Caller id +208845005 called my cell and asked for me by name.  Caller told me my computer was being attacked.  I told them I'm not stupid enough to listen to them and hung up.  Called back immediately, but I did not answer.

Very poor connection with strongly accented English.  Country code 20 is Egypt, but perhaps the call was actually from Ukraine since the the caller ID matches the UIN of an ICQ user in Ukraine.