Comodo Internet Security 5.3.174622.1216 Released! - Updated to 5.3.176757.1236

Hello everyone,

We would like to announce that Comodo Internet Security/Antivirus/Firewall 5.3.174622.1216 has just been released!

What’s new in 5.3.174622.1216?

Below are some of the enhancements. The fixes included in the release notes are not the full list of the fixes.

NEW! Full IPv6 Support in firewall
NEW! Rootkit Scanner - Hidden registry keys, files and folders are detected
NEW! 5 skins from Comodo, including a native windows skin
IMPROVED! AV database updating - Virus DB size reduced significantly
IMPROVED! AV engine - fixed some bugs and added new detection mechanisms
IMPROVED! Cloud scanning is enabled by default in manual scanner now
IMPROVED! Installer - It now enables/disables windows firewall/defender during the installation/uninstallation
FIXED! CIS causes massive amount of entries in windows security audit logs
FIXED! AV does not validate the revocation status of the certificates in signed binaries
FIXED! BSOD in cmderd.sys


Whats New in 5.3.175888.1227 ?

FIXED! CIS causes unnecessary DNS queries and update checks
FIXED! AV does not properly validate the revocation status of the SOME certificates
FIXED! AV scanning freezes if rootkit scanning is enabled
FIXED! FW shows too many listening connections
FIXED! AV scanning crashes on some compressed files

What’s New in 5.3.176757.1236?

FIXED! CMC message is persistently shown although users close the dialog

Frequently Asked Questions(FAQ)

Q - Should I uninstall CIS 5.0 and reinstall CIS 5.3?
A - You dont have to. You will get the update anyway.

Q - Does CIS 5.3 include DACS?
A - No. It is still being developed.

Q - I had reported an issue before. Is it addressed in this release?
A - We are grateful to you for helping us by reporting the issues you observed. Please be certain that all of the issues reported in the forum are in our formal release process. It might have been addressed in this release. But if it didnt, it will definetly be in the future releases.

Q - Are the versions downloaded from the web site the same as these?
A - Yes they are.

Download Locations:

CIS Premium:

64 Bit Operating Systems:
Size: 36M ( 37477704 )

32 Bit Operating Systems:
Size: 34M ( 35188552 )


At last! Thank you! :-TU

Thanks Egemen and Melih and The Comodo Team For This Excellent Release :smiley:

I’m sorry, folks, I just CAN NOT and WILL not wait next week, installing it NOW!

:smiley: :-TU :-TU :-TU :-TU

trying skin 8)

Thanks for the gift. Happy New Year!

Thank you very much and happy new year

Welldone guys! I know how hard you worked to make this happen as a New Year Present to all our Comodo users! :slight_smile:

You guys rock!


Thank you Comodo, so much progress in this year.

Just a quick question for now. What’s that adaptive mode in D+?

[attachment deleted by admin]

Thanks, and Congratulations to the developers.

Thanks :-TU

sigs size 78.8 mb, running stable, no crashes, seeing new stuff in options, also rootkit scanner in av, adaptive mode and command analysis in d+, also submit unknown files for analysis in antivirus! :-TU

Thanks guys :-TU :-TU :-TU

At this point, could some Staff member update the “default Policies thread” here?

In a heavily loaded system, low memory conditions might cause some CIS functions to fail. This almost NEVER happens. In suh a case, CIS tries to find some memory by using adaptive techniques. However, the cost is reduced performance and response in even lightly loaded systems.

Previous CIS releases always had this enabled. Now it is optional and disabled by default. Only there for proactive security configuration, for infested systems.

You will probably not observe any difference.

Full system scan, over 1500000 files in less than 4 minutes, WTF!!! :o :o :o ???
1686000 files time taken 00:13:00 !!!
1710000 files time taken 00:17:00 :-TU :-TU :-TU

Thanks a lot for this present!!! :-TU :comodo110:

Thanks egemen for explanation. :-TU

Just GREAT!!! Thanks guys!

Thanks to Comodo and everyone on the team for this release… :comodorocks: