Did you just download a file that has been digitally signed by Beijing Ruidongtiandi Info.Tech.Co.,Ltd. and wonder if the file is safe? If so, please read on.
You will probably see Beijing Ruidongtiandi Info.Tech.Co.,Ltd. when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the Beijing Ruidongtiandi Info.Tech.Co.,Ltd. certificate with the following steps:
Here is a screenshot of a file digitally signed by Beijing Ruidongtiandi Info.Tech.Co.,Ltd.:

As you can see in the screencap above, the Windows OS states that "This digital signature is OK". This means that the file has been published by Beijing Ruidongtiandi Info.Tech.Co.,Ltd. and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can examine all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, and so on. You can also view the address for Beijing Ruidongtiandi Info.Tech.Co.,Ltd., such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Beijing Ruidongtiandi Info.Tech.Co.,Ltd. certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Beijing Ruidongtiandi Info.Tech.Co.,Ltd. files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/44 | gsramdsk.sys |
| 0/54 | proglock.sys |
The detection percentage is based on that I have gathered 98 scan results for the Beijing Ruidongtiandi Info.Tech.Co.,Ltd. files. 0 of these scan reports came up with some sort of detection. You can review the full details of the scan reports by examining the files listed above.
The analysis is based on certificates with the following serial numbers: