otool 工具 查看库/反编译等二进制信息
1 依赖库查询
otool -L Payload/XXX.app/XXX
2 查看该应用是否砸壳
otool -l Payload/XXX.app/XXX | grep -B 2 crypt
cryptid 0(砸壳) 1(未砸壳)
otool -l DingTalk | grep -B 2 crypt
cmd LC_ENCRYPTION_INFO
cmdsize 20
cryptoff 16384
cryptsize 40239104
cryptid 0
--
cmd LC_ENCRYPTION_INFO_64
cmdsize 24
cryptoff 16384
cryptsize 45400064
cryptid 0