What the DNSChanger malware is -- and why you should care (FAQ)

The DNSChanger malware has been around for years, but its deleterious effects are coming to a head this Monday. Here's what you have to know about it, and how to fix it.

What is DNSChanger? DNSChanger is a Trojan horse malware with many variants. It changes an infected computer's DNS settings to point to rogue, bad guy-controlled servers. These then show you ads that look real, but aren't. Basically, it redirects your legitimate Web surfing to malicious Web sites that then... Read More »

Topics: Mac Software

Tags: security , malware , Windows software , Trojan

Viruses: Destroying your systems for 25 years

LAS VEGAS--The hacker conference DefCon kicked off this morning with the rare public sighting of a now-archaic piece of technology: the 5 1/4-inch floppy disk. Mikko Hypponen, the chief technical officer for the Finnish security company F-Secure, waved the disk above his head to start off his history of PC viruses, and said, "This is Brain."

Hypponen was talking about a guest of honor housed on the disk: the original computer virus. Hypponen found the disk last year in a lockbox... Read More »

Tags: virus , Windows software , Trojan

Firefox add-on accused of malware comes up clean

Last week, Firefox users were warned by Mozilla of two add-ons that had been discovered to contain malware and removed from their add-on Web site. Mozilla backtracked on one those add-ons last night, saying that the company had worked with McAfee and determined that the Sothink Web Video Downloader is malware-free.

The initial estimate of 6,000 affected downloads has also been revised downward, to 700 downloads. Mac and Linux Firefox users were not affected by the malware discovery.

Mozilla... Read More »

Tags: freeware , Firefox , Mozilla , add-on , extension , virus , Windows software , Trojan

Mozilla yanks infected add-ons, warns users

Mozilla on Friday pulled two programs from its Firefox browser add-on site for containing malware. Sothink Web Video Downloader 4.0 and all versions of Master Filer were found to contain Trojan horse code aimed at Windows users.

In a blog post, Mozilla stated that the Master Filer add-on was able to bypass AMO's security tests.

Mozilla user CatThief discovered the threat, it said. And when Mozilla added two more security checks to its vetting process and rescanned... Read More »

Tags: freeware , Firefox , Mozilla , add-on , extension , virus , Windows software , Trojan

Kaspersky 2010 in pictures

Kaspersky Internet Security 2010 and Kaspersky Anti-Virus 2010 went live this week, and we've created a slideshow to help users see what's new and what needs work in one of the leading security programs.

... Read More »

Tags: antivirus , malware , Windows software , Trojan , 2010 , Kaspersky

Kaspersky updates security suite for 2010

UPDATED: Benchmarks provided by CNET Labs were added on Monday, August 24.

A new season of security suites is upon us, and Kaspersky has made improvements to its Kaspersky Internet Security and Kaspersky Anti-Virus programs that include changes indicative of where security software as an industry is leaning. Three new features along with expected upgrades to its antivirus engine keep Kaspersky competitive.

The full-feature suite Kaspersky Internet Security offers a complete and competitive range of security options. The... Read More »

Tags: antivirus , malware , Windows software , Trojan , 2010 , Kaspersky

New scareware sends you to fake reviews

Last week, reported on how to remove a new variant of an old scareware. This new nasty, known most commonly as Antivirus2010 or Anti-Virus-1, points you to spoofed versions of, ZDNet,, and other software sites, demanding that you download their program to clean your computer. Of course, it does nothing of the sort, merely perpetuating the infection.

However, the manner and methods Anti-Virus-1 uses to get you there are extremely clever. The infection part of... Read More »

Tags: malware , virus , Windows software , howto-security , Trojan

How to remove Antivirus XP 2008

Update: Revised instructions to include folder deletion.

Antivirus XP 2008 is back, unfortunately. It's not an antivirus app, but a cleverly disguised rogue security application that tries to get you to buy the non-existent "security" it's selling. Advertised using the common tricks of Trojans and faux security alerts, this nasty piece of malware can take over your desktop settings to mimic safe mode, display fake virus detections, and opens a faux Internet Explorer window stating that Google has detected a malware... Read More »

Tags: malware , virus , Windows software , howto-security , Trojan

Spyware Horror Story: Would you fall for this IM scam?

Submitted by Scott, Vernon Hills, Ill.

This past April, a friend of mine, Jeff, called me on a Saturday afternoon, letting me know that I was instant messaging him right then. I obviously wasn't. He said that after some lines of basic text, I acted panicked and asked for money to be wired to an African bank account, which Jeff knew immediately was bad news for the real me.

I immediately changed some passwords in key accounts and found that... Read More »

Tags: antivirus , malware , spyware , virus , Spyware Horror Story , Trojan

Stress, drama, vivid virus nightmares

Published by William; Sydney, Australia

In our house, we used to share a computer. I had Spybot - Search & Destroy and Norton Antivirus installed on it, and I became the scanning boss since my parents barely knew how to click a mouse. After about a year, I discovered "DriveCleaner" in the program manager window. I tried uninstalling it, got an error, then saw the progress bar roll backward fairly fast. At least these malware people have a sense of... Read More »

Tags: malware , spyware , virus , Spyware Horror Story , Trojan