On Wed, 7 May 2003, Jacco Tunnissen wrote: > However, a little bit more information about this thing would be better. For > instance: a rename from kes.wirehub.nl to proxyscan.wirehub.nl, and a > relevant URL in the HTTP Referer for more information about these scans. Renaming the server is currently not an option. Anyway, proxy testing does not involve referer fields at all. These tests are not done by web browsers ... > If you feel that the amount of scans is abusive, you should inform Wirehub > about this, of course. Perhaps this thing needs some more finetuning. Certainly not. It's as finely tuned as it can be. Finding open proxies without portscans is impossible nowadays. Open proxies have been found on close to 7,000 different ports ranging from 21 to 65531. We do stop scanning when an open proxy port has been found (we use 10,000 port increments, looking for a result after every increment), but a full scan will be done before the IP is declared 'clean' and then excluded for 3 months. If the full test cannot be done, a weekly retest may occur (depending on whether there's a trigger to start the test). http://groups.google.com/groups?q=group:*abuse*+insubject:Additions/Deletions&hl=en&lr=&ie=UTF-8&scoring=d&selm=Pine.WNT.4.53.0305070802250.-228138505%40groaarrr.bengrimm.net&rnum=1 Sorry if this bothers people, but we all know how much damage open proxies cause, and looking at stats of our own (http://basic.wirehub.nl/spamstats.html) and reports from countless ISPs using proxies.blackholes.wirehub.net, we say there's no gain without some pain. The fact that we found 140,000 open proxies (and we're still adding 1000-3000 every single day with no indication that that number will decrease anytime soon) in just a few months should prove that point. -- Wirehub! Internet Abuse Handling Dept. - abuseat_private -- - Blacklists/DNSBLs: http://basic.wirehub.nl/spamstats.html - - AUP: http://www.nl.easynet.net/pub/av/aup/nl (Dutch) ------ - AUP: http://www.nl.easynet.net/pub/av/aup/en (English) ---- - Wirehub! Internet ------------ part of easynet Group plc -- ---------------------------------------------------------------------------- Attend Black Hat Briefings & Training Europe, May 12-15 in Amsterdam, the world's premier event for IT and network security experts. The two-day Training features 6 hand-on courses on May 12-13 taught by professionals. The two-day Briefings on May 14-15 features 24 top speakers with no vendor sales pitches. Deadline for the best rates is April 25. Register today to ensure your place. http://www.securityfocus.com/BlackHat-incidents ----------------------------------------------------------------------------
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