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New Security Look-up Service

Team Cymru has launched a Malware Hash Registry (MHR) service which allows you
to query its malware sample database for computed MD5 or SHA-1 hashes.

If your hash is on the list the query will return the last time Team Cymru saw your malware and give you an approximate anti-virus detection percentage.

Team Cymru says the Registry compliments an anti-virus (AV) strategy by helping to identify unknown or suspicious files that we have already identified as malicious. This enables you to take action earlier than you would otherwise be able to.

Queries, including reasonable bulk queries, can be made using the command line only. Best of all Team Cymru is making the service publicly available and FREE.

Check here for full details

DNS Cache Poisoning

Back in the news following recent patches released to protect against attack, DNS cach poisoning is a deadly security issue that can affect the entire Internet infrastructure.

Read a little more about the DNS Cache Poisoning vulnerability that affects recursive DNS servers. There's also a story on Computerworld by Frank Hayes that offers some tips and tools to help secure your DNS server.

There's an easy to understand explanation of the DNS Cache poisoning problem here.

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  1. Nov 17, 2008

    There's an update from IETF about the Kaminsky DNS vulnerability, which might be worth reading if you want to know more about this.

    [You can find it here on the ISOC site]