Posts Tagged ‘virus’

Flashfake (back) Mac OS X botnet

A quick post for our Mac users out there – there is a nasty trojan on the net trying to get into your system!  According to www.securelist.com it is being distributed via infected websites as a Java applet that pretends to be an update for the Adobe Flash Player.

Once installed, the trojan adds entries to the host’s file to hijack users visiting various Google sites (e.g., Google.com.tw, Google.com.tl, etc.) to an IP address in Netherlands. Trojans are infections that can expose computers to control by hackers.  A botnet – in laymans terms – is what happens when many computers are infected and the power from all those computers can be used as one.  This particular bot has already affected over 650,000 Macs – and that is no small potatoes!

The server at the IP address displays a fake webpage designed to appear similar to the legitimate Google site.

Apple has developed a tool to detect and remove the Flashback trojan according to the BBC news, technology.

For a long time, Macs have not been vulnerable to PC malware – which remains true! However – now they are vulnerable to Mac malware.  Instructions on how to confirm if your Mac has been infected can be found on the security firm F-Secure’s website.

Good luck, Mac users – if you need any help, give us a call!

Happy computing!

 

Avoiding Viruses & Malware!

First – a simple definition of what malware and viruses are.

  • Definition:  Malware and viruses can be defined as malicious software directed at your computer. Malware is actually a portmanteau of those two words.
  • Difference between virus and malware is that viruses can spread to other computers via networking, flashdrives, etc.  Sage advice – don’t go putting your flashdrives into computers you don’t know!

Viruses:

  • Viruses can now basically be considered Modern Day Warfare.
  • Take, for example, the Iran Nuclear Facility a few weeks back – ‘Someone’ injected a virus into the system that spread through all the computers and not only shut down progress, but also set it back months.

Malware, a couple examples:

  • Spyware:  Software out there gathering all your personal information covertly. Passwords, Internet usage,
  • Scareware:  Scam Software sold to consumers via certain unethical marketing practices.

What can you do?

  1. PAID antivirus/antispyware. We highly recommend NOD32 from www.eset.com. The more popular AV programs that you hear about, or that come with your computer when you buy it, are the ones that hackers attack first.
  2. Keep your Windows or Mac updated with the latest patches. Microsoft puts out patches for its programs on the 2nd Tuesday of each month and many PCs are automatically updated – it is worth double-checking that yours is too!  Go to control panels, automatic updates and make sure yours is turned on.  Then leave your PC on overnight – you’ll see a message in the morning to tell you it’s been it has been updated.
  3. Make sure you are behind a good Firewall – and not just your internet provider’s modem.  The majority of those Firewalls have a list of sites that are ‘bad’ and protect only against those.  You need a Firewall that has SPI – Stateful Packet Inspection.  This looks at individual ‘packets’ of info on a site and inspects them daily, with current information.
  4. Practice safe searching. Don’t search on current events, news or trends.  A search term of ‘Beatrice’s Pretzel Hat’ or ‘Brooklyn Decker’ is prime target for attack. Go to reputable pages such as www.cnn.com or www.minnesota.publicradio.org to view articles.
  5. Read the URL backwards! How many of you do searches and at the results page only look at the title and the description – but not the URL?  www.cnn.com – good. www.cnn.com.cn -  .cn means China – everything to the left of .cn is anybody’s guess & not what it appears to be. DO NOT PROCEED to click on it. You can’t always trust the link at the bottom either – scroll over the link to verify. Where it is bringing you will pop up in the lower left hand corner of your window.

This is just the basics, folks, in it’s simplest form so everyone can understand.  However, just like the flu shot you get, it doesn’t mean you will not get any viruses, but it is a step in the right direction!  Just wash your hands often and hope for the best.   Now go out there and practice safe computing!

 

Macintosh/Apple virus?

So finally the Macintosh/Apple operating system is prevalent enough to warrant attention from hackers.

How many out there use an Apple computer at home or in the office?

There is a new (not virus) but spyware/malware out there that is targeting Macs.  It’s called MacDefender or MacProtector.  What it will do is the same as on a PC and encourage you to pull out your credit card and buy whatever it is it’s offering.  That’s your first clue.

Don’t do it.

With an Apple you can go to the Apple menu in the upper left hand corner and choose to Force Quit this malicious little advertisement.  It shouldn’t show it’s face again.

In our opinion, the more forceful assault against the Mac OS will start with the iPhone.  In any case there’s been a shot across the bow and soon it will be time to protect your Macs just like the Windows PCs so famous for getting “infected”.  Be advised.