False positive warning on PGP/MIME-mails

system · June 1, 2006, 5:54pm

Hi,

whenever I get an encrypted mail in PGP/MIME-format (retrieved via IMAP), avast! warns me of a potential thread in the attachment.

igor0 · June 1, 2006, 5:55pm

What’s the exact message?

system · June 1, 2006, 6:02pm

In German:
“Stark verdächtige Erweiterung im Attachment”

igor0 · June 1, 2006, 6:10pm

Sounds like e-mail heuristics. Try to customize the settings in the respective provider (Internet Mail or Outlook).

system · June 1, 2006, 6:13pm

I did, but was not able to stop it.

igor0 · June 1, 2006, 9:17pm

What e-mail client do you use, what provider did you configure - and how?

system · June 1, 2006, 9:25pm

Client: Thunderbird 1.5.0.3 using the enigmail extension

Provider:
Internet Mail, medium security. I also tried the custom heuristics with everything switched off. It still happens. Probably, because at least one message part is of type “application/octet-stream”.

system · December 29, 2009, 9:15am

I think it isn’t a solution. Please add recognition of PGP header (plaintext) to heuristic scanner. This is a very-very old bug in avast!.

False positive warning on PGP/MIME-mails

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