RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ^BlackWidow [OR]
RewriteCond %{HTTP_USER_AGENT} ^Bot\ mailto:craftbot@yahoo.com [OR]
RewriteCond %{HTTP_USER_AGENT} ^ChinaClaw [OR]
RewriteCond %{HTTP_USER_AGENT} ^Custo [OR]
RewriteCond %{HTTP_USER_AGENT} ^DISCo [OR]
RewriteCond %{HTTP_USER_AGENT} ^Download\ Demon [OR]
RewriteCond %{HTTP_USER_AGENT} ^eCatch [OR]
RewriteCond %{HTTP_USER_AGENT} ^EirGrabber [OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailSiphon [OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailWolf [OR]
RewriteCond %{HTTP_USER_AGENT} ^Express\ WebPictures [OR]
RewriteCond %{HTTP_USER_AGENT} ^ExtractorPro [OR]
RewriteCond %{HTTP_USER_AGENT} ^EyeNetIE [OR]
RewriteCond %{HTTP_USER_AGENT} ^FlashGet [OR]
RewriteCond %{HTTP_USER_AGENT} ^GetRight [OR]
RewriteCond %{HTTP_USER_AGENT} ^GetWeb! [OR]
RewriteCond %{HTTP_USER_AGENT} ^Go!Zilla [OR]
RewriteCond %{HTTP_USER_AGENT} ^Go-Ahead-Got-It [OR]
RewriteCond %{HTTP_USER_AGENT} ^GrabNet [OR]
RewriteCond %{HTTP_USER_AGENT} ^Grafula [OR]
RewriteCond %{HTTP_USER_AGENT} ^HMView [OR]
RewriteCond %{HTTP_USER_AGENT} HTTrack [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Image\ Stripper [OR]
RewriteCond %{HTTP_USER_AGENT} ^Image\ Sucker [OR]
RewriteCond %{HTTP_USER_AGENT} Indy\ Library [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^InterGET [OR]
RewriteCond %{HTTP_USER_AGENT} ^Internet\ Ninja [OR]
RewriteCond %{HTTP_USER_AGENT} ^JetCar [OR]
RewriteCond %{HTTP_USER_AGENT} ^JOC\ Web\ Spider [OR]
RewriteCond %{HTTP_USER_AGENT} ^larbin [OR]
RewriteCond %{HTTP_USER_AGENT} ^LeechFTP [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mass\ Downloader [OR]
RewriteCond %{HTTP_USER_AGENT} ^MIDown\ tool [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mister\ PiX [OR]
RewriteCond %{HTTP_USER_AGENT} ^Navroad [OR]
RewriteCond %{HTTP_USER_AGENT} ^NearSite [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetAnts [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetSpider [OR]
RewriteCond %{HTTP_USER_AGENT} ^Net\ Vampire [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetZIP [OR]
RewriteCond %{HTTP_USER_AGENT} ^Octopus [OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Explorer [OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Navigator [OR]
RewriteCond %{HTTP_USER_AGENT} ^PageGrabber [OR]
RewriteCond %{HTTP_USER_AGENT} ^Papa\ Foto [OR]
RewriteCond %{HTTP_USER_AGENT} ^pavuk [OR]
RewriteCond %{HTTP_USER_AGENT} ^pcBrowser [OR]
RewriteCond %{HTTP_USER_AGENT} ^RealDownload [OR]
RewriteCond %{HTTP_USER_AGENT} ^ReGet [OR]
RewriteCond %{HTTP_USER_AGENT} ^SiteSnagger [OR]
RewriteCond %{HTTP_USER_AGENT} ^SmartDownload [OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperBot [OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperHTTP [OR]
RewriteCond %{HTTP_USER_AGENT} ^Surfbot [OR]
RewriteCond %{HTTP_USER_AGENT} ^tAkeOut [OR]
RewriteCond %{HTTP_USER_AGENT} ^Teleport\ Pro [OR]
