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| Subject: | Re: forensics Digest 17 Jun 2005 15:04:36 -0000 Issue 499 |
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| Date: | Thu, 23 Jun 2005 09:06:24 -0500 |
I've always heard the same thing but have never verified it. I heard it a lot with virus writing techniques, but I'm not sure if it's because they intercept the int call and do something special or not, but I used to hear that viruses could survive a warm reboot. The other place I heard it was from some PC diagnostic software (Microscope) which said to load an extended memory driver and then reboot with ctrl+alt+del and run their program and the driver would still be in memory so they could check your extended memory. Unfortunatly I don't have a way to verify this. I don't understand protected mode well enough either but am curious if that makes any difference or causes anything to be reset. Atleast one thing is certain though, certain blocks of memory used currently would still get overwritten if the operating system/BIOS puts data there during the boot process.
tearsong <tearsong6@gmail.com> 6/22/2005 7:25:01 AM >>>One thought, though: doesn't a reboot reset the RAM anyway?
i have heard (and i wouldnt, by any means, stake my life on this!) that *only* a soft boot (reboot) will not completely clear the RAM... however a hard boot (shut down) will most definatly. if anyone can verify/deny this, i'd be grateful. ~tearsong
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