removing old virus contaminated attachments in Kopano files outside db

[Michael Niehren]

Hi,

i’ve got the following problem. In the users mailbox there are old virus contaminated mail’s, which
the virus-scanner not recognized at the time they arrived.
I’ve found and installed successfully a script (kopano-scan-attachments.py) which goes throught
the users mailbox and scan’s all mails again. If a virus was found, the attachment is exchanged
with an text-attachment… In the script this is done with
email.delete(attachment)
message = ‘The attachment with the name %s has been removed because it was infected with %s’ % (
attachment.name, virus)
email.create_attachment(‘virus-removed.txt’, message)

After that the user sees only this text-attachment instead of the virus attachement. Everything fine.

But if i run the virus-scanner over the filesystem (the Attachment-Dir), it still find’s the virus in
the old attachment-file, which also still has an entry in the singleinstances table.

So my question is, how to remove thes old attachment-files without damaging the integrity, so that the
filesystem is also virus-clean ?

best regards
Michael