Did you just stumble upon a download or a file on your computer that has been digitally signed by Dragon Big Lab? Some of the security products refers to the detected files as Crossrider (fs) and Adware.Win32.CrossAd.BM. The detection rate for the Dragon Big Lab files collected here is 13%. Please read on for more details.
You will typically see Dragon Big Lab when running the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screencap shows:

You can also view the Dragon Big Lab certificate with the following procedure:
Here is a screenshot of a file digitally signed by Dragon Big Lab:

As you can see in the screenshot above, the Windows OS reports that "This digital signature is OK". This implies that the file has been published by Dragon Big Lab 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, etc. You can also see the address for Dragon Big Lab, such as the street name, city and country.
COMODO Code Signing CA 2 has issued the Dragon Big Lab certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Dragon Big Lab files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 7/56 | Splash.exe |
Here is the detection names for the Dragon Big Lab files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVware | Crossrider (fs) |
| Baidu-International | Adware.Win32.CrossAd.BM |
| ESET-NOD32 | a variant of Win32/Toolbar.CrossRider.BM potentially unwanted |
| Malwarebytes | PUP.Optional.DrPC.A |
| Symantec | WS.Reputation.1 |
| TrendMicro-HouseCall | Suspicious_GEN.F47V0115 |
| VIPRE | Crossrider (fs) |
The detection percentage is based on that I've collected 56 scan results for the Dragon Big Lab files. 7 of these scan reports came up with some sort of detection. You can view the full details of the scan results by examining the files listed above.
The analysis is based on certificates with the following serial numbers: