Core Systems - 5% Detection Rate *

Did you just run into a download or a file on your computer that is digitally signed by Core Systems? Some of the security products refers to the detected files as Bonzuna (fs) and WS.Reputation.1. The detection rate for the Core Systems files collected here is 5%. Please read on for more details.

You will typically notice Core Systems when clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Core Systems with the following procedure:

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

Here is a screenshot of a file digitally signed by Core Systems:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by Core Systems and that no one has tampered with the file.

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

Go Daddy Secure Certificate Authority - G2 has issued the Core Systems certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.

Core Systems Files

These are the Core Systems files I have collected, thanks to the FreeFixer users.

Scanner and Detection Names

Here's the detection names for the Core Systems files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

* How the Detection Percentage is Calculated

The detection percentage is based on the fact that I have collected 339 scan results for the Core Systems files. 16 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.

Analysis Details

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

• 4b1f1b2c0af57f

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