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Peru 03

LogAnalysis - Detecting Abuse

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One important function of a log analysis tool is to assist in detecting abuse of your site. In the example shown here a view has been created which shows accesses to each page from individual IP addresses. The first entry in this view is immediately suspicious. Why would one IP addresses be accessing the sysysnc.zip file so many times? The following entries are also suspicious although they are different IP addresses the first part 80.8 is the same and it is likely that each one is the same person on different internet sessions with different dynamic IP addresses.  In each of these cases I was able to resolve the issue by contacting the ISP that owned the IP addresses range.

These are example of abuse from individuals but abuse can also come from other sites and an unusually high count for a particular referrer domain may also warrant investigation. I have used this technique to identify Warez sites that have been downloading and ripping off my software and forcing me to pay for extra bandwidth into the bargain!


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