Feeds

Exploit Wednesday follows Patch Tuesday Word update

Action adds to malicious reaction

5 things you didn’t know about cloud backup

The trend for exploiting vulnerabilities around the same time as Microsoft's monthly Patch Tuesday update continues.

Hackers have crafted a new Word exploit based on a memory corruption vulnerability addressed by Microsoft on Tuesday. The flaw was already exploited prior to the release of the fix, according to Microsoft.

Until this week the critical flaw had only been exploited in targeted attacks, but it's now getting wider play.

Symantec reports that the vulnerability is now being exploited in more widespread attacks. Malformed Word documents doing the rounds contain shell code and three pieces of malware. The malware package is unusual in that it was created using the Word for Macintosh format instead of the standard Windows (OLE) format.

Despite the formating, the malicious Word documents are actually targeted at infecting Windows PCs, according to a preliminary analysis by Symantec.

Detection against the malware - dubbed the Mdropper-Z Trojan - has been added to Symantec's security software. It also detected the separate malware files contained in the payload of the maliciously-constructed word files as Trojan-Dropper, Backdoor-Trojan, and Hacktool-Rootkit.

The use of older file formats in the exploit could backfire on hackers. "The good news is that the default configuration in Microsoft Office 2007 and Office 2003, Service Pack 3 will not allow you to open some older Office file formats, including Office for Macintosh documents," Symantec notes. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
One HUNDRED FAMOUS LADIES exposed NUDE online
Celebrity women victimised as Apple iCloud accounts reportedly popped
Rubbish WPS config sees WiFi router keys popped in seconds
Another day, another way in to your home router
Goog says patch⁵⁰ your Chrome
64-bit browser loads cat vids FIFTEEN PERCENT faster!
NZ Justice Minister scalped as hacker leaks emails
Grab your popcorn: Subterfuge and slur disrupts election run up
HP: NORKS' cyber spying efforts actually a credible cyberthreat
'Sophisticated' spies, DIY tech and a TROLL ARMY – report
NIST to sysadmins: clean up your SSH mess
Too many keys, too badly managed
Scratched PC-dispatch patch patched, hatched in batch rematch
Windows security update fixed after triggering blue screens (and screams) of death
Researchers camouflage haxxor traps with fake application traffic
Honeypots sweetened to resemble actual workloads, complete with 'secure' logins
Attack flogged through shiny-clicky social media buttons
66,000 users popped by malicious Flash fudging add-on
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.