Archive for January, 2006

January 30, 2006

I know that music has nothing to do with Home Computer Security, but I needed a break today. If you’re looking for a great place to download music, then visit



January 27, 2006

Badware or Malware are generic terms used to describe Computer Viruses, Trojan Horses, and Spyware. defines Badware as…

Badware is software that fundamentally disregards a user’s choice over how his or her computer will be used. There are several commonly recognized terms for types of badware – spyware, malware, and deceptive adware. Common examples might be a free screensaver that surreptitiously generates ads, or a malicious web browser toolbar that makes your browser go to different pages than the ones you expected.

How do you know if your Home Computer has been infected with Badware? Common symptoms are:

  • Your Home Computer runs slower
  • Your Web Browser starts with a website that you did not choose
  • Your Home Computer is being bombarded with Popup Windows

Spybot Search and Destroy

How do you check your Home Computer for Badware and remove it? In addition to anti-virus software, I recommend that you download and install the Free program Spybot Search and Destroy.


January 26, 2006

Get Firefiox

The sales pitch is simple, Switch to Firefox. Safer, Faster, Better. Over 100 Million Downloads. Get Firefox Today. Rediscover the web.

The default Web Browsing Software included with Microsoft Windows is called Internet Explorer. Daniel Miessler sums up my personal experience in an article entitled, Why You Should Dump Internet Explorer. The single most important thing you can do to secure your Home Computer is to *stop* using Internet Explorer.

I could rant for quite a while on this issue. I could provide links to articles that share my opinion. However, I think the Microsoft Internet Explorer Home Page says it best. Count how many times security is mentioned on the page. Fixes to security problems are being sold as features. Yikes!

Firefox is an alternative Web Browser. I’ll say it again. Switch to Firefox. Safer, Faster, Better. Over 100 Million Downloads. Get Firefox Today. Rediscover the web.

Advisory: Blackworm

January 25, 2006

I know we haven’t fully covered the basics of Securing your Home Computer yet. However, occasionally a nasty program may arrive which you need to be made aware of. This Computer Worm is called Blackworm. You can read all about it by reading the Blackworm Summary.

AVG Update

Make sure you update your anti-virus software and perform a full scan of your machine before February 3rd, 2006. If you know how to backup your data, this would be a good time to do it.

Trust Me

January 24, 2006

Trustworthy Computing is not.

Anti-Virus Software

January 23, 2006

Now that we’ve learned a little about Computer Viruses, you need to protect yourself from becoming infected by them.

Rule #1: DO NOT open e-mail attachments.

Unfortunately, the simplest way to send large files between family and friends is to attach them to e-mail messages. It is not always possible to follow Rule #1, so…

Rule #2: Scan all e-mail attachments with Anti-Virus software before opening them.

AVG Anti-Virus Logo

I recommend that you use AVG Anti-Virus Free Edition. Download and install the software on your home computer and check for updates automatically.

Computer Viruses

January 20, 2006

Home Computer Viruses

We’ve all heard about Computer Viruses. If you have a Windows Home Computer you’ve almost certainly got some or have detected them. What the heck are they and why should you care?

A fantastic description of Computer Viruses can be found at Wikipedia. I realize the article contains alot of information and is quite technical. The important thing to know about computer viruses is that they are bad and you don’t want them.

The following are symptoms of a Computer Virus Infection (source:

  • Your computer starts running sluggishly
  • It shuts down unexpectedly or crashes frequently
  • It experiences memory problems or runs out of disc space
  • Unusual files or directories appear on your system
  • Strange messages appear on your screen

Computer Viruses, similar to biological viruses, have the ability to replicate themselves and cause damage to otherwise healthy systems. The good news is that software is available for your Home Computer to detect and remove them from your system. We’ll discuss how to install and use anti-virus software in a future article.

Top 10 Viruses

January 19, 2006

To learn more about computer viruses, I found Sophos to be one of the best informational sources. The Top Ten List is a good place to start.

Sophos provides fairly technical information. Don’t worry if you don’t understand it all. Recognition of the current threats is the important thing.

Phishing for You

January 18, 2006


No. I didn’t misspell the title. I regularly fish for bluegills because they taste good, they’re easy to clean, and they’re easy to catch. They’re so easy to catch, that a two year old with a Scooby-Doo fishing pole and some worms can catch fifty a day.

Often, Black Hat criminals will go Phishing for you. Why? From a criminals perspective, most Home Computer users are easy to catch. When I fish for bluegills I use worms for bait. When criminals go phishing they use your Trust for bait. Home Computer users are too trusting and consequently, easily caught.

On of the most famous computer worms was the MyDoom virus. The phishing scheme disguises itself as an e-mail message with subject lines including “Error,” “Mail Delivery System,” “Test” or “Mail Transaction Failed”. The virus contains an attachment that if executed by you, will copy itself to all users in your e-mail address book and install hidden software on your home computer.

Message Labs reported that in early January 2004, between 50,000 – 60,000 computers per hour were being infected. At its peak, about 1 in 12 e-mails on the Internet were infected with MyDoom. How’s that for a phishing expedition?

Software Firewall

January 17, 2006

A Software Firewall is a necessary component of a secure Home Computer. Think of a firewall as a security guard within your computer. I highly suggest that you read, Install and Use a Firewall Program. from the Carnegie Mellon University, Internet security Coordination Center (CERT/CC).

For Microsoft Windows users, I recommend using a Software Firewall called Sygate Personal Firewall. Unfortunately, Symantec purchased Sygate and discontinued the product. I believe the saying is, “If you can’t beat em, buy em”. Luckily, you can still download the product from tucows.

Sygate Personal Firewall

Once the software is installed, you will have full control over communications coming in and more importantly, communications going out. Computer Worm and Trojan Horse programs will often times attempt to communicate with the outside world. A Software Firewall like Sygate Personal Firewall will warn you when it happens.

Once you have installed the software, please discuss your Software Firewall experience.