Archive for the 'security' tag

Watch out for false search engine results

April 18th, 2009

Security web sites are reporting a new type of virus attack that tricks Internet search engines into falsely promoting malicious web sites to the top of the results list for some searches. If a user then visits one of the malicious sites, they are prompted to download and install the MS AntiSpyware 2009 Rogue Security Software, which is actually malware.

Please do NOT respond to any web-based attempts to get you to install anti-spyware software. As long as you have an up-to-date version of McAfee VirusScan+AntiSpyware on your computer, you are well protected.

Beware of Spoof e-Cards

February 20th, 2008

Hot on the heals of the Valentine Storm Worm e-blast are more emails spoofing well-known e-card services. These spoof emails pose as e-cards but actually attempt to install trojan virus software on your computer. (Read more…)

More on Malware: Fake Codecs

December 11th, 2007

A little over a month ago, I wrote about a new kind of malware for Macs (Mac Users, be wary!) — a DNS-changing trojan posing as a codec (used for watching videos online). The same tactics are used by malware designers to infect PC computers; read this post from McAfee Avert Labs for an example of a fake codec: More Malware-Laced Codecs

For technical information from McAfee: Puper.dldr

Edit: for more information on DNS-changing trojans: DNS attack could signal Phishing 2.0 [MacWorld.com]

How to: Get rid of pop-ups! (and other annoying malware)

December 5th, 2007

Q: I haven’t been visiting any sites that I hadn’t at the beginning of the year, but I’ve been getting a lot of pop up ads recently that significantly slow down my computer. How can I fix this?

A: As you’ve probably guessed, keeping your computer free from malware (which include viruses, adware, spyware, and annoying popups) isn’t easy — but it can be done if you have the right tools. (Read more…)

Digital Security: Your Personal Computer

October 15th, 2007

This is the third in a series of posts on Digital Security from TechNotes.

Setting up an account password for your personal computer protects you from two kinds of “snoops”: hackers who try to login to your computer remotely; and curious roommates, friends, neighbors, or strangers who have physical access to your computer. For further protection, don’t set your computer to auto-login and have it prompt you for a password when the computer goes to sleep.

If you share your computer with roommates, friends, or siblings, consider setting up multiple user accounts, each with their own passwords. This will protect your information and allow you to control how much access other people have to your computer and what they’re allowed to do. (Read more…)