Kiran Bandla
130 lines
4.6 KiB
Python
Executable File
130 lines
4.6 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
"""
|
|
(c) Immunity, Inc. 2004-2007
|
|
|
|
|
|
U{Immunity Inc.<http://www.immunityinc.com>}
|
|
"""
|
|
|
|
import immlib
|
|
import getopt
|
|
|
|
|
|
__VERSION__ = '1.1'
|
|
|
|
DESC= "Static Analysis: