OD

ollydbg.exe

PEiD

http://wenku.baidu.com/link?url=pc9pMoewgSlB01JAPxtDvcEjEgomw_O7VmDYMTjqkakiQj83raMifc6VygvR2-vqyX5ZQh-cJEexAJpFdT5hZB3QQF80iOTW7totq7t1iju