Aliz, which affects Windows PCs, was first identified by anti-virus experts back in May but it was only this week that it began spreading rapidly.
MessageLabs, a managed services firm which scans for and blocks viruses in its clients email, recorded only a trickle of incidents of the worm prior to Monday, when it exploded onto the scene. Statistics from MessageLabs record that it blocked Aliz 1849 times yesterday and 769 times so far today, making it the second most common email infector behind the infamous SirCam worm.
Beware and take caution when opening your email Neowinian..
News source: CDFreaks - Aliz worm turns, bites Windows users