Mark of the Astro-Zombies (2002)

This is a reinterpretation by Ted V. Mikels about his original
creation of the "Astro-Zombies". This time around, it's evil
aliens who are operating on people. These strange space creatures
are planting computer chips inside human brains and replacing
organs with synthetic substitutes. The initial plan: Send dozens
of mindless Astro-Zombies, armed with razor-sharp machetes, to
Earth with orders to indiscriminately slash and kill all in sight!
A pair of ruthlessly ambitious criminals study newspaper headlines
and recall that these occurrences are somewhat similar to what
took place in another time. A scheme is formulated to capitalize
on these horrific events by gathering major foreign emissaries and
duping them into paying billions of dollars for the power to control
their own army of unstoppable walking dead. (IMDB)