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From: nick at virus-l.demon.co.uk (Nick FitzGerald) Subject: Unpacking Sasser "Lee" <cheekypeople@...33.com> wrote: > As a side note I use Vmware workstation and GSX server edition to create > enviroments that can be trashed and re-used at will, just wanted to add > another secure way of testing malware etc... "Secure" so long as you are careful with the the virtual-to-physical network configuration. Far too many are not... Also, as with running under a debugger, the VM environment can be sensed by the code being tested and choose to act entirely differently from how it would otherwise. There is malware that does this and there will be more in future, so as always "Don't try this at home kids"... In short, whilst careful and thoughtful analysis can be greatly aided by tools such as VMWare and SoftICE, simply running or tracing a suspect .EXE under such an environment is far from sufficient if "a modestly adequate analysis" is the desired result. -- Nick FitzGerald Computer Virus Consulting Ltd. Ph/FAX: +64 3 3529854
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