This brief whitepaper is about web crawlers, in particular DIRB web crawler, and an analysis on how gathering information with crawlers can be dangerous for sites. Written in Portuguese.
You can download it from the following link: https://packetstormsecurity.com/files/download/122604/Colentado_informaoes_em_WebSites.pdf
Source: https://packetstormsecurity.com/files/122604/Colentado-De-Informacoes-Em-Websites.html