Re: Antivirus/Trojan/Spyware scanners DoS [summary]
From: Bipin Gautam (visitbipin_at_hotmail.com)
Date: 15 Jun 2004 14:58:02 -0000 To: email@example.com('binary' encoding is not supported, stored as-is) In-Reply-To: <firstname.lastname@example.org>
Note: If you download such archives from an
internet loaction, or 'copy/paste' such files from a
distination. Those Vulnerable "Antivirus Softwares"
with their auto-protect engines active, may also
trigger a DoS.
There have been reports,
*Norton AV Corporate Ed. (version 7.60.926)
*MacAfee uvscan scan for Linux (4.3.20)
*F-Prot 4.4.2 for Linux did took considerable amount of time [avg: 90 seconds] while scanning the file, there have been conflicting report... whether or not, F-Prot is vulnerable. But, a compressed archive can be crafted in a way so that F-Prot will take about an hour to scan....
I believe further research should be don't to confirm,
*ClamAV version 0.07, 0.72
*eTrust InoculateIT version 6.0
Please Note: This is just a simple proof of concept, smaller acrhives > 10kb can be created that contain a terabyte of data...