The riff varies during the song but these are the two parts played.
[ Tab from: http://www.guitaretab.com/f/fozzey-and-vanc/334820.html ]
e|-5--4--5--2-----1--2------|
B|-7--5--7--3--2--2--3------|
G|-------------2------------|
D|--------------------------|
A|--------------------------|
E|--------------------------|
e|-5-7--9--4--5--2-----1--2------|
B|-7-9-10--5--7--3--2--2--3------|
G|------------------2------------|
D|-------------------------------|
A|-------------------------------|
E|-------------------------------|
