I published the following diary on isc.sans.org: “Obfuscating without XOR“.
Malicious files are generated and spread over the wild Internet daily (read: “hourly”). The goal of the attackers is to use files that are:
- not know by signature-based solutions
- not easy to read for the human eye
That’s why many obfuscation techniques exist to lure automated tools and security analysts… [Read more]