Trojan leverages patched Microsoft Office flaw

Powered by SC Magazine
 

The exploit arrives as an email.

Researchers at Symantec said they have spotted a trojan taking advantage of a previously patched Microsoft Office vulnerability.

The exploit, which is being used in targeted attacks, arrives as an email that contains a Microsoft Word file and a separate DLL file, a rare combination considering DLL files are not typically sent over email.

"The exploit makes use of an ActiveX control embedded in the Word document file," senior researcher Joji Hamada wrote Thursday in a blog post. "When the Word document is opened, the ActiveX control calls fputlsat.dll, which has the identical file name as the legitimate DLL file used for the Microsoft Office FrontPage Client Utility LIbrary. If the exploit is successful, malware is dropped onto the system."

The trojan, dubbed "Activehijack" by Symantec, takes advantage of a vulnerability rated "important" that was patched by Microsoft in September with bulletin MS11-073.

To avoid the exploit, users should ensure they have installed the patch and remain wary of emails that contain DLL files, Hamada said.

This article originally appeared at scmagazineus.com

Copyright © SC Magazine, US edition


Trojan leverages patched Microsoft Office flaw
 
 
 
Top Stories
Soft drinks and SoftLayer: A solution for hard times?
Coca-Cola Amatil's CIO Barry Simpson shares his story of cost-cutting, outsourcing and why his software developers to ride around in delivery trucks.
 
Optus considers breaking net neutrality in Australia
May charge Netflix, OTT providers for premium service.
 
AGL restructure sees CIO depart
Owen Coppage to leave after ten years.
 
 
Sign up to receive iTnews email bulletins
   FOLLOW US...
Latest articles on BIT Latest Articles from BIT
Small business win in a budget with 'fair' savings: Abbott
Apr 17, 2015
Tony Abbott has reaffirmed that the government’s aim is “always to get taxes ...
Xero now includes an inventory function built-in
Mar 26, 2015
Xero has added inventory and other major new features to the latest release of its cloud ...
Apple reveals its new MacBook
Mar 13, 2015
Replacing the MacBook Air as Apple's thinnest laptop, the new MacBook comes packed with features.
Xero has released a new version of its app for the iPad
Mar 6, 2015
iPad-wielding Xero users can now take advantage of a new version of the iOS app for the cloud ...
Microsoft is offering Azure for Disaster Recovery to Australian SMBs
Feb 10, 2015
If you haven't talked to your IT provider about disaster recovery, it might be worth discussing ...
Latest Comments
Polls
Do you support the Government's data retention scheme?

   |   View results
Yes
  11%
 
No
  89%
TOTAL VOTES: 2334

Vote