Full Disclosure mailing list archives
RE: DOS all platforms
From: "Rob, grandpa of Ryan, Trevor, Devon & Hannah" <rslade () sprint ca>
Date: Fri, 23 Jan 2004 22:30:30 -0800
Ah, dear, dear, dear. The old legends never really die ...
Exibar wrote:Causing Physical damage to equipment???? Good luck.... although waybackwhen there was a program that would set the refresh rate on your monitor very very high and it could cause the monitor to die.... Doesn't happen anymore though :-)
Good luck about covers it. The monitor business was not the refresh rate, but the scanning rate. On one particular graphics card (one of the Hercules line, if my failing memory serves) /monitor combo you could set the rate to zero in both directions, thus allowing you to burn out the phosphors in one particular spot. It would take some considerable time to seriously damage a large chuck of screen real estate. Never was included in any malware that I encountered ... From: "Brent Colflesh" <Brent.Colflesh () ulticom com> Date sent: Fri, 23 Jan 2004 18:00:09 -0500
I also recall rumours of a virus in the ~1995 time frame which would cause overexcursion of the r/w heads in the hard drive, causing the heads to crash into the side of the drive.
Again, never used in any malware. This was widely used as an example of an action that *could* cause hardware damage. In fact, it was hardly universal. Some old 5.25" drives would lose alignment if the heads were repeatedly banged against the stop. On the other hand, on some drives it was the standard way to get the drive to allow you to access and format tracks outside the normal range, so that you could cram more data onto a disk ... ====================== rslade () vcn bc ca slade () victoria tc ca rslade () sun soci niu edu "If you do buy a computer, don't turn it on." - Richards' 2nd Law "Robert Slade's Guide to Computer Viruses" 0-387-94663-2 "Viruses Revealed" 0-07-213090-3 "Software Forensics" 0-07-142804-6 ============= for back issues: [Base URL] site http://victoria.tc.ca/techrev/ alternate site http://sun.soci.niu.edu/~rslade/ CISSP refs: [Base URL]mnbksccd.htm PC Security: [Base URL]mnvrrvsc.htm Security Dict.: [Base URL]secgloss.htm Security Educ.: [Base URL]comseced.htm Book reviews: [Base URL]mnbk.htm [Base URL]review.htm Partial/recent: http://groups.yahoo.com/group/techbooks/ Security Educ.: http://groups.yahoo.com/group/comseced/ Review mailing list: send mail to techbooks-subscribe () egroups com _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- DOS all platforms Chris Brown (Jan 21)
- Re: DOS all platforms hicks (Jan 21)
- Re: DOS all platforms Exibar (Jan 22)
- Re: DOS all platforms Mark Renouf (Jan 23)
- RE: DOS all platforms Brent Colflesh (Jan 23)
- RE: DOS all platforms Rob, grandpa of Ryan, Trevor, Devon & Hannah (Jan 24)
- RE: DOS all platforms Shawn Nunley (Jan 24)
- Re: DOS all platforms Exibar (Jan 22)
- Re: DOS all platforms Matt Burnett (Jan 23)
- Re: DOS all platforms hicks (Jan 21)
- <Possible follow-ups>
- Re: DOS all platforms Chris Brown (Jan 21)
- January 04 MDAC patch Geo. (Jan 23)
- RE: DOS all platforms James Lay (Jan 21)
- RE: DOS all platforms James . Cupps (Jan 23)
- Re: DOS all platforms Valdis . Kletnieks (Jan 23)
- Re: DOS all platforms Matt Burnett (Jan 23)
- Re: DOS all platforms Frank Knobbe (Jan 23)
- Re: DOS all platforms Valdis . Kletnieks (Jan 23)