File always blocked although the ATD gives a "Might be Trusted" Reputation

[mariobockenauer]

Hello,

I have installed a new environment with

ePO 5.3.2

DXL 3.0

TIE 2.0

VSE 8.8 Patch 8

ATD 3.6.2

I set "Block unknown files". After modify the putty.exe (change one letter for a new hash) the file is unknown and is blocked on the client

The ATD analyses the file and set the ATD reputation to "Might be Trusted" (view in TIE Reputation).

I run the modified putty.exe again and the file is always blocked.

Why?  Is this a wrong behavior?

The Product description is here ( ) "run the file again" :

• After analysis, McAfee Advanced Threat Defense will publish the file’s reputation to the DXL. At that point, the endpoint (and all other products on the DXL) will be notified if it is malicious or safe.

• McAfee recommends configuring the TIE client to block the execution of files if they are sent to ATD. This will result in TIE blocking the execution of the file on the endpoint even if ATD later concludes that they are safe. In that case, the end user would simply have to run the file again to execute it.

Thx

Mario

[mariobockenauer]

Hi again,

I upgraded the ATD to version 3.8. I hope the new DXL client version 3.0 in ATD 3.8 Image resolve my issue, but its the same behavior. Known Files are blocked by TIE

[Former Member]

This is a question for the TIE team.  If ATD is scanning the file and publishing the reputation to TIE, then it's job is done and it is up to TIE to block or allow a file based on the reputations stored in it's database.

The TIE community is located at

[mariobockenauer]

Hello Ryan,

can you move this thread?

Thx

Mario