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10 ma doc nguy hiem nhat thang 3/2007 |
Hang bao mat cua Anh Sophos vua cong bo danh sach 10 ma doc nguy hiem nhat thang
3/2007. Theo do, vi tri dan dau lai thuoc ve tay mot cai ten rat cu - Netsky.
Sau khi de mat vi tri dan dau vao tay mot cai ten rat moi HckPk - mot dong ma
doc moi duoc phat hien va vo cung nguy hiem - thi thang nay Netsky da "de dang"
gianh lai nhung gi da de mat.
"Nhung email chua chap Netsky hien van con rat nhieu tren mang Internet. No
chung minh cho su nguy hiem cua dong ma doc nay cung nhu muc do nguy hiem cua
hinh thuc phat tan ma doc bang cach gui mot so luong lon email," Carole
Theriault - chuyen gia tu van bao mat cao cap cua Sophos - cho biet.
 "Cang
nguy hiem hon khi tren mang Internet con co su ton tai cua rat rat nhieu dong ma
doc moi. Nhung nguoi dung hien nay van chua the tu bao ve minh truoc mot ma doc
da duoc phat hien tu 3 nam truoc day. Tinh hinh cang tro nen phuc tap hon ma so
luong nguoi duoc ket noi Internet dang ngay mot gia tang."
Mac du da duoc phat hien tu 3 nam truoc day va hien cac san pham bao mat deu co
the tieu diet nhung Netsky van phat tan rat rong rai. Con so thong ke cua Sophos
cho thay trong thang qua dong ma doc nay chiem toi 32,7% tong so luong cac thong
bao nhiem virus duoc gui ve cho hang trong thang qua.
Thang 3 con chung kien su troi day cua mot "cai ten" rat quen thuoc khac la
Mytob. Dong virus nay to ra khong he kem canh so voi Netsky khi chiem toi 30,4%
tong so thong bao duoc gui ve cho Sophos.
Theo Sophos, ti le email nhiem virus thang 3 tiep tuc giam rat manh. Hien chi co
1 trong so 555 email duoc gui di la nhiem virus - tuong duong voi ti le 0,18%.
Thang 3 Sophos phat hien duoc them 8.835 ma doc moi. Con so nay cho thay ma doc
gui dinh kem qua email hien van la mot van de chua co giai phap triet de.
Danh sach 10 ma doc nguy hiem nhat thang 3
| STT |
Ma doc |
Ti le (%) |
| 1 |
Netsky |
32,7 |
| 2 |
Mytob |
30,4 |
| 3 |
Sality |
7,8 |
| 4 |
MyDoom |
5,2 |
| 5 |
Bagle |
4,1 |
| 6 |
Zafi |
3,4 |
| 7 |
Stratio |
2,6 |
| 8 |
Nyxem |
2,6 |
| 9 |
Clagger |
2,4 |
| 10 |
DwnLdr |
2,0 |
|
Khac |
6,8 |
10 quoc gia so huu nhieu website chua chap ma doc
Ngoai ra trong thang nay Sophos con cong bo danh sach nhung quoc gia so huu
nhieu website chua chap ma doc nhat.
| STT |
Ma doc |
Ti le (%) |
| 1 |
Trung Quoc (gom ca Hong Kong) |
35,6 |
| 2 |
My |
32,3 |
| 3 |
Duc |
7,5 |
| 4 |
Anh |
5,5 |
| 5 |
Nga |
4,6 |
| 6 |
Phap |
3,6 |
| 7 |
Ha Lan |
1,3 |
| 8 |
Han Quoc |
1,2 |
| 9 |
Ukraina |
1,0 |
| 10 |
Canada |
1,0 |
| Khac |
6,4 |
Theo VnMedia
Article source http://w4rum.com/1191.t
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| [By Cao Tan Kiet] [04/Apr/07] |
