Are there scorpions in Malawi?

Yes. You'll get these small brown fellas in the house (knock out shoes before wearing and never walk barefoot, especially at night when you can't see them) and bigger, darker, more armoured ones around water (near the lake etc.). They aren't that common though, I have lots of family there and only one cousin (of like 10 various family members) and my grandma have been stung to my knowledge.

DISCLAIMER: I am not a zoologist or entemologist or scorpion specialist, nor am I a doctor and I assume no legal or other form of responsibility for this advice or for any outcome that may result from your having read and/or followed this, it is simply my own experience.