Environment

• Windows 10 Pro
• Internet Explorer 11
• Kaspersky Internet Security 2016

Issue

Users browsing using Internet Explorer 11 are constantly getting following security warnings:

Security Alert
Revocation information of the security certificate for this site is not available. Do you want to proceed?

Clicking Yes brings an additional security alert:

Security Alert
The identity of this web site or the integrity of this connection cannot be verified.
A The security certificate was issued by a Company that you have not chosen to trust. View the certificate to determine whether you want to trust the certifying authority.

Clicking View Certificate shows following info:

Certificate Information
Issued to: kis.scr.kaspersky-labs.com
Issued by: Kaspersky Anti-Virus Personal Root Certificate
Valid from 08/07/2006 to 03/07/2026

Certificate status shows following error: “This CA Root certificate is not trusted because it is not in the Trusted Root Certification Authorities store.“

Cause

I was interested to find why IE is complaining about Kaspersky certificate when browsing sites that have nothing to do with Kaspersky. After looking into the source of affected webpage I found that Kaspersky is inserting bunch of JavaScript into every single page. Inserted JavaScript has multiple references to https://ie.kis.scr.kaspersky-labs.com, i.e:

Resolution

The issue was resolved by disabling “Inject script into web page traffic to interact with web pages” option in Kaspersky Internet Security settings. This option can found in: Settings (gear icon) > Additional > Network.

Note: After disabling this option following Kaspersky components (or certain features within these components) may no longer work properly: Secure Date Input, Safe Money, Private Browsing, URL Advisor, Anti-Banner, Parental Controls.

 

July 2016