Yes. my Ethernet is Intel 82579. and AppleIntelE1000e.ffs is enough. It works after I deleted the disablerKext and InjectorKext. I don't know if I need these two kexts. Thanks.
Disablerkext is used for Snow Leopard Retail installation and InjectorKext is used for SATA Ports, you can use both Disabler and Injector, you'll no problem with them!