tasklist filters support wildcard (*) if it is put at the end ->
http://stackoverflow.com/questions/36602024/regular-expression-or-wild-card-in-tasklist/36602530#36602530
tasklist /FI "IMAGENAME eq cm*"


And a double quotes can be escaped with \" unless they are not at the end.
title "aa"
tasklist /FI "WINDOWTITLE eq \"aa*"
and backslash can be escaped with double backslash
