The most recent from of XML Tools is v2.4.8. Although this was released on 2015-09-05, the Plugin Manager’s list of known plugins was (finally) updated about a week ago so it most likely you finally got the newest update.
My virus scanner did not have a problem with either the zip or the extracted files. It is possible you have a false positive but best to err on the side of caution. You might contact the authors of the plugin to see if they have any additional information.