Hard Light Productions Forums
Off-Topic Discussion => General Discussion => Topic started by: Descenter on August 16, 2005, 12:24:06 am
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I have just been informed that a Major trojan virus has been discovered, about the end of last week. Might want to get the latest update from Windows and download the newest defs for your virus scanner. The HP plant here in Boise, posted that if any computer not updated by today would be locked out of the network, so I imagine that this is a big problem. Thought everybody would like to know.
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Rather unspecific, no? :p
http://isc.sans.org/diary.php?date=2005-08-14 <-- This?
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eh well, didn't have much to go on except my dad's word, sorry.
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Gee, a new Windows virus. It must be one of those "once in your lifetime" events. :p
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Given that Windows breaks whenever I patch it (nice, no?), I'll just have to ride the storm out with my various antiviral and firewall guff.
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As long as you have a NAT router with firewall and only open non-standard ports above the first 1056 ports, you should never have to worry about any kind of malware. However, even if you only open ports that are above the 1056 port range, you best check if those ports are used by anything. The safest range of open ports is naturally in the range of 21845-43690, any port scanner would simply take ages if scan is initiated from port 0 or 65535. To further tighten security, your firewall router should not even respond to pings from WAN, and you should use a software firewall to stealth forwarded ports when an application is not using those ports, even Windows XP's own firewall will stealth unused ports even if said ports are forwarded from the router.
One of those sites you can check if a port is used is http://ports.tantalo.net/
After this, all you need to worry about are operating system security updates and virus scanner. Of Windows operating systems, Windows XP has built-in firewall so no 3rd party firewall required. Linux, OSX, BSD, etc operating system users probably know their security so this post was unnecessary for them.