Hi i am from Malaysia.i received a text message on my phone that sounds like this...Good day do you still have the items you posted on mudah for sale?am interested in buying it kindly reply to my email....alexander.william05@hotmail.com.yes i did advertise my 2nd hand item on mudah.This is a scam   this person could be linked to the Nigerian or African scam.They tell me they are interested to buy my item.Then they ask me to open a paypal account.Later they calim to have deposited their money in my paypal account. but the money wont go thru unless i wire in some processing fee thru western union to a guy in Dubai..There are believe me some who have been conned this way.

You're right, it is a scam.  The Nigerian scammers go through all the advertising sites, like craigslist.
Ask them to send you the money via Western Union.