Yes. As the mindshackle scarabs rule currently reads (necron FAQ 1 and 3):
“At the start of the Fight subphase, after charges have been made, but before any blows are struck, randomly select a non-vehicle enemy model in base contact with the bearer of the mindshackle scarabs. That model must immediately take a Leadership test on 3D6. If the test is passed, the mindshackle scarabs have no effect. If the test is failed, the victim strikes out at his allies. Instead of attacking normally, he inflicts D3 hits on his own unit (or himself, if on his own or in a challenge) when it is his turn to attack. These hits are resolved at the victim's Strength and benefit from any abilities and penalties from his Melee weapons (the controller of the mindshackle scarabs chooses which weapon he uses, if there is a choice). If he is still alive, the victim returns to the owning player’s control once all blows in that round of combat have been struck.”
Emphasis mine.