I am getting a malware which appears in my saved files.
When you open the main file it shows one or more files with the word STYLE followed by the date and another set of numbers.
If you open one of the interior files it activates the virus and it reproduces.
This changes another file usually a chapter file adding the label to it and it overwrites one or more non-deffneticizer files. The only thing I have found to stop it is erase the whole story file and resave it. This hasn't registered with and anti malware program I have tried, so you have to manually check for it.
Robin