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RD77
Beginner

Signed pdf attachment

Hello,

 

We receive more and more pdf files as attachement that are "signed" with a certificate (Adobe certificate).

The ESA found this file as ENCRYPTED with the AV engine. But we found that they are not really encrypted (just signed) and can be opened with any pdf viewer after releasing. 

How do you manage this type of file which are harmless in the end. 

Can we import a certificate for these file to make the ESA trust the file?

Any idea?

REgards

 

 

 

1 REPLY 1
Libin Varghese
Cisco Employee

The AV engine on the ESA currently does not have an option to import certificates to it.

If there are trusted senders who send such attachments you could add them to a separate incoming mail policy where AV encrypted action is set differently to allow delivery of those emails.

 

Regards,

Libin

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