Did you just find a download or a file on your computer that has been digitally signed by AVM Computersysteme Vertriebs GmbH? If so, please read on.
You will probably see AVM Computersysteme Vertriebs GmbH when double-clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screencap shows:

You can view the digital signature details for AVM Computersysteme Vertriebs GmbH with the following steps:
Here's a screenshot of a file that has been signed by AVM Computersysteme Vertriebs GmbH:

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 AVM Computersysteme Vertriebs GmbH and that the file has not been tampered with.
If you click the View Certificate button shown in the screengrab above, you can view 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 AVM Computersysteme Vertriebs GmbH, such as the street name, city and country.
VeriSign Class 3 Code Signing 2004 CA and VeriSign Class 3 Code Signing 2009-2 CA has issued the AVM Computersysteme Vertriebs GmbH certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the AVM Computersysteme Vertriebs GmbH files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/47 | sarah.dll |
| 0/50 | sarah.dll |
| 0/48 | sarah.dll |
| 0/44 | sarah.dll |
| 0/55 | De_serv.exe |
| 0/42 | block.dll |
| 0/47 | block.dll |
| 0/41 | avmport.sys |
| 0/53 | IGDCTRL.EXE |
| 0/72 | avmike.exe |
The detection percentage is based on the fact that I've collected 1201 scan results for the AVM Computersysteme Vertriebs GmbH files. 0 of these scan results came up with some sort of detection. If you like, you can review the full details of the scan results by examining the files listed above.
The analysis is done on certificates with the following serial numbers: