Bits from Bill

Technology thoughts leaking from the brain of "Bill Pytlovany"

Tuesday, April 29, 2014

Computer Security Will Never Be the Same

This has been a remarkable month and the impact on how I view computer security will never be the same. The last time anything like this occurred was in the 90’s when I was infected with a complex worm looking to steal AOL passwords. When customer support told me to format my hard drive it encouraged me to create WinPatrol. The concept used in WinPatrol had never been done before but since my programming skills were busy on other projects it remained just a side project.

aprilI started April 2014 making it clear what Microsoft’s lack of support for Windows XP would really mean. By the end of the month the worse case prediction appears to be coming true. Microsoft received details of an active zero-Day vulnerability from security platform developer,
FireEye.  Not only does this threat affect nearly all versions of Internet Explorer and Windows,  attacks using this vulnerability are currently being reported. 

The software  already “in the wild” uses a Flash(.swf) file to call JavaScript in Internet Explorer eventually accessing protected memory that had been randomized as a form of protection. The entry method has been a known flaw since last October but until now wasn’t found to trigger this kind of attack. Microsoft has posted a new security advisory at https://technet.microsoft.com/en-US/library/security/2963983. The Microsoft Security Response Center has been working through the weekend  testing a solution they hope to release soon.  Even though the flaw is in Internet Explorer if you’re using Windows XP you won’t receive an update. No matter how much you’re tempted to view a video you hear about on Facebook, Twitter or in your Email, don’t do it.

tvbleed

The other major concern in April was called Heartbleed.  While the media coverage was over the top, few really understood what this software failure meant.  You may have heard that 66% of the worlds web servers were affected. In fact, less than 7% were actually running a version of the program OpenSSL that allowed access to 64kb chucks of data belonging to others.  Even with this seemingly low number, Heartbleed opens up a couple of troubling issues. Problem #1: Data exposed by this flaw was raw and unencrypted. It was available to anyone no matter how secure you made your computer or how sophisticated the attack. The attacker didn’t need to know you to access your data.  Problem #2: This event demonstrated how defenseless we all are any time we use the Internet. This was the result of a programmer and reviewers missing a simple error. I can only imagine how much of the Internet uses software with existing backdoors created by design.

This year I’ve done a lot to make WinPatrol easier and useful to a wider audience. Given these serious threats my motivation hasn’t diminished.fontalert The basic concept of WinPatrol detecting changes continues to be a model that make sense. While some attacks may require the PLUS version we have one advantage. Ironically, WinPatrol isn’t always taken seriously so it continues to notify users while many popular Anti-Virus programs are disabled.

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UPDATE 5/2/2014
Microsoft has released a security update on May 1st.  This update will repair the failure found in Microsoft Internet Explorer.
Security Garden: Out of Band Security Update for IE Zero-Day Vulnerability
The patch is available as a Windows Auto Update.   Microsoft surprised many by making this available on machines running Windows XP.
WinBeta: I’m sorry Windows XP users, but Microsoft shouldn’t have patched your OS

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Friday, November 30, 2007

Searchland Security Advisory High

If you haven’t gotten around to updating your anti-virus software and/or installed the newest Windows update patches the time is now! In the last few weeks our users have reported 3 times the normal number of malware attempts.

One new approach is to bomb search engines with malware sites. Google and others have been cleaning up their results as quickly as possible but it’s an ongoing battle.

HEADS UP: More Google poising on the way? SunbeltBLOG


Malware Advisory


If you think the search engines are in the business of filtering out the bad guys you would be wrong. Even some paid advertising was recently found to send folks to malware sites. They do their best to keep you safe but that’s not really their responsibility.

The bottom line is you need to take steps to stay safe. Here are just a few timely tips.

  • Update Windows
    One of the most common entries into your system is a well known vulnerability you’ll see referred to the IFRAME exploit. Microsoft has corrected this problem and as long as you’ve installed all the Windows Update patches you’re better off.

  • Don’t download that CODEC
    A popular trick to get users to download files is to make you think it’s required. It doesn’t have to be a video of a naked Brittney. It could be a video of a cute kitty but if it says, you must install this codec before viewing the video, STOP.

  • Your computer is not a “potential Spyware operation”.
    Don’t fall for a pop up that says your computer is infected. Even if this is true any web page that detects this without you asking is a scam. You’ll end up with is Rogue Anti-Spyware software which will exhort a payment from you before giving you control of your own computer. If you want security software go with a known company.

  • Disconnect your computer at night. (New)
    Turning off your computer at night has long been debated within the computer industry and I won’t get into it now. I will advise at the least, disconnect your computer from the Internet when not in use. Even if you think your computer is clean you could may infected and your computer could act as a “bot”. You’re also at risk to be infected by some vulnerability like MSBlaster that hasn’t been made public yet. If everyone got in the habit of turning off the internet when not in use it couldn’t hurt.

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