This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.
This signature detects attempt to a remote code execution vulnerability in Microsoft Excel application while parsing specially crafted SLK files.
Microsoft Excel is a spreadsheet application that is part of the Microsoft Office suite.
Microsoft Excel is prone to a remote code-execution vulnerability. The problem occurs when parsing a font description in a SLK file.
Attackers can exploit this issue by enticing an unsuspecting user to open a specially crafted Excel file.
Successful exploits may allow attackers to execute arbitrary code with the privileges of the user running the affected application. Failed exploit attempts will likely result in a denial-of-service condition.
Vendor has issued an updated to fix this issue. Please visit the vendor's website for further details.