Microsoft Word Virus
A new virus has cropped up in various countries across the world and its target appears to be corporate networks. The Duqu virus, first noted last month by a laboratory at Budapest University, has now been spotted in several other countries and appears to be sent via Microsoft Word documents attached as emails. Microsoft has announced that it is working on a fix.
The point of the new virus seems to be to gather corporate information and then send it to some as yet unknown site. Thus, it’s a form of corporate espionage. Chillingly, researchers at Symantec, the giant antivirus company, say it looks like some of the code in the virus is the same as was found in the Stuxnet virus that wreaked havoc on Iran’s nuclear program, indicating that the perpetuators were either able to obtain the code from that virus, or, are the same people.
The virus is activated when a person to whom an infected Word document was sent, opens it. The virus infects that computer then seeks out other computers through the corporate network. As it goes, it collects data and then apparently, seeks a path out to the Internet where it can send the data it’s collected to a predefined destination. Thus far it has relied on a so-named zero day exploit to take advantage of a previously unknown weakness in the Windows kernel, which means getting in and doing its dirty work before victims have a chance to come up with a means of defense against it.
Thus far, it appears that the virus has been targeted at specific types of companies, as the data- collecting part of the virus seems to seek out information pertaining to industrial control-systems. So it’s likely that whoever unleashed the virus, did so in hopes of gaining information on how companies are designing and manufacturing their products; not something the average person would need to worry about, but still enough to cause concern about the growing sophistication of computer viruses.
So far, instances of the virus have been seen in Iran, India, France, Ukraine, the UK and at least eight other countries that have not been specifically identified.
In the mean time, Microsoft has released an advisory and a stopgap fix for the zero-day vulnerability exploited by the “Duqu” Trojan, a highly targeted malware strain that some security experts say could be the most important cyber espionage threat since Stuxnet.
According to the advisory, the critical vulnerability resides in most supported versions of Windows, including Windows XP, Vista and Windows 7. The problem stems from the way Windows parses certain font types. Microsoft says it is aware of targeted attacks exploiting this flaw, but that it believes few users have been affected.
Nevertheless, the flaw is a dangerous one. Microsoft said that an attacker who successfully exploited this vulnerability could run arbitrary code, install programs; view, change, or delete data; or create new accounts with full user rights. The most likely vehicle for the exploit is a poisoned email attachment. This means that a hacker deploying the Duqu Trojan against a Windows machine that hasn’t yet downloaded the temporary fix could gain nearly total access to a person’s computer.
Microsoft is working on developing an official security update to fix the flaw. For now, it has released a point-and-click Fixit tool that allows Windows users to disable the vulnerable component. Enabling this tweak may cause fonts in some applications to display improperly. If you experience problems after applying the Fixit solution, you can always undo it by clicking “disable” image in the Microsoft advisory and following the prompts. So in reality, some of you may not be to may not be able to fix this until the next ‘Patch Tuesday’ in December.
