Tag: directx
It is nothing short of ironic that game password stealing malware is being associated with an exploit designed to target a vulnerability in DirectX. But Microsoft officially confirmed that malicious code designed to harvest account credentials for online games had been detected bundled with exploits targeting the DirectShow vulnerability impacting Windows 2000 Service Pack 4, Windows XP, and Windows Server 2003.
The flaw is Critical, the company warned in May 2009, when it revealed that users executing malicious QuickTime media files were at risk of remote code execution.
“Users, upon visiting a specially constructed web page that invokes the vulnerable media plug-in, will encounter exploit shellcode, which further execute and download additional malware to the infected machines. Intending to bypass antimalware protection, malware binaries are encrypted in the download data stream. New dog, same old tricks. To wrap up the attack scene, under the cover of the new exploits are the old long-lived online-game password stealers: PWS:Win32/Wowsteal.AP (drops PWS:Win32/Wowsteal.AP.dll); TrojanDropper:Win32/Dozmot.C (drops PWS:Win32/Dozmot.C and VirTool:WinNT/Dozmot.A); and TrojanSpy:Win32/Lydra.AE,” revealed Microsoft’s Lena Lin, Cristian Craioveanu, Josh Phillips and Patrick Nolan. Read More»
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Windows 7 RC, as well as its precursor, Windows Vista, and the R2 and RTM/SP1 releases of Windows Server 2008 are immune to a zero-day vulnerability affecting DirectX on older versions of Windows. The security hole makes Windows 2000 Service Pack 4, Windows XP (including SP2 and SP3), and Windows Server 2003 vulnerable to exploits but not the later versions of the Windows client and server operating systems, since the code containing the flaw was removed in Vista.
Christopher Budd, security response communications lead for Microsoft, confirmed that the company was “aware of limited, active attacks that exploit this vulnerability.” Budd explained that the vulnerable code was contained in the QuickTime parser in Microsoft DirectShow. DirectX 7.0, DirectX 8.1 and DirectX 9.0 are impacted.
“An attacker would try and exploit the vulnerability by crafting a specially formed video file and then posting it on a website or sending it as an attachment in e-mail. While this isn’t a browser vulnerability, because the vulnerability is in DirectShow, a browser-based vector is potentially accessible through any browser using media plug-ins that use DirectShow. Also, we’ve verified that it is possible to direct calls to DirectShow specifically, even if Apple’s QuickTime (which is not vulnerable) is installed,” Budd stated. Read More»
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Microsoft has refreshed its lineup of DirectX offerings at the start of this week, and the company is by no means shy of focusing the spotlight on the evolution of the graphics technology as Windows 7 is contouring. The software giant is offering fresh Technical Previews of Direct2D, DirectWrite, and DXGI 1.1, but also a new TP release of Windows 7/Direct3D 11. The components are available for download as an integral part of the March 2009 iteration of the DirectX Software Development Kit, which is accompanied by the DirectX End-User Runtimes (March 2009) and the DirectX End-User Runtime Web Installer. Microsoft delivered the first taste of Windows 7 DirectX 11 through the SDK back in November 2008.
Obviously the releases are aimed at a professional audience. Developers will be able to leverage the latest release of the SDK, combining the DirectX Runtime and additional software designed to permit the building of DirectX compliant solutions. With the March 2009 DirectX update, Microsoft has refreshed the tools and utilities included with the software development kit, but also the code samples, documentation, and the 32-bit and 64-bit runtime debug files. Read More»
Posted in Software, Windows 7 | No Comments »
January 14, 2009 by
Jason Update Vista’s DirectX9 files for better game compatibility
One of the fixes for getting games to run in Vista that do not normally (such as FEAR and 3Dmark06 as two examples) is relatively simple. These games require the latest version of Directx 9. Vista does not actually contain a full installation of Directx 9, just some elements for compatibility purposes. So, install Directx 9.
To install Directx 9c on Windows Vista:
step 1: Download the latest DirectX 9 redistributable file from Microsoft.com here.
step 2: Unzip the file into a folder on your desktop or in your documents.
step 3: Run the DXSETUP file.
step 4: You can delete the folder after the install has finished.
Read More»
Posted in Windows Vista | No Comments »
November 30, 2008 by
Jason As of November 2008, Microsoft is delivering the first taste of DirectX 11 for Windows 7 for download. A release aimed at developers, The November 2008 DirectX Software Development Kit, brings to the table the successor of Direct3D 10.1, namely Direct3D 11. In the SDK package, the Redmond company is offering a technical preview of Direct3D 11, but also the adjacent components and tools. Backwards compatible, content developed for Direct3D 11 hardware will also be compatible with earlier products supporting Direct3D 10 and 10.1 (in Vista SP1). Via the Windows 7 Developer Guide, Microsoft provides an insight into the new features made available by Direct3D 11.
