Malinga, who missed his side's opening two matches with a sore back, fired back with 6-38, including the wickets of Tanmay Mishra (0), Peter Ongondo (0) and Shem Ngoche (0) with successive, full deliveries, the latter two clean bowled.The Africans were dismissed for 142.
In 2007, Malinga grabbed four in a row against South Africa
It is the second hat-trick of the 2011 World Cup after Kemar Roach took the last three Canadian wickets in West Indies' victory in Group B on Monday.
Hat-tricks in the World Cup
Chetan Sharma (India v New Zealand ), Nagpur, 1987
Saqlain Mushtaq (Pakistan v Zimbabwe), The Oval, 1999
Chaminda Vaas (Sri Lanka v Bangladesh), Pietermaritzburg, 2003
Brett Lee (Australia v Kenya), Durban, 2003
Lasith Malinga (Sri Lanka v South Africa), Providence, 2007
Kemar Roach (West Indies v Netherlands), Delhi , 2011
Lasith Malinga (Sri Lanka vs Kenya), Colombo 2011