Daftar Bad Chars

\x00
\x0a
\x0d
\x40
\xcc

Bad Chars x Privileged Instruction

pop ebx: \x5b
privileged instruction: \x6c

Illegal Instruction

\x09\x0a\x0b\x0c\x0d\x20\xff

No Command

\xff

• https://blog.own.sh/introduction-to-network-protocol-fuzzing-buffer-overflow-exploitation/
• https://xorl.wordpress.com/2010/11/15/cve-2010-4221-proftpd-telnet_iac-remote-stack-overflow/
• https://security.stackexchange.com/questions/149940/warftpd-exploit-strange-shellcode-behaviour Referensi
• https://resources.infosecinstitute.com/stack-based-buffer-overflow-in-win-32-platform-part-6-dealing-with-bad-characters-jmp-instruction/#gref
• https://github.com/justinsteven/dostackbufferoverflowgood/blob/master/dostackbufferoverflowgood_tutorial.md
• http://scx030c067.blogspot.com/2013/01/find-bad-character-in-buffer-overflow.html

• http://www.primalsecurity.net/0x7-exploit-tutorial-bad-character-analysis/

• https://bulbsecurity.com/finding-bad-characters-with-immunity-debugger-and-mona-py/