Did you just stumble upon a file that has a digital signature from Prevx? If so, please read on.
You'll probably see Prevx when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view the additional details from the Prevx digital signature with the following procedure:
Here is a screenshot of a file that has been signed by Prevx:
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 Prevx and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot 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, etc. You can also see the address for Prevx, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA, VeriSign Class 3 Code Signing 2004 CA and VeriSign Class 3 Code Signing 2009-2 CA has issued the Prevx certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Prevx files I have gathered, thanks to the FreeFixer users.
The FreeFixer tool treats files from Prevx as trusted, which means that the Prevx files will appear with a green background and that there is no removal checkbox for the file. However, as you can see in the scan results below, a few of the anti-virus scanners detects the Prevx file(s). My guess is that those detections are incorrect and that the files are safe. It's unlikely that Prevx would ship a malware file.
Detection Ratio | File Name |
---|---|
1/48 | f_0002fd |
0/43 | pxscan.sys |
0/43 | PxSecure.dll |
0/37 | PxSecure.dll |
0/47 | pxrts.sys |
0/41 | pxscan.sys |
0/40 | pxscan.sys |
0/43 | PxSecure.dll |
0/41 | pxscan.sys |
0/46 | pxscan.sys |
Here's the detection names for the Prevx files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
As mentioned above, I think these detections are false positives since it is very unlikely that Prevx would ship a malware file.
Scanner | Detection Names |
---|---|
Jiangmin | Adware/Zwangi.kb |
The detection percentage is based on the fact that I have gathered 595 scan results for the Prevx files. 1 of these scan results came up with some sort of detection. If you like, you can review the full details of the scan reports by examining the files listed above.
The analysis is done on certificates with the following serial numbers: