Microsoft Morro

Morro - Free Anti-virus software from Microsoft

Microsoft is internally testing its free anti-virus software, codenamed Morro, adding that a beta version would be made available via its website. This release signal a distinct change in Microsoft's approach to the security market. Windows Live OneCare, failed to attract a major audience, MS announced plans to discontinue OneCare on June 30th 2009.
As a basic freeware security solution, Morrow will pose a threat to the livelihood of paid solutions.
Symantec shares fell 0.5 percent on Nasdaq and McAfee fell 1.3 percent on New York stock exchange, while Microsoft was up 2.1 percent.
Microsoft has said it will provide protection from several types of malicious software including viruses, spyware, rootkits and trozans.