Image and Description by Bleeping Computer:
In the event you or someone you know is fooled by this rogue trojan, detailed removal instructions are available at Remove the Fake Microsoft Security Essentials Alert Trojan.
"The fake Microsoft Security Essentials Alert is a Trojan that attempts to trick you into thinking you are infected so that you will then install and purchase one of 5 rogue anti-virus programs that it is distributing. When the Trojan is run it will masquerade as an alert from the legitimate Windows Microsoft Security Essentials Program anti-virus program. This alert will be titled Microsoft Security Essentials Alert and states that a Trojan was detected on your computer. It will list this Trojan as Unknown Win32/Trojan and state that it is a severe infection. It will then prompt you to clean your computer using the program in order to remove it. When you click on the Clean Computer or Apply actions button, it will state that it was unable to remove it and then prompt you to scan online. If you click on the Scan Online button it will list 35 different anti-virus programs, 30 of which are legitimate anti-virus programs and 5 that are rogues that the Trojan is distributing. These five rogue programs are:
- Red Cross Antivirus
- Peak Protection 2010
- Pest Detector 4.1
- Major Defense Kit
- AntiSpySafeguard or AntiSpy Safeguard
During this fake online scan only the 5 fake anti-virus programs listed above will state that this supposed Trojan is an infection. It does this to scare you into clicking the Free Install button next to them that will install the rogue program onto your computer and then reboot your computer. It should be noted that Red Cross Antivirus, Peak Protection 2010, Pest Detector 4.1, Major Defense Kit, AntiSpySafeguard, and AntiSpy Safeguard that this Trojan is distributing are exactly the same."
- If additional assistance is needed to clean the computer, follow the posting instructions at one of these sites that provide Malware Removal Help.
- Review the 4 Steps to Protect Your Computer and check that third-party programs such as Adobe Flash, Adobe Reader and Java are up-to-date.