Patent ID: 7644127
Filing Date: 2010-01-05
Classification: H04L

Abstract:
1. A method for analyzing character codes in text of a message to determine a probability that the message is spam, the method comprising: (a) receiving a message that includes character codes in text of the message; (b) identifying character codes of the text that are likely being used to obfuscate a word or phrase of the text; (c) deobfuscating each word or phrase of the text that is identified at step (b) as likely being obfuscated, to produce deobfuscated text; and (d) determining an extent that the character codes of the text are identified as likely being used to obfuscate a word or phrase of the text by determining one or more of the following (e) analyzing the deobfuscated text by comparing the deobfuscated text to text of one or more other messages known to be spam; (f) determining a probability that the message is spam based on both