keychain_dumper读取keychain-2数据报错，请大神支援

[FengDeYiWang]

keychain-2.db权限是777
keychain_dumper的权限也是777

手机已经越狱了的

运行就报错：./keychain_dumper: cannot execute binary file: Operation not permitted

请大神帮帮忙 里面有重要数据 需要恢复

iPhone:/tmp root# ./keychain_dumper
-sh: ./keychain_dumper: cannot execute binary file: Operation not permitted
iPhone:/tmp root# keychain_dumper
Killed: 9
iPhone:/tmp root#