A worm dubbed Win32/Conficker.A is making the rounds on Windows machines, exploiting a security hole that Microsoft released a patch for in October, Microsoft said on Wednesday.
The number of attacks have increased over the past couple of days, exploiting a critical vulnerability that was addressed by security update MS08-067.
The malware mostly was spreading inside corporations, but also hit several hundred home PCs, Microsoft said in a posting on the Microsoft Malware Protection Center Blog.
"It opens a random port between port 1024 and 10000 and acts like a Web server. It propagates to random computers … Read more