RewriteCond %{HTTP_USER_AGENT} ^VoidEYE [OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Image\ Collector [OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Sucker [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebAuto [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebCopier [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebFetch [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebGo\ IS [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebLeacher [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebReaper [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebSauger [OR]
RewriteCond %{HTTP_USER_AGENT} ^Website\ eXtractor [OR]
RewriteCond %{HTTP_USER_AGENT} ^Website\ Quester [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebStripper [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebWhacker [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebZIP [OR]
RewriteCond %{HTTP_USER_AGENT} ^Wget [OR]
RewriteCond %{HTTP_USER_AGENT} ^Widow [OR]
RewriteCond %{HTTP_USER_AGENT} ^WWWOFFLE [OR]
RewriteCond %{HTTP_USER_AGENT} ^Xaldon\ WebSpider [OR]
RewriteCond %{HTTP_USER_AGENT} ^Zeus
RewriteRule ^.* - [F,L]

Дополнительный список:

RewriteCond %{HTTP_USER_AGENT} Accelerator [OR]
RewriteCond %{HTTP_USER_AGENT} Ants [OR]
RewriteCond %{HTTP_USER_AGENT} attach [OR]
RewriteCond %{HTTP_USER_AGENT} BackWeb [OR]
RewriteCond %{HTTP_USER_AGENT} Teleport.*Pro [OR]
RewriteCond %{HTTP_USER_AGENT} Bandit [OR]
RewriteCond %{HTTP_USER_AGENT} Buddy [OR]
RewriteCond %{HTTP_USER_AGENT} Collector [OR]
RewriteCond %{HTTP_USER_AGENT} Copier [OR]
RewriteCond %{HTTP_USER_AGENT} Downloader [OR]
RewriteCond %{HTTP_USER_AGENT} Drip [OR]
RewriteCond %{HTTP_USER_AGENT} eCatch [OR]
RewriteCond %{HTTP_USER_AGENT} EirGrabber [OR]
RewriteCond %{HTTP_USER_AGENT} ExtractorPro [OR]
RewriteCond %{HTTP_USER_AGENT} EyeNetIE [OR]
RewriteCond %{HTTP_USER_AGENT} FileHound [OR]
RewriteCond %{HTTP_USER_AGENT} FlashGet [OR]
RewriteCond %{HTTP_USER_AGENT} GetRight [OR]
RewriteCond %{HTTP_USER_AGENT} Gets [OR]
RewriteCond %{HTTP_USER_AGENT} Go-Ahead-Got-It [OR]
RewriteCond %{HTTP_USER_AGENT} gotit [OR]
RewriteCond %{HTTP_USER_AGENT} Go!Zilla [OR]
RewriteCond %{HTTP_USER_AGENT} GoZilla [OR]
RewriteCond %{HTTP_USER_AGENT} Grabber [OR]
RewriteCond %{HTTP_USER_AGENT} GrabNet [OR]
RewriteCond %{HTTP_USER_AGENT} Grab.*Site [OR]
RewriteCond %{HTTP_USER_AGENT} Grafula [OR]
RewriteCond %{HTTP_USER_AGENT} Gulliver [OR]
RewriteCond %{HTTP_USER_AGENT} HMView [OR]
RewriteCond %{HTTP_USER_AGENT} HTTrack [OR]
RewriteCond %{HTTP_USER_AGENT} IBrowse [OR]
RewriteCond %{HTTP_USER_AGENT} InterGET [OR]
RewriteCond %{HTTP_USER_AGENT} Internet.*Ninja [OR]
RewriteCond %{HTTP_USER_AGENT} Iria [OR]
RewriteCond %{HTTP_USER_AGENT} jetcar [NC,OR]
RewriteCond %{HTTP_USER_AGENT} JOC [OR]
RewriteCond %{HTTP_USER_AGENT} JustView [OR]
RewriteCond %{HTTP_USER_AGENT} leach [OR]
RewriteCond %{HTTP_USER_AGENT} leech [OR]
RewriteCond %{HTTP_USER_AGENT} lftp [OR]
