Windows 7: Obfuscated URLs no match for eSoft SiteFilter.

Researchers at Kaspersky labs have discovered a new banking malware campaign that uses an old trick to obfuscate malicious URLs. Rather than using a domain name or IP address for their malicious link the URL is converted to numerical bases such as octal or hexadecimal formats. These formats are supported by major browsers and serve the purpose of tricking users into following the link and infecting their machine.