Shulou(Shulou.com)06/03 Report--

What is the streaming video format launched by Microsoft? In view of this problem, this article introduces the corresponding analysis and answers in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

The streaming video format launched by Microsoft is WMV format. WMV is the general name of a series of video codec and related video coding formats developed by Microsoft, and it is part of Microsoft Windows media framework. Because WMV video files often need to enable IE download license and certificate to view, it is easy to be invaded by Trojans.

The streaming video format launched by Microsoft is WMV format.

WMV (Windows Media Video) is a general term for a series of video codec and related video coding formats developed by Microsoft, which is part of the Microsoft Windows media framework.

WMV includes three different codecs: as a competitor to RealVideo, WMV's raw video compression technology was originally designed and developed for streaming applications on Internet.

The other is the compression technology of WMV screen and WMV image to meet the needs of specific content.

After being standardized by SMPTE (Society of Motion Picture and Television Engineers), WMV version 9 was adopted as a distribution format for physical media, such as HD DVD and Blu-ray discs, known as VC-1.

Microsoft has also developed a digital container format called ASF (Advanced Systems Format), which is used to store WMV video coding. Under the same video quality, files in WMV format can be downloaded and played at the same time, so it is very suitable for playing and transmitting on the Internet.

Due to Microsoft's own limitations, the application of WMV is not developing smoothly, and it is also faced with a lot of complaints from users and media. Users are disgusted with the digital rights management (DRM) system added to WMV files in some cases.

In Windows Media Player 11 players, there is no improvement in the ability to recover certificates for WMV files. In addition, Microsoft Zune does not support the standard Windows media DRM system, so that protected WMV files cannot be played.

WMV files are resisted by some users, mainly because WMV video files often need to enable IE download licenses and certificates before they can be viewed.

Trojan virus makers often use this to bundle pop-up viruses with the process of downloading certificates, resulting in inconvenience for users and threats from viruses. Many advertising publishers and even troublemakers also take the opportunity to embed their own advertising windows in order to increase traffic.

Enter DRV pop-up window, WMV pop-up window and so on in the search engine to find that many websites have special pop-up tools to download, which makes users of WMV and WMA format fall into a helpless situation. Because the pop-up windows of RM and RMVB can be simply limited and shielded, while the DRV embedded pop-up windows used by WMV are more difficult to remove.

1. The principle of adding viruses to WMV files.

For WMV format files, the virus is inserted by using the "Microsoft Windows Media player Digital Rights Management loading arbitrary Web Page vulnerability" of its default player Windows Media Player.

When playing a malicious file that has been inserted into a virus, the player will first pop up a prompt window indicating that the file encrypted by DRM needs to verify the certificate through URL, and this URL is the pre-set web virus address. When the user clicks "Yes" to verify, the virus or Trojan horse is implanted successfully.

Like viruses in RM files, we also need a tool to insert viruses in WMV files-WMDRM package encryption, which is a file that can encrypt WMV files with DRM. The software itself is to protect the copyright of media files, but in the hands of attackers, it has become an accomplice of hackers.

2. Methods to defend against viruses in WMV format files

There are a variety of defense methods, two of which are provided below:

(1) replace other players.

(2) upgrade the virus library of antivirus software in time, and upgrade the patches of users' personal media playback software.

This is the answer to the question about what is the streaming video format launched by Microsoft. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel to learn more about it.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.