14. The system of claim 13 , wherein: the determination module determines that the potentially malicious event and the other event occurred simultaneously; and the confidence module assigns, to the other signature, the confidence score that indicates the maximum level of confidence based at least in part on the potentially malicious event and the other event occurring simultaneously.
13. The system of claim 12 , wherein: the determination module determines that the confidence score of the malware signature indicates the maximum level of confidence in the accuracy of the malware signature; and the confidence module assigns, to the other signature, a confidence score that indicates a maximum level of confidence in the accuracy of the other signature based at least in part on the confidence score of the malware signature.