CoreUtils for Windows
http://gnuwin32.sourceforge.net/packages/coreutils.htm
CoreUtils for Windows (SourceCode,C語言)
http://sourceforge.net/projects/gnuwin32/files/coreutils/5.3.0/coreutils-5.3.0-src.zip/download
Microsoft File Checksum Integrity Verifier
http://www.microsoft.com/en-us/download/details.aspx?id=11533
下載後可以用virustotal掃瞄看看