Apple's online instructions on how to dispose of this malware are still effective... contrary to Bott's negative comment of "too little, too late!"
A recent phishing scam has targeted Mac users by redirecting them from legitimate websites to fake websites which tell them that their computer is infected with a virus. The user is then offered Mac Defender "anti-virus" software to solve the issue.
This “anti-virus” software is malware (i.e. malicious software). Its ultimate goal is to get the user's credit card information which may be used for fraudulent purposes.
The most common names for this malware are MacDefender, MacProtector and MacSecurity.
In the coming days, Apple will deliver a Mac OS X software update that will automatically find and remove Mac Defender malware and its known variants. The update will also help protect users by providing an explicit warning if they download this malware.
In the meantime, the Resolution section below provides step-by-step instructions on how to avoid or manually remove this malware.
Mac OS X 10.4, Mac OS X 10.6, Mac OS X 10.5
How to avoid installing this malware
If any notifications about viruses or security software appear, quit Safari or any other browser that you are using. If a normal attempt at quitting the browser doesn’t work, then Force Quit the browser.
In some cases, your browser may automatically download and launch the installer for this malicious software. If this happens, cancel the installation process; do not enter your administrator password. Delete the installer immediately using the steps below.
How to remove this malware
If the malware has been installed, we recommend the following actions:
Removal steps
Malware also installs a login item in your account in System Preferences. Removal of the login item is not necessary, but you can remove it by following the steps below.
Use the steps in the “How to avoid installing this malware” section above to remove the installer from the download location.
Note: Apple provides security updates for the Mac exclusively through Software Update and the Apple Support Downloads site. User should exercise caution any time they are asked to enter sensitive personal information online.
So, since I run Firefox, not Safari, I shouldn't worry? (In any event, I'm not dumb enough to run an installer I didn't intentionally download, no matter how "official" looking it is.)
Thank you for the update!shalom b'SHEM Yah'shua HaMashiachMay YHvH give you comfort
on the passing of your loved ones.