We have a publicly available dataset called WUIL (The Windows-Users and -Intruder simulations Logs Dataset) that can be useful, but it will depend on your needs. Let us know.
Please see our articles:
Benito Camiña, Raúl Monroy, Luis A. Trejo, Miguel Ángel Medina-Pérez
Temporal and Spatial Locality: an Abstraction for Masquerade Detection. IEEE Transactions on Information Forensics & Security (T-IFS). Accepted for publication (May 2016). ISSN: 1556-6013
J. Benito Camiña, C. Hernández-Gracidas, R. Monroy and L. Trejo. The Windows-Users and -Intruder simulations Logs Dataset (WUIL): An Experimental Framework for Masquerade Detection Mechanisms. Expert Systems with Applications. Methods and Applications of Artificial and Computational Intelligence. Volume 41, Issue 3, 15 February 2014, Pages 919–930. Elsevier