Bai nay mo ta mot so thanh phan trong Microsoft
Outlook Express 6 duoc xay dung nham bao ve ban chong virus lay lan qua e-mail.
Thanh phan chong virus (Virus Protection) trong Outlook Express 6 nam tren nhan
Security cua hop thoai Tools
> Options.
Su dung Internet Explorer Security Zone vo hieu hoa noi dung kich hoat
trong e-mail Hyper Markup Language (HTLM)
Cac vung bao mat (security zone) cho phep ban lua chon phan noi dung kich hoat
nao (nhu cac dieu khien ActiveX Control va script) co the duoc chay ben trong
e-mail HTML o Outlook Express. Mac dinh Outlook Express 6 su dung Restricted
Zone (vung gioi han) thay vi Internet Zone (vung mo rong). Microsoft Outlook
Express 5.0 va Microsoft Outlook Express 5.5 su dung Internet Zone, cho phep hau
het noi dung kich hoat duoc hoat dong. Muon tuy chinh cac thiet lap ve vung bao
mat Internet Explorer cho Outlook Express, thuc hien nhu sau:
Canh bao: Cac thiet lap vung bao mat thay doi
co the gay nguy hiem cho may tinh cua ban voi ma nguon nhieu kha nang bi xam hai.
Hay than trong khi thay doi cac thiet lap nay.
Khoi dong Outlook Express, tren menu Tools,
chon Options.
Kich vao nhan Security, chon
Restricted Sites Zone hoac Internet Zone
(kem an toan hon nhung nhieu tinh nang hon) trong phan
Virus Protection duoi muc Select the
Internet Explorer security zone to use.
Kich vao OK de dong hop thoai
Options va thoat Outlook Express.
Khoi dong Internet Explorer, chon Internet Options
tren menu Tools, kich chon
Security.
Chon Custom Level cho vung bao mat ban da
chon trong Outlook Express. Cac thiet lap bao mat duoc chon cho
Outlook Express cung co tac dung voi Internet Explorer.
Doc toan bo thu trong kieu dinh dang van ban don gian (chi co trong
Service Pack 1)
Khoi dau voi Service Pack 1, ban co the cau hinh Outlook Express doc toan bo
e-mail theo dinh dang van ban don gian. Khi su dung tinh nang nay mot so e-mail
HTML co the khong duoc hien thi chinh xac va day du nhung khong co noi dung kich
hoat virus nao co the chay duoc. Thuc hien nhu sau:
Khoi dong Outlook Express. Tren menu Tools,
chon Options.
Kich chon nhan Read, chon Read all
messages in plain text duoi Reading Messages.
Bam OK.
Ngan chan cac chuong trinh tu dong tu e-mail gui den
khong can su dong y cua ban
Neu ban cau hinh Outlook Express nhu mot bo dieu khien e-mail mac dinh (hay
client MAPI don gian) tren nhan General, Outlook
Express se thuc hien yeu cau bang cach dung cac loi goi Simple MAPI. Mot so
virus co the loi dung tinh nang nay va phat tan bang cach gui cac e-mail sao
chep chua virus toi dia chi trong contacts cua ban. Mac dinh Outlook Express 6
ngan chan viec gui e-mail khong biet bang cach hien thi mot hop thoai cho phep
ban chon giua gui hay khong gui cac e-mail do.
Su dung Internet Explorer Unsafe File List de loc file dinh kem trong
e-mail
Khoi dong Outlook Express. Tren menu Tools,
kich chon Options.
Tren nhan Security, chon Do not
allow attachments to be saved or opened that could potentially be a
virus duoi Virus Protection.
Tuy chon nay duoc dat mac dinh trong Outlook Express Service
Pack 1 (SP1). Neu ban cho phep su dung tuy chon nay, Outlook Express se dung
chuc nang danh sach file khong an toan trong Internet Explorer 6 va thiet lap
Confirm open after download trong Folder Options de
xac dinh lieu mot file co an toan hay khong. Bat ky file dinh kem nao duoc danh
gia la "khong an toan" se bi loai ra khoi qua trinh download.
Chu y: Danh sach file khong an toan trong Internet Explorer 6
chi gom cac file co script hay ma ket hop voi chung. De bo sung them mot so kieu
file vao danh sach hay dua no ra khoi danh sach loai bo, thuc hien nhu sau:
Vao Start > Settings
> Control Panel hoac Start
> Control Panel (hoac chuyen toi
Classic View, View All Control Panel Options).
Kich dup len Folder Options.
Tren nhan File Types, kich chon kieu ban muon loai bo hoac cho phep roi
chon Advanced. Neu kieu file ban muon khong nam trong danh sach, thuc
hien cac buoc sau:
a. Chon New.
b. Trong hop thoai Create New Extension,
go ten file mo rong ban muon bo sung vao danh sach khong an toan.
c. Kich OK > Advanced.
Danh dau (loai bo) hoac bo dau (cho phep) truoc o Confirm
open after download.
Chu y: Ban khong the loai mot so file khoi danh sach khong an
toan bang cach go bo dau check trong hop kiem Confirm open after
download. Vi du, kieu file .exe duoc dat mac dinh nam trong danh
sach khong an toan cua Internet Explorer va khong the dua ra ngoai danh sach.
Xac dinh khi nao Outlook Express loai bo mot file dinh kem
Khi Outlook Express loai bo mot file dinh kem, canh bao sau duoc hien thi trong
o phan dau thu:
Outlook Express removed access to the following unsafe
attachments in your mail: file_name1, file_name2, and so on.
(Outlook Express da loai bo quyen truy cap vao cac file dinh kem khong an
toan sau trong e-mail cua ban: ten_file_1, ten_file_2,…).
Theo Microsoft
Article source http://w4rum.com/606.t
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