The disclosed computer-implemented method for producing adjustments to malware-detecting services may include (1) receiving, from a plurality of malware-detecting services executing on a plurality of client computing devices, a respective plurality of probability scores with corresponding model identifiers for an analyzed file and a plurality of respective identifiers describing the malware-detecting services, (2) building a training dataset from at least a portion of the received plurality of probability scores with corresponding model identifiers, and (3) performing a security action including (A) training, with the training dataset, a malware-detecting linear regression ensemble machine learning model that is specific to an identifier in the plurality of identifiers and (B) sending the trained linear regression ensemble machine learning model to one of the plurality of malware-detecting services executing on one of the client computing devices. Various other methods, systems, and computer-readable media are also disclosed.