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Solarlynx

Comodo Firewall Conflict - Chrome doesn't start

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Hi! 

Google Chrome starts OK with MBAE free. But with this latest experimental build it doesn't start. Sometimes, but not every time, MBAE says it blocked an exploit attempt. When the Chrome shield is deactivated, the browser starts OK.

 

 

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Hi Solarlynx, welcome to the forum.

 

Can you please post your files from the MBAE user data directory (C:\ProgramData\Malwarebytes Anti-Exploit) as well as a DDS or FRST log?

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Can you try disabling the TotalSecurity360 webshield module as well as the 360 Chrome 360InternetProtection extension to see if that makes a difference?

 

Also it is worth trying MBAE 1.04 to see if the problem persists. The MBAE experimental builds are signed by ZVL instead of Malwarebytes, so this could be the source of the conflict with TotalSecurity360 as the ZVL digital signature might not be in their whitelist.

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It doesn't work. Chrome doesn't launch with "TotalSecurity360 webshield module" and the "360 Chrome 360InternetProtection extension" disabled, with both 1.04 and 1.05.

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Thanks for testing. What if you completely uninstall TotalSecurity360 and Comodo Firewall? After uninstalling them, reboot and then reinstall MBAE to see if it makes a difference.

 

Also you mentioned the same problem happened with 1.04, but on your first post you mentioned that it was ok with MBAE Free (aka 1.04). Did it stop working recently and was working before?

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Chrome started when I just uninstalled Comodo FW, without rebooting and reinstalling MBAE.

 

As for 1.04 free I'm sorry I confused it with experimental build 1.05.3.1011. What I wrote with respect to 1.04 I meant 1011 build. I'm sorry.

 

So is it possible to make MBAE experimental get along with Comodo FW so that Chrome starts?

 

 

Thank you. 

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Based on this feedback then I think it's safe to say that what Comodo is chocking on is the digital signature.

 

Once MBAE 1.05 becomes final early next week this will be solved as it will be digitally signed by Malwarebytes.

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When I tried to include signature from running mbae.exe, CF said it already has ZeroVulnerabilityLabs in the list.

Then I added all files from folder "C:\Program Files (x86)\Malwarebytes Anti-Exploit" to trusted. Anyway shielded Chrome doesn't start.

 

Maybe the problem is not in the digital signature?

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If I remember correctly we had this problem before with Comodo. In addition to the user-managed certificates, they also have some internal overflow protection for browsers to which the user-based certificates do not apply. They had to exclude us manually from that feature.

 

Try MBAE 1.04. If the problem goes away then I am very certain the problem is this one.

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Yes, with the 1.04 the problem goes away.

 

So next 1.05 free will be signed correctly and therefore is expected without this problem, isn't it?

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By the way I have  Comodo Internet Security on other my PC. CIS gets along with MBAE experimental 1.05.3.1012 without any problems. CIS and CF are of the same latest version on my PCs.

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Thanks for confirming Solarlynx!

 

Our QA has also tested this and they also confirm the issue is fixed.

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