RewriteCond %{HTTP_USER_AGENT} likse [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Magnet [OR]
RewriteCond %{HTTP_USER_AGENT} Mag-Net [OR]
RewriteCond %{HTTP_USER_AGENT} Memo [OR]
RewriteCond %{HTTP_USER_AGENT} MIDown.*tool [OR]
RewriteCond %{HTTP_USER_AGENT} Mirror [OR]
RewriteCond %{HTTP_USER_AGENT} Mister.*PiX [OR]
RewriteCond %{HTTP_USER_AGENT} Navroad [OR]
RewriteCond %{HTTP_USER_AGENT} NearSite [OR]
RewriteCond %{HTTP_USER_AGENT} Net.*Reaper [OR]
RewriteCond %{HTTP_USER_AGENT} NetSpider [OR]
RewriteCond %{HTTP_USER_AGENT} Net.*Vampire [OR]
RewriteCond %{HTTP_USER_AGENT} NetZip [OR]
RewriteCond %{HTTP_USER_AGENT} Ninja [OR]
RewriteCond %{HTTP_USER_AGENT} Octopus [OR]
RewriteCond %{HTTP_USER_AGENT} Offline.*Explorer [OR]
RewriteCond %{HTTP_USER_AGENT} Offline [OR]
RewriteCond %{HTTP_USER_AGENT} PageGrabber [OR]
RewriteCond %{HTTP_USER_AGENT} Page.*Saver [OR]
RewriteCond %{HTTP_USER_AGENT} Papa.*Foto [OR]
RewriteCond %{HTTP_USER_AGENT} pcBrowser [OR]
RewriteCond %{HTTP_USER_AGENT} Pita [OR]
RewriteCond %{HTTP_USER_AGENT} Pockey [OR]
RewriteCond %{HTTP_USER_AGENT} Pump [OR]
RewriteCond %{HTTP_USER_AGENT} Reaper [OR]
RewriteCond %{HTTP_USER_AGENT} Recorder [OR]
RewriteCond %{HTTP_USER_AGENT} ReGet [OR]
RewriteCond %{HTTP_USER_AGENT} Siphon [OR]
RewriteCond %{HTTP_USER_AGENT} SmartDownload [OR]
RewriteCond %{HTTP_USER_AGENT} Snagger [OR]
RewriteCond %{HTTP_USER_AGENT} Snake [OR]
RewriteCond %{HTTP_USER_AGENT} Stripper [OR]
RewriteCond %{HTTP_USER_AGENT} Sucker [OR]
RewriteCond %{HTTP_USER_AGENT} SuperBot [OR]
RewriteCond %{HTTP_USER_AGENT} SuperHTTP [OR]
RewriteCond %{HTTP_USER_AGENT} Surfbot [OR]
RewriteCond %{HTTP_USER_AGENT} tAkeOut [OR]
RewriteCond %{HTTP_USER_AGENT} Triton [OR]
RewriteCond %{HTTP_USER_AGENT} Vacuum [OR]
RewriteCond %{HTTP_USER_AGENT} Weazel [OR]
RewriteCond %{HTTP_USER_AGENT} WebAuto [OR]
RewriteCond %{HTTP_USER_AGENT} WebCapture [OR]
RewriteCond %{HTTP_USER_AGENT} WebCopier [OR]
RewriteCond %{HTTP_USER_AGENT} WebFetch [OR]
RewriteCond %{HTTP_USER_AGENT} Web.*Image.*Collector [OR]
RewriteCond %{HTTP_USER_AGENT} WebMirror [OR]
RewriteCond %{HTTP_USER_AGENT} WebReaper [OR]
RewriteCond %{HTTP_USER_AGENT} WebRecorder [OR]
RewriteCond %{HTTP_USER_AGENT} WebSauger [OR]
RewriteCond %{HTTP_USER_AGENT} WebSite.*Extractor [OR]
RewriteCond %{HTTP_USER_AGENT} Website.*Quester [OR]
RewriteCond %{HTTP_USER_AGENT} Web.*Spy [OR]
RewriteCond %{HTTP_USER_AGENT} WebSpy [OR]
RewriteCond %{HTTP_USER_AGENT} Webster [OR]
RewriteCond %{HTTP_USER_AGENT} WebStripper [OR]
RewriteCond %{HTTP_USER_AGENT} Web.*Sucker [OR]
RewriteCond %{HTTP_USER_AGENT} WebWhacker [OR]
RewriteCond %{HTTP_USER_AGENT} WebZIP [OR]
RewriteCond %{HTTP_USER_AGENT} Whacker [OR]
RewriteCond %{HTTP_USER_AGENT} Widow [OR]
RewriteCond %{HTTP_USER_AGENT} SpaceBison [OR]
RewriteCond %{HTTP_USER_AGENT} www\.asona\.org
RewriteRule .* - [F,L]

URL: http://www.vortexmind.net/index.php/2006-02-26-apache-htaccess-tweaking-tutorial/
Обсуждается: http://www.opennet.ru/tips/info/978.shtml