Ngay 12/3/2007, mot nha nghien
cuu cua McAfee cho biet, tinh nang trong Windows duoc thiet ke de don gian hoa
viec tinh toan cho nguoi tan tat co the bi lam dung trong Vista.
Theo nha nghien cuu Vinoo Thomas cua McAfee, nhung ke tan cong co the su dung
tinh nang nay (StickyKeys) de lua nguoi dung “coi xich” cho phan mem trai phep
(unauthorized software) len may tinh chay Vista.
 StickyKeys
se duoc kich hoat khi nguoi dung Windows nhan phim bo tro (nhu Shift hay Alt) 5
lan lien. Dieu nay lam phim bo tro “dinh” hon, do do co the thuc hien nhung lenh
nhu Shift-F1 ma khong phai bam dong thoi hai phim.
De tan cong, dau tien ke tan cong phai truy nhap duoc vao may roi thay the file
sethc.exe (dung de kich hoat StickyKeys) bang mot so file thuc thi khac nhu tien
ich lenh Windows.
Theo ong Thomas, lo hong dang backdoor nay da thay trong Windows 2000 va Windows
XP. De tranh gap phai van de nay, nen go cai dat (uninstall) tinh nang
Accessibility Tools (von duoc cai dat theo mac dinh).
Theo PCWorld/ IDG News Service, VNN
Article source http://w4rum.com/536.t
| 