2006年4月25日星期二

Linus Torvalds为新概念病毒打“补丁”

旧闻:上周国内很多媒体都对这种实验性概念病毒做了报道,但是Linus Torvalds说由于一个缺陷,该病毒实际上在linux 2.6.16下不能运行,因此他为这个病毒写了一个"补丁"。
Newsforge is reporting that Linus Torvalds took a few minutes to review the cross-platform proof of concept virus covered yesterday and has proven that the virus does indeed not work with latest kernel version 2.6.16 and even released a patch in order to fix this "problem." From the article: "The
reason that the virus is not propagating itself in the latest kernel
versions is due to a bug in how GCC handles specific registers in a
particular system call. [...] So the virus did a number of strange
things to make this show up, but on the other hand the kernel does try
to avoid touching user registers, even if we've never really
_guaranteed_ that. So the 2.6.16 effect is a mis-feature, even if a
_normal_ app would never care. It just happened to bite the infection
logic of your virus thing."
瑞星反病毒反木马一周播报(2006.04.24-04.30)将该病毒命名为:“Bi病毒(Parasite.Bi)”。

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