Bioequivalence and Bioavailability Forum

To all potential new members!

Since September the Forum is facing a wave of fake registrations and attacks by skiddies. About ten new “users” (likely bots) registered daily without activating their accounts. 97% of them were well known spammers (user name, e-mail address, IP, or domain listed in e.g., APEWS, SORBS, BotScout, FSpamlist, Stop Forum Spam, Project Honey Pot, Abusive Hosts Blocking List, DroneBL, EFnetRBL, SpamCop, SpamHaus, Tornevall, UBL, or BlockList.de).

Trend of rejected requests (HTTP 403; hits and % of total):
August         0
September  13966 (20.6%)
October    19329 (34.6%)
November  311547 (82.6%)

We are currently testing a solution (ZB Block) automatically preventing blacklisted spammers to register and login. If you are blocked and cannot register contact us. If your ISP hosts spamming accounts (mainly domains from China, the US, Russia, and the Ukraine) we can whitelist you – but only if you have a static IP. For details see the Instructions.

Thank you for understanding.

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2012-11-20 02:10: Activated ZB Block in registration form (1^st hit after six minutes).
2012-11-21 21:31: Activated ZB Block in login form (1^st hit after ten minutes).
2012-11-22 18:00: Deactivated CAPTCHA in registration form.


9 May 2017
2013-02-23 22:40: Blocked attempt № 10,000.
2013-05-24 07:48: Blocked attempt № 20,000.
2013-09-30 08:17: Blocked attempt № 30,000.
2014-03-08 23:50: Blocked attempt № 40,000.
2014-09-29 07:56: Blocked attempt № 50,000.
2015-08-05 07:34: Blocked attempt № 60,000.
2016-06-07 05:42: Blocked attempt № 70,000.
2017-05-09: Activated the Math-Captcha again (20 registrations without activation / day since March).
2017-07-18 12:22: Blocked attempt № 80,000.

Are you interested in where the bad guys come from? Have a look.