CAPEC-655: Avoid Security Tool Identification by Adding Data
An adversary adds data to a file to increase the file size beyond what security tools are capable of handling in an attempt to mask their actions. In addition to this, adding data to a file also changes the file's hash, frustrating security tools that look for known bad files by their hash.
Overview
CAPEC-655 (Avoid Security Tool Identification by Adding Data) is a detailed-level attack pattern catalogued by MITRE in the Common Attack Pattern Enumeration and Classification (CAPEC). It describes a recurring method attackers use to exploit software weaknesses.