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| Thread ID: 46380 | 2004-06-21 23:56:00 | ServicePack 2 for XP | heaton (3697) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 246711 | 2004-06-22 09:13:00 | > > ...it will be giving them pointers as to how to > crack un-patched XP machines which, is most them > until the final SP comes out (assuming everyone is > good and patches immediately). > > I'm betting that within 2 weeks of the final of SP2 > being released there will be a "critical" exploit > which will require everyone to update their machines > again. LOL. You can almost feel it in the air, like a storm on the way. Just make sure you've got ya brolly (not for Welly folk tho), hat, Swani and Red Bands. A good pair of waterproof trou wouldn't go amiss either unless you don't embarass easy. Cheers Murray ;P |
Murray P (44) | ||
| 246712 | 2004-06-22 09:14:00 | Found something regarding NX "Execution protection marks all memory locations in a process as non-executable unless the location explicitly contains executable code. Execution protection mitigates a class of attacks that attempt to insert and execute code from non-executable memory locations by intercepting these attempts and raising an exception. Execution protection can eliminate one class of security exploits. Specifically, execution protection can prevent the exploit in which a virus or other attack has injected a process with additional code and then attempts to execute the injected code. On a system with execution protection, execution of the injected code would result in an exception Intel is going to support NX on 32-bit system starting from soon and AMD has implemted this feature. If app doesn't work with DEP, you can disable it easily or globally disable it in boot.ini. " tony |
robert_m_r_w (3943) | ||
| 246713 | 2004-06-22 12:20:00 | Hmm, so you can definitely disable hardware NX. That is interesting and changes my perspective a little. If it can be done purely in software as the above posts suggest why the need for hardware based or more specifically CPU when another chip on the board would suffice? Thinking here, like hardware as opposed to software firewalls. Cheers Murray P |
Murray P (44) | ||
| 246714 | 2004-06-22 12:41:00 | makeing it hardware based makes it harder to hack. when the CPU comes across a NX-bit it trigers an exception and the OS deals with the problem. the only way to stop this is to set a bit in the GDT of the CPU and tell it not to watch for NX-bits, the GDT can only be changed be a program running in ring 0 (the kernal). no program other than the OS kernal can turn on or off the NX-bit system. if it was all done in software then any program can push and pull at the OS till it stops doing NX protection. NOTE the above is only what I can figure out from what i have read on other web sites, dont expect me to be a textbook source of info :-) |
robsonde (120) | ||
| 246715 | 2004-06-22 12:53:00 | Ta. I've only fluffed over the tech stuff but understood it on a very basic level. Being more interested in the brewing dustup and the apparent indecision of the various vendors, or maybe it's political positioning and power plays. I didn't notice anyone mention you could turn it off and on though. All very intriguing, to me anyway. Cheers Murray P |
Murray P (44) | ||
| 246716 | 2004-06-22 13:22:00 | the NX-bit is intels cruft to make a harvard architecture system from a Von Neumann architecture system. for anyone who want to have a read of the full geek stuff..... www.csupomona.edu www.fact-index.com |
robsonde (120) | ||
| 246717 | 2004-06-23 02:45:00 | > A bit more confused with all this technobabble . What > is SP2 RC2 ?" Its at the "near" final stages at the > moment (RC2), and are for public to download . Try it > and see . " And it is 230MB+ an all night job to > download . And the download stalled halfway through > due to some other techno stuff which would send me > through the ceiling . When this programme is finally > released to the public and for non techno idots like > me, can one get it on a CD or do I hire an expert to > put it into my machine . I am fast beginning to think > that going on the internet is not worth all the > trouble and I will reserve my computer for shooting > down ME109's as well as doing my books . Hi Heaton, The 230MB+ is for the network upgrade, I grabbed SP2 last night, 106 MB and no problem to the whole process . Just a matter of "joining the dots" really . The single user process is pretty easy, just slow and boring . SP2 = Sevice Pack 2, (i . e . , We are trying to fix the new boats, here's some leak stoppers for yours) RC2 = Release Candidate 2 (We are trying to get it right, this is what we have done about the paper leak stoppers we sent last time) Beta = Trial version, try it at your own risk . This is what they forgot to include on Win XP, Win ME, Win 200, . . . . . . . I think "Microsoft" on a product means . " It's your boat, your ocean, OUR money now, Hope you can swim . We will keep sending leak-stoppers" Cheers, R2 . |
R2x1 (4628) | ||
| 246718 | 2004-06-25 01:44:00 | Thanks C_S, that is indeed my take on the issue . Until recently, Microsoft was adamant that it had only bought in GeCAD's expertise to basically create an API that AV vendors could write to . We've asked them several times, "does this mean you'll bring out MSAV Mk II?" but it was denied each time . Now the story's different, and I think Microsoft's making a big mistake . Will do a longer piece on SP2 for the August edition of PC World , so keep an eye out for that . :-) -- Juha |
juha (761) | ||
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