Malware? .systemRootModeFile in ~/users/me/library Non-techie person asks:

There is a .systemRootModeFile in ~/users/me/library.

Is it malware, something horrible?

In the hidden library folder in ~/users/me I have a folder named .f5cd.
Inside that is a folder hierarchy of .java/.systemPrefs/_!%... - the last one being a string of about 25 characters - and the folder name is in bold.

Inside that is a file prefs.xml

&lt;?xml version="1.0" encoding="UTF-8" standalone="no"?&gt;
&lt;!DOCTYPE map SYSTEM "http://java.sun.com/dtd/preferences.dtd"&gt;
&lt;map MAP_XML_VERSION="1.0"&gt;
  &lt;entry key="EXPDATE" value="4994"/&gt;
  &lt;entry key="REGVER" value="2"/&gt;
&lt;/map&gt;


and also within the .systemPrefs folder are two more files
.system.lock and .systemRootModFile.
.systemRootModFile and the other files you mentioned are part of Java system preferences and are safe. See this thread.