Krzysztof Kowalczyk - 0% Detection Rate *

Did you just download a file that has been digitally signed by Krzysztof Kowalczyk and wonder if the file is safe? If that's the case, please read on.

You'll typically see Krzysztof Kowalczyk when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where Krzysztof Kowalczyk appears as the verified publisher in the UAC dialog

You can view the digital signature details for Krzysztof Kowalczyk with the following procedure:

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

Here's a screenshot of a file digitally signed by Krzysztof Kowalczyk:

Screenshot of the Krzysztof Kowalczyk certificate

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 Krzysztof Kowalczyk 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, and so on. You can also view the address for Krzysztof Kowalczyk, such as the street name, city and country.

COMODO Code Signing CA 2 and COMODO RSA Code Signing CA has issued the Krzysztof Kowalczyk certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.

Krzysztof Kowalczyk Files

The following are the Krzysztof Kowalczyk files I have collected, thanks to the FreeFixer users.

Detection RatioFile Name
0/57SumatraPDF.exe
0/60SumatraPDF.exe
0/64uninstall.exe
0/69SumatraPDF.exe
0/70sum~inst.exe

* How the Detection Percentage is Calculated

The detection percentage is based on that I have gathered 320 scan reports for the Krzysztof Kowalczyk 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.

Analysis Details

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

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