Natan Risman - 5% Detection Rate *

Did you just find a download or a file on your computer that has been digitally signed by Natan Risman? Some of the security products refers to the detected files as Win32/InstalleRex.A.Gen and InstallRex. The detection rate for the Natan Risman files collected here is 5%. Please read on for more details.

You will typically notice Natan Risman when clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the Natan Risman certificate with the following procedure:

1. Open Windows Explorer and locate the Natan Risman 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 screengrab of a file signed by Natan Risman:

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

If you click the View Certificate button shown in the screenshot above, you can see 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 examine the address for Natan Risman, such as the street name, city and country.

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

Natan Risman Files

The following are the Natan Risman files I've collected, thanks to the FreeFixer users.

Scanner and Detection Names

Here's the detection names for the Natan Risman files. I have 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 that I have gathered 91 scan reports for the Natan Risman files. 5 of these scan reports came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.

Analysis Details

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

• 34640f50a673f31e25ef247830cca289

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