Abstract: A monitoring system may analyze system memory to determine a vulnerability statistic by identifying potential sleds within the memory, and creating a statistic that is a ratio of the amount of potential sleds per the total memory. In some cases, the statistic may be based on the number of instructions or bytes consumed by the sleds. The potential sleds may be determined by several different mechanisms, including abstract payload execution, polymorphic sled detection, sled surface area calculation, and other mechanisms. The monitoring system may be a multi-threaded operation that continually monitors system memory and analyzes recently changed objects in memory. When the vulnerability statistic rises above a certain level, the system may alert a user or administrator to a high vulnerability condition.