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发信人: jjksam (bekanntgegeben), 信区: Virus
标 题: Kriz virus
发信站: 荔园晨风BBS站 (Sat Dec 15 17:07:25 2001), 转信
http://whatis.techtarget.com/definition/0,,sid9_gci508980,00.html
Kriz virus
Discovered in the fall of 1999, the Kriz virus (known more formally as W32.
Kriz, W32.Kriz.dr, or PE_KRIZ) infects files on Windows 9x and Windows NT and
2000 systems. It has a potentially devastating payload that triggers on
December 25th of any year once an infected file is run. When this happen the
virus overwrites files on the floppy disk drive, hard drive, RAM drive, and
network drives. It also erases the information stored on the computer's basic
input/output system (BIOS). Although this can only happen on certain types of
BIOS systems, a successful attempt could prevent the computer from booting up -
even if a floppy disk is used. This behavior is similar to that caused by
the CIH virus. In some cases, the Kriz virus will corrupt the file it infects
and cleaning may not be possible.
W32.Kriz is known as a polymorphic virus, meaning it will reside in computer
memory until the next time the system is rebooted. This virus encrypts its
code, leaving only a small random decryptor. This virus will infect files as
they are opened by any application while it is in memory. This will occur
when a user scans files as well. In other words, computers users may be
infected but not know about the virus until the following Dec. 25.
The Kriz virus is also known as Win32/Kriz, Win32.Kriz.3862, and Win32.Kriz.
3740.
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