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Can viruses infect the CPU caches?

post #1 of 16
Thread Starter 
Hello there, folks. I'm not experiencing any problems, I'm simply curious whether this is possible. Several google searches didn't turn up much - only managed to find a single post in some blog, in which someone said that it was possible.
If the answer's really positive, some tips/suggested courses of action would be appreciated as well.
Oh, and sorry if this has been asked before - the search results don't load for
some reason.
Cheers~
     
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post #2 of 16
I very much doubt it. Interesting question, though.
    
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post #3 of 16
Cache is just like RAM. It's non-volatile memory. It's impossible for anything to stay on it.
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post #4 of 16
dont think so. However, Intel incorporated some sort of virus protection on their CPU's, i know it is on the "Core" cpus..called data halt or something. prevents buffer overflows. however thats not the answer youre looking for.


very interesting question though
 
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post #5 of 16
No it is not possible, a virus is software based not hardware based so it cannot exist in memory that is not able to store anything in the first place.
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post #6 of 16
Quote:
Originally Posted by pioneerisloud View Post
Cache is just like RAM. It's non-volatile memory. It's impossible for anything to stay on it.
I believe you are correct. It could *probably* get on the cache, but it would not stay there.
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post #7 of 16
Quote:
Originally Posted by pioneerisloud View Post
Cache is just like RAM. It's non-volatile memory. It's impossible for anything to stay on it.
This ^^^
post #8 of 16
Quote:
Originally Posted by pioneerisloud View Post
Cache is just like RAM. It's non-volatile memory. It's impossible for anything to stay on it.
Correct, although it should read volatile memory. (not non)
post #9 of 16
Thread Starter 
Huuuh, I see. Well, the post I mentioned earlier goes like this:
Quote:
In case the virus is written in Assembly I think it is possible to load itself to the CPU cache memory and work as a endless function. But I dont think that the virus can cause demages just the CPU gonna be slower.
Link: http://www.computing.net/answers/har...ors/44924.html

4 year old posts, yay.
     
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post #10 of 16
What if your rig runs 24/7 and said virus gets into the cache and works as an endless function...would it eventually damage the cpu?
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