SASSER Worm

You may be aware of a new worm that's exploiting a vulnerability in certain Windows versions that spreads itself without needing the user to take any action (unlike an email virus).

This is the SASSER worm, and it propagates by exploiting a Windows service that listens on port 445. If you've got port 445 on your machine open to the Internet, the worm can get in without your knowledge.

Patches are available from Microsoft, via their Windows Update service.

Check what ports are open on your machine by using the handy "Shields Up!" online tool

... choose the 'Common Ports' scan. The site also has useful advice and links.

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Simon Banton

Webmaster, UKTECH