Translation - English-Portuguese - virus found exploit

Exploit n. [originally cracker slang] 1. A vulnerability in software that can be used for breaking security or otherwise attacking an Internet host over the network. The Ping O' Death is a famous exploit. 2. More grammatically, a program that exploits an exploit in sense 1. Source: Jargon File.

From: http://www.websters-online-dictionary.org/definition/exploit