Script extraño

[Panicav]

Hace unos dias estoy encontrando de manera repetida el mismo script en uno de mis sitios, el script es el siguiente

<!-- [ c56985af0c6677caa068d0f015f9e203 ] -->
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Agradezco mucho a quienes puedan orientarme de la intencion de dicho script, la funcion que cumple, muchas gracias nuavamente. nota (e eliminado parte del contenido por una cuestion de tamaño, pero el formato es el mismo que se repite una y otra ves)