Detects 'long-standing' security vulnerabilities in Microsoft Office

Security firm Bkav on July 22 has warned that a Microsoft Office vulnerability has been quietly exploited since 2009.

A vulnerability in Office 2003 has just been discovered

According to experts, during nearly 4 years, many users in Vietnam may have become victims without knowing it, even though they regularly update the manufacturer's patches.

Specifically, the MS13-051 vulnerability exists in the PNG image processing mechanism of Microsoft Office 2003. To exploit, hackers create a Word text file that has installed malicious code, with compelling content to lure users. open. As long as the file is opened, the virus will immediately be activated, creating a backdoor for hackers to take control of the remote system.

This is a serious flaw, especially experts say the exploit code MS13-051 has silently appeared four years ago on the Internet. This means that many users can be tracked, stolen, changed data . without knowing it.

Bkav recommends, users should upgrade to a higher version of Microsoft Office 2003. In addition, to prevent malicious infection from text files, users need to install capable antivirus software. anti-spyware and anti-spyware.