Trojan lan tran tren mang Skype

Theo thong bao cua hang theo doi bao mat Websense ngay 22/3, hien mang Skype dang bi hai ma "doc" co ten Warezov va Stration tan cong.

Warezov va Stration la dang Trojan chuyen su dung may tinh bi lay nhiem de tim kiem va tan cong vao cac he thong khac. Day la lan thu hai loai Trojan nay lan tran tren mang Skype tinh tu thang 2 cho toi nay.

Theo Dan Hubbard, pho chu tich bao mat Websense, ban than loai ma doc tren khong tu nhan ban, nhung khi no chay, mot duong URL se duoc gui toi tat ca nguoi dung trong danh sach lien lac Skype. Neu chuong trinh Skype dang duoc su dung, mot thong diep cua Trojan se bat ra, du do nguoi dung nhan vao duong link de tai Trojan xuong roi tiep tuc vong lay nhiem moi.

Hai Trojan moi se mo mot cong hau (back door) tren may tinh de tin tac co the xam nhap bat hop phap vao he thong va danh cap thong tin nguoi dung, phat tan thu rac hoac khoi phat dang tan cong DoS.

Websense khuyen cao nguoi dung khong nen nhan vao cac duong link la trong nhung thong diep co dang nhu "Check up this". Khi nguoi dung nhan vao duong link nay, ho se duoc chuyen tiep toi mot site luu file Trojan co ten "file_01.exe". Nguoi dung se duoc hoi co chay file nay hay khong, neu chay se co mot loat cac file khac cua Trojan tai xuong may tinh.

Websense cung cho biet hai ma doc moi khong phai la dang ma khai thac lo hong trong Skype.

 Theo Informationweek, VnMedia