Hi Bruce, sounds like someone accidentaly hired the Russian Business Network... They have an 80% Market Share in Botnets and Toolkits capable of this...
For the captchas... You just hire a few Kids from India or China to do that if your OCR engine is not good enough... SEO business usually is some kind of weird business, like domain selling... If everyone does it this way, the internet would be crushed... May Anonymous be with you, Netzblockierer Am 10.10.2013 22:03, schrieb Bruce Perens: > I have repaired some problems that FreeDV.org was suffering due to > security attacks by SEO companies. The next time someone offers to > improve how your company appears in search engines, please consider > what's been happening to us. > > The SEO vandals had the goal of getting links to their customers sites > from FreeDV.org . Search engines count the links to a site from other > sites, so such links would tend present their customers sites closer > to the top when a search engine presents the results of a search. > > To get these links, they created a program that searched for tikiwiki > sites, and then registered logins on those sites. This program seems > to run on many computers, perhaps some of them are home computers that > have been suborned into a botnet. The program correctly decoded the > capcha (perhaps with human assistance, I don't know), confirmed the > email addresses properly, and then posted comments on the site. The > content of the comments was pseudorandom, the only important thing in > them was the links. > > So, I turned off comments when I saw this happening a while back, and > that stopped the presentation of ilicit links. I later upgraded to a > new version of tikiwiki, which gives a hint to search engines to > ignore links from the wiki when grading sites. But we were still > getting the ilicit logins. > > I removed 20,000 logins. No kidding. I added a passcode to prevent new > ones from being created by robots. But the program kept hitting my > site, and the new login registration function was the > most-frequently-served page of my web server. > > I finally had to change the URL of the registration function to keep > the program from loading down my web server. > > When you get those spams from companies that promise to improve your > search engine results, this is what they are doing. There are > legitimate search engine optimization companies out there, but there > are enough black hats that you should evaluate candidates _very_ > carefully before you hire them. > > Thanks > > Bruce > > > ------------------------------------------------------------------------------ > October Webinars: Code for Performance > Free Intel webinars can help you accelerate application performance. > Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from > the latest Intel processors and coprocessors. See abstracts and register > > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > --- > avast! Antivirus: Eingehende Nachricht sauber. > Virus-Datenbank (VPS): 131010-1, 10.10.2013 > Getestet um: 10.10.2013 21:59:28 > avast! - copyright (c) 1988-2013 AVAST Software. > http://www.avast.com > > > >
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------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134071&iu=/4140/ostg.clktrk
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