alternative to it

I want to remotely start VMWare virtual machines (I own VMWare Workstation) and to this end I need to execute on host something like "vmrun -T ws H:\VMWare\VM1\VM1.vmx nogui" with user desktop ...
1
vote
1answer
1k views

Should I use Windows' Cryptographic Service Provider to generate RSA keys?

If I want to generate strong high quality RSA keys, is there any reason not to use Microsoft's built-in cryptography system? Or should I use something open source like OpenSSL or Bouncy Castle? I'm ...