Niu Yunfei Publisher Overview

Did you just run into a download or a file on your computer that has a digital signature from Niu Yunfei? If so, please read on.

You'll probably see Niu Yunfei when clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screencap shows:

You can also view the Niu Yunfei certificate with the following procedure:

1. Open Windows Explorer and locate the Niu Yunfei file
2. Right-click the file and select Properties
3. Click on the Digital Signatures tab
4. Click the View Certificate button

Here is a screenshot of a file signed by Niu Yunfei:

As you can see in the screenshot above, Windows states that "This digital signature is OK". This implies that the file has been published by Niu Yunfei 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 Niu Yunfei, such as the street name, city and country.

WoSign Class 2 Code Signing CA has issued the Niu Yunfei certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.

Niu Yunfei Files

These are the Niu Yunfei files I've gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Niu Yunfei files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Niu Yunfei.

Analysis Details

The analysis is done on certificates with the following serial numbers:

• 6f59179ed43930ce30194efc708a3f14

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