The "M" is made of 3 Hebrew symbols for the number 6 - so 666. There is a cross in the "O" - that is "witchcraft" bc when you tip the can it's an upside down cross.

The three claw marks that make up the green ‘M’ look strikingly similar to the Hebrew symbol for six, 'Vav.' Repeated three times on the can and you’ve got 666!