7500 computers in Vietnam infected with ‘express service’ viruses
According to BKAV, the emails sent to Vietnamese email users under the false names had similar content: “The parcel sent to your home address. And it will arrive within 3 business days. More information and the tracking number are attached in the document below”.
BKAV’s experts say that if decompressing the attached file, users will see the files with the suffix “.doc” or “.pdf”. In fact, these are the malicious codes hidden under the icons of file “.doc” or “.pdf”. Meanwhile, it is difficult to recognize that these are malicious codes.
Vu Ngoc Son, Research and Development (R&D) Director of BKAV, said that most computers have been put at the default mode which does not show file extension. Moreover, the icons make people think that these are normal documents. Therefore, email users can be easily fooled. The latest report by BKAV shows that at least 7500 computers in Vietnam have been infected with the “express service” virus. When the virus is activated, it will hold the control over computers, blackmail or turn the infected computers into the tools which send spam to other computers.
