Qualys, Inc - 0% Detection Rate *

Did you just download a file that has a digital signature from Qualys, Inc and wonder if the file is safe? If so, please read on.

You'll probably see Qualys, Inc when clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where Qualys, Inc appears as the verified publisher in the UAC dialog

You can also view the Qualys, Inc certificate with the following procedure:

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

Here is a screenshot of a file that has been signed by Qualys, Inc:

Screenshot of the Qualys, Inc certificate

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 Qualys, Inc and that the file has not been tampered with.

If you click the View Certificate button shown in the screencap 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 Qualys, Inc, such as the street name, city and country.

VeriSign Class 3 Code Signing 2010 CA and Symantec Class 3 SHA256 Code Signing CA has issued the Qualys, Inc certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.

Qualys, Inc Files

These are the Qualys, Inc files I've gathered, thanks to the FreeFixer users.

Detection RatioFile Name
0/49qbc_bho.dll
0/51npqbc.dll
0/51qbc_sa.dll
0/57qbc_bho.dll
0/62qbc_bho.dll

* How the Detection Percentage is Calculated

The detection percentage is based on that I've gathered 270 scan results for the Qualys, Inc files. 0 of these scan reports 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.

Analysis Details

The analysis has been done on certificates with the following serial numbers:

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