September 5, 2006 7:59 AM PDT
Word flaw hit with zero-day attack
The vulnerability affects systems running Windows 2000 and occurs when processing malicious Word 2000 documents, according to Secunia's security advisory.
"As with other recent (Microsoft) Office vulnerabilities, documents incorporating the exploit code must be opened with a vulnerable copy of Microsoft Word 2000 for it to work," Symantec's advisory stated. "As such, it makes the vulnerability unsuitable for the creation of self-replicating network worms."
Microsoft has not yet issued a patch for the vulnerability, and users are advised to forgo opening untrusted documents.
This latest exploit of an Office vulnerability follows on the heels of a similar malicious attack in June. In that particular case, users' systems would become infected when opening a malicious Excel document called "okN.xls." That malicious file contained the Trojan horse Mdropper.J, which then dropped the Booli.A program on a user's system. Booli.A would then download more malicious files to the user's PC.
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