“Geometry and high-order surfaces can now be tessellated to support scalable, dynamic content in patch and subdivision surface representations. To make good use of the parallel processing power available from multiple CPU cores, multithreading increases the number of potential rendering calls per frame by distributing the application, runtime, and driver calls across multiple cores. In addition, resource creation and management has been optimized for multithreaded use, enabling more efficient dynamic texture management for streaming,” Microsoft revealed. Read More»
Posted in Windows 7 | 1 Comment »
November 12, 2008 by
Jason With Windows 7 pre-Beta Build 6801 out of Redmond, it was only natural that DirectX 11 would follow. And this is precisely what happened. Having served Milestone 3 Build of the next iteration of the Windows client, Microsoft is also moving forward with the graphics technology included by default with the operating system. The transition from Vista to Windows 7 is synonymous with the evolution from DirectX 10.1 (in Vista SP1) to DirectX 11. At this point in time, the first taste of the next version of the DirectX suite of multimedia application programming interfaces (APIs), namely DirectX 11, is available for download via the November 2008 DirectX Software Development Kit.
“Included in the November 2008 DirectX SDK is a technical preview of Direct3D 11 and associated components and tools. Direct3D 11 is an update to Direct3D 10.1 enabling new hardware features as well as improving the breadth of configurations supported by Direct3D. As such, Direct3D 11 enables developers to create applications and games that work on Direct3D 10, Direct3D 10.1, and Direct3D 11 hardware when it becomes available. With the addition of WARP and Direct3D 10 Level 9, Direct3D 10.1 and Direct3D 11 have the ability to target fast software rasterization and Direct3D 9 hardware,” Microsoft revealed. Read More»
Posted in Windows 7, Windows Vista | 3 Comments »
November 06, 2008 by
Jason The Games for Windows Branding tool is one of the evolved aspects of the DirectX software development kit launched on November 5, 2008 for a variety of Windows releases, including Windows Vista Service Pack 1 and Windows XP Service Pack 3.
The November 2008 DirectX SDK delivers the Runtime, along with the additional software (updates to tools, utilities, samples, documentation, and runtime debug files) set up to enable developers to create content compliant with DirectX. Both the 32-bit and 64-bit versions of Windows are covered by the DirectX SDK update.
The November 2008 DirectX SDK has taken the Games for Windows Branding tool (offered initially in the August 2008 release of the SDK) to the next level. “This tool helps developers and publishers test their compliance against the Games for Windows technical requirements and test requirements,” revealed Microsoft. Read More»
Posted in Windows Vista, Windows XP | No Comments »
October 14, 2008 by
Jason The pain…
If you’ve invested your hard earned cash on a Creative X-FI sound card and a copy of Vista, you may be feeling a bit underwhelmed right now. Some of your games may be sounding a bit flat and lifeless and you’ll have no doubt felt that sinking feeling when you edit the sound settings in your new game only to find that you can’t enable some of the fancy options. There is a good reason for this and you probably will have been told at great length about it by one of the many passengers on the anti-Microsoft bandwagon.
The Science…
If you’re an experienced PC gamer you’ll no doubt be aware of DirectX and the various functions that make up the DirectX standard, such as DirectDraw, Direct3d and DirectSound and DirectSound3D. You will probably be aware of the hype surrounding Direct3d already, given that it has now reached version 10, but that’s a story for another day. DirectSound is what we are interested in here and it is sadly missing in Vista. XP and DirectX9 featured a “Hardware Abstraction Layer” which was a piece of software that allowed Windows to talk directly to a soundcard such as the X-FI to provide hardware mixing and 3d effects for your games. Without this layer any sound you hear will be mixed using software, rendering much of your shiny new soundcard useless. Read More»
Posted in Windows Vista | 1 Comment »
October 06, 2008 by
Jason
If you’re upgrading a computer running Windows XP, you can save money by opting for an upgrade rather than the full version of Windows Vista.
However, you can’t necessarily perform an ‘in-place’ or ‘over-the-top’ upgrade; sometimes you have to perform a clean installation of Windows Vista, which means backing up and reinstalling all your current programs, folders and files. The table shows where an over-the-top upgrade is possible.
In practice, a clean install means a fresh start; anything short of this can carry over problems from your old, cluttered version of Windows XP. Strictly speaking, when Windows Vista installs itself over Windows XP, it actually does perform a clean install and then imports all the old settings.
This should help prevent problems and can even, in principle, carry through hardware drivers that can’t be installed under Windows Vista itself, thereby preserving the working life of older devices. However, we’d recommend a truly clean install whenever possible. Read More»
Posted in Windows XP | No Comments »
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