ENS 10.7: Error communicating with quarantine manager

[Nielsb]

Hi,

I have an issue with one system:

"Error communicating with quarantine manager" and no AMcore info in about

Right click scan for threat: "Cannot communicatre with the scan service"

Upgraded from VSE/HIPS to ENS 10.7 November update 

Removal tool ENS selected

Reinstall of ENS 10.7 November update  same issue:

No AMcorce info

[Nielsb]

again the removal tool and ENS/Agent selected + reinstall of ENS november update same issue

[AdithyanT]

Hi @Nielsb,

Thank you for your post. Firstly, It is much appreciated that you already tried the latest version before we investigated further! The issue seems a bit familiar in my experience and this could possibly e due to dll injection going on in the machine.

May I know if you already have a support request created for this? It would be helpful in investigating this with logs.

Also, to confirm if any third party untrusted dlls are getting injected to the UI, we can check the below log file:

Self protection activity located under %^programdata%\McAfee\Endpoint Security\Logs\

You can also request support for the McAfee Sysprep tool that should help you check of injectors as well!

I sincerely hope this helps!

[Nielsb · Accepted solution]

I found 2 dll's via sysprep tool, LG and Filezilla:

01/14/21 11:48:13 [I] [0x4944] Unsigned injector discovered
01/14/21 11:48:13 [I] [0x4944] File [C:\Program Files (x86)\LG Electronics\OnScreen Control\bin\ScreenSplitterHook2.dll] sha2[032F727A92282E5602DDF1B0070B69812E497BF8A14CB103CEF24123168E6090] sha1[F4D19762CECAE4C9362F188670DCC5A9B7B59E8E] md5[DDE251C85CDD407EBE04C9CD53E1B3CC]
01/14/21 11:48:14 [W] [0x4944] Failed to create MA event [17]
01/14/21 11:48:14 [E] [0x4944] Unable to grant trust to module [C:\Program Files (x86)\LG Electronics\OnScreen Control\bin\ScreenSplitterHook2.dll]

01/14/21 12:16:44 [I] [0x4988] File [C:\Program Files\FileZilla FTP Client\fzshellext.dll] sha2[6805B5F8EC15E1B96D21CFB91928F41A86E4C16BAD2940FA657DBCA1831FC5AF] sha1[1B6760F4BF84C64ED9050A5E2AA4B81C0EE4A1F7] md5[C17950C177286B36F492D87C9940B350]
01/14/21 12:16:45 [W] [0x4988] Failed to create MA event [17]
01/14/21 12:16:45 [E] [0x4988] Unable to grant trust to module [C:\Program Files\FileZilla FTP Client\fzshellext.dll]

LG and Filezille application removed, ENS reinstall and same issue

and again the removal tool and bruteforce parameter:

Remove all products using Endpoint Removal Tool with this command line arguments "--accepteula --ALL --bruteforce=SysCore

and the installation was succesfull.

My SR was: 4-21607624361

[AdithyanT]

Hi @Nielsb,

Brilliant! Thank you for keeping us informed on what resolved the issue!

[kblowe]

I am having this same issue. There are no DLL injectors found. I wonder if this command needs to be ran and I retry installing ENS. I'm trying to upgrade from ENS 10.7 April 2020 update to ENS 10.7 Feb 2021 Update and I'm running into all kinds of issues similar to this thread submitted early this year! Help.