slow train coming: original only from russia! With Mark Knopfler.
https://rutube.ru/video/1cb511472a2eebe82c01265ff4dbeb3b/

My tools may be wrong. In fact, there were only two out of three. Windows Defender and Malwarebytes. Kaspersky did not intervene. But in Malwarebytes I found no option to let it pass. At least not immediately. Thank you for your interest. :)

@Both of you: The only method I have tested so far was the Lowenstein-distance. Yet my method seemed much better to me, though only in principle. The disadvantage is the extraordinary number of calculations necessary. It may be a primitive way of pattern recognition combined with very limited abilities in coding. Nevertheless, I´ll try to sum up my thouths and post later what it is all about. May last quite some time as I am not a native speaker nor writer of English.