The new year has kicked off with a new worm – wishing recipients a happy new year, while infecting their computers.
W32.Mixor.Q@mm is a mass-mailing worm that drops additional malware on to the compromised computer.
According to Symantec, the worm is generating a high volume of e-mail messages, but so far infections rates have remained relatively low.
Users are warned not to open attachments called postcard.exe or postcard.zip.
The new virus affects systems running Windows 2000, Windows 95, Windows ME, Windows NT, Windows Server 2003 and Windows XP.
Meanwhile, another vulnerability has surfaced in the Windows Vista operating system, which may allow for a local privilege escalation with system-level privileges.
Microsoft has acknowledged the new zero-day issue, which affects the Windows Client Server Run-tim Subsystem (CSRSS) when called by the MessageBox function.