Prayag

Level 4
How does comodo firewall protects against signed malware at cruelsister's settings? Also i can disable its processes via task manager. How its self protection?
I am going to use it on my system with cruelsister's settings but these issues are my main concern which do not let me believe in comodo's power.
So,help me out and give the required info.
Thanks.
 

Arequire

Level 23
Content Creator
Verified
Two ways:
  • If the malware's certificate signer isn't on Comodo's trusted vendors list then it will be sandboxed the same as unsigned malware
  • Even if malware is using a certificate from a vendor that's on the trusted vendors list, cloud lookup can still flag the file as malware
According to @cruelsister, malware using stolen certificates gets pounced on pretty quickly by security vendors.
 
Last edited:

AtlBo

Level 26
Content Creator
Verified
Two ways:
  • If the malware's certificate signer isn't on Comodo's trusted vendors list then it will be sandboxed the same as unsigned malware
  • Even if malware is using a certificate from a vendor that's on the trusted vendors list, cloud lookup can still flag the file as malware
Malware using stolen certificates apparently get pounced on pretty quickly by security vendors.
Good question from OP, thanks. Looks like things might change in the future but who knows into what. Comodo is testing "Recognizer" for Valkyrie, which will be able to detect particularly nasty malware, even ransomware, with both signatures and based on behavior.

I think I may turn on Cloud Lookup again. I turned it off because it kept enlarging the TVL list and then I saw that CL was responsible for a couple of documented successful malware attacks. I'm not sure, though. With Comodo testing "Recognizer" as part of Valkyrie, I wonder if the TVL will be as important to me (keeping it short). I like the list short, because I like to know what's happening on the system in the general sense.

For the future, I guess I am somewhat confused about whether leaving Cloud Lookup off would disable "Recognizer" when it comes online. Also, will "Recognizer" replace Cloud Lookup eventually altogether? Ultimately, I kind of wish Comodo would for now back off adding vendors to the TVL via Cloud Lookup. This would be the ideal situation for me imo. I could shorten the TVL and still have the benefit of using CL.
 

Arequire

Level 23
Content Creator
Verified
I am somewhat confused about whether leaving Cloud Lookup off would disable "Recognizer" when it comes online.
It won't. Recognizers apply to Viruscope, not Cloud Lookup. Recognizers contain sets of behaviours that tell Viruscope to raise an alert when an application displays one of those behaviours.
 

shmu26

Level 79
Content Creator
Trusted
Verified
How does comodo firewall protects against signed malware at cruelsister's settings?
Run a good AV together with Comodo firewall, or use Umbra's paranoid settings.

Also i can disable its processes via task manager. How its self protection?
If you disable those processes, it goes into a lockdown state. Everything not previously whitelisted will fall into the sandbox.
 

Maxwell Sien

Level 2
How does comodo firewall protects against signed malware at cruelsister's settings? Also i can disable its processes via task manager. How its self protection?
I am going to use it on my system with cruelsister's settings but these issues are my main concern which do not let me believe in comodo's power.
So,help me out and give the required info.
Thanks.
Yes, comodo allow Windows Files and Trusted Files to terminate Comodo Process. You can see in HIPS Rules:





But any Malware want to terminate Comodo Application, it will failed because of this:





If you set HIPS to Paranoide Mode, Even Task Manager Can't terminate Comodo Process.
 

Terry Ganzi

Level 24
Verified
This question got my head beat bad ( can cfw protect against signed malware ) why segregate that question to 1 product when for all it will be an issue an a serious one at that, entertaining this question for 1 product is madness to the maximum.
 
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