Full Disclosure mailing list archives
RE: Full-disclosure Digest, Vol 8, Issue 48
From: "Stejerean, Cosmin" <cosmin () cti depaul edu>
Date: Thu, 27 Oct 2005 14:00:04 -0500
If your altered virus sample
?> still executes correctly, you have simply created a new virus ?> variant.
Not exactly, please look at this virustotal.com log http://www.securityelf.org/updmagic.html The altered (120 bytes prepended) TXT_* variant is STILL detected by your product (CA), but when I change the first byte from "Z" to "M" - your product fails (MZ_* variant).
The virus scanner determined the type of the file by the header and it failed. That's bad news. I am wondering however, when I execute that file, how does the OS process the file? I guess my question is, if I have a modified version of a virus, with whatever header, if I try to execute that file, will the virus code get executed? Cosmin Stejerean
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Current thread:
- RE: Full-disclosure Digest, Vol 8, Issue 48 Stejerean, Cosmin (Oct 27)
- <Possible follow-ups>
- RE: RE: Full-disclosure Digest, Vol 8, Issue 48 auto445789 (Oct 28)
- RE: RE: Full-disclosure Digest, Vol 8, Issue 48 Martijn Lievaart (Oct 31)
- RE: RE: Full-disclosure Digest, Vol 8, Issue 48 Nick FitzGerald (Oct 31)
- RE: RE: Full-disclosure Digest, Vol 8, Issue 48 Martijn Lievaart (Oct 31)