The Silver Bokoblin is much more clever, powerful, and dangerous than the other three lower-tiered Bokoblins. Silver Bokoblins tend to use similar weapons as the Black Bokoblins, including the Dragonbone Boko Clubs, bows, and shields.
The Silver Bokoblin retains all the skills other Bokoblins have, like kicking and avoiding remote bombs. New to the Bokoblin is the faster reaction time and use of more powerful attack patterns. When first encountered, they tend to use a double slash attack and will use a slower single slash attack sometimes too. They will also their jump attack and circle swinging attack more often. Speaking of the circle attack, it lasts much more longer than the weaker Bokoblins.
Hyrule Compendium Entry
Silver Bokoblins are much stronger than all it's Bokoblin variants. These Bokoblins have been influenced by Ganon's dark magic. They carry stronger Weapons than other Bokoblins. When defeated, Silver Bokoblins may drop Bokoblin Horns, Bokoblin Fangs, Bokoblin Guts, Amber, Opal, Topaz, Rubies, Sapphires, and Diamonds.