The following popup is not a real threat report, but rather an attempt to intimidate the user by the rogue anti-virus program AVCare:
“Your system is infected! AVCare detected 10 system security threats on your PC. Detected malicious programs can damage your PC and compromise your privacy. It is strongly recommended to remove these threats immediately.”
AVCare [...]

If you encounter the following popup, do not assume it is real, for it is merely a fake alert displayed by the equally fake anti-virus program AVCare:
“Remote Attack Alert! Unknown host tries to establish connection to your PC using restricted ports. This may be internet virus or other type of malicious or spyware program. If [...]

Six security bulletins were released by Microsoft for July, which covers one of the two vulnerabilities exploited by cybercriminals in the last 2 weeks.
The Vulnerability in Microsoft Video ActiveX Control Could Allow Remote Code Execution was used in a zero-day attack last week that involved around 967 compromised Chinese websites. A script that triggered [...]

Post from: TrendLabs | Malware Blog - by Trend Micro

July 2009 Microsoft Security Updates

This type of trojan secretly downloads malicious files from a remote server, then installs and executes the files.