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Posted by on May 28, 2005, 1:26 pm
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Just had a thought: what if you transfer a file you know is virus free
(say thru email) to another machine, can it become infected just in the
transmission process if any server it passed thru was infected?
--
_____________________________________________________
For email response, or CC, please mailto:see.my.sig.4.addr(at)bigfoot.com.
Yeah, it's really a real address :)
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Posted by Roger Wilco on May 28, 2005, 7:33 pm
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> Just had a thought: what if you transfer a file you know is virus free
> (say thru email) to another machine, can it become infected just in
the
> transmission process if any server it passed thru was infected?
Very unlikely. E-mail travels as ASCII text, and the server would have
to be infected with something capable of decoding 'attachments' -
infecting certain types of executable 'attachments' - and re-encoding
them before sending them along. Then you also have the difficulties of
'infecting' the servers which as a rule shouldn't be executing any
foreign content.
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Posted by Adam Piggott on May 28, 2005, 11:01 pm
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Hash: SHA1
see.my.sig.4.addr@nowhere.com.invalid wrote:
> Just had a thought: what if you transfer a file you know is virus free
> (say thru email) to another machine, can it become infected just in the
> transmission process if any server it passed thru was infected?
In theory yes, certainly.
You could send it over with a PGP signature which would help confirm it's
integrity once at the infected machine.
http://www.gnupg.org/
The Gnu Privacy Guard
Cheers,
Adam.
- --
Please replace dot invalid with dot uk to email me.
Apply personally for PGP public key.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (MingW32)
iD8DBQFCmOpT7uRVdtPsXDkRAlxfAJ9dKmDqUAdLJEGMEj7YRYBNeJcmNQCfUgYo
LwUuLEQx69GHTP74PVDeHag=
=TNdk
-----END PGP SIGNATURE-----
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Posted by Mich on May 29, 2005, 12:38 am
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> Just had a thought: what if you transfer a file you know is virus free
> (say thru email) to another machine, can it become infected just in the
> transmission process if any server it passed thru was infected?
> --
> _____________________________________________________
> For email response, or CC, please mailto:see.my.sig.4.addr(at)bigfoot.com.
> Yeah, it's really a real address :)
You must be looking for Alt.Virus.Theory ?
and if a tree falls in the woods and nobody is there to here it does it make
a noise ?
and what is the sound of one hand clapping ?
Grin...
Mich...
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Posted by David H. Lipman on May 29, 2005, 1:09 am
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| Just had a thought: what if you transfer a file you know is virus free
| (say thru email) to another machine, can it become infected just in the
| transmission process if any server it passed thru was infected?
| --
| _____________________________________________________
| For email response, or CC, please mailto:see.my.sig.4.addr(at)bigfoot.com.
| Yeah, it's really a real address :)
I don't see that happening. Email uses store and forward and the attachments
are encoded.
For the "file" in question to be infected, the email server storing the email
message would
have to have a virus specifically running as a process of the email server
within the
application. It would have to know exactly what that application is and be a
integral part
of that application. It would have to extract the attachment, which is encoded,
infect the
file then re-encapsulate the attachment into the body of the message and fit
that message
back into the queue. That queue may have designated just enough space to fit
the original
message, the modified message would undoubtedly be larger and thus not fit back
in the
queue's allocated space.
To my knowledge, there is no virus that can do this.
--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm
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