Microsoft has announced another MS Office exploit, Bifrose.UZ, which drops a backdoor using PowerPoint (PPT) files. The exploit was discovered after a limited number of people received e-mail with the PowerPoint file as an attachment.
The vulnerability in its PowerPoint presentation software, issued by Microsoft in its Web log on July 17, allow hackers to infiltrate computer systems. The virus attacks the systems when a user launches a PowerPoint attachment to an e-mail or opens a file provided to them by the attacker. The vulnerability applies to PowerPoint 2000, 2002 and 2003.
Hackers could also lure users to a Web page that offers content or advertisements containing a file that exploits the PowerPoint software, Microsoft said.
Once the user triggers the corrupt PowerPoint file, the virus installs a keystroke logging system to capture everything typed on the machine. It also leaves the machine open to having a hacker install other malicious programs.
PowerPoint exploit will be patched in August, said Microsoft.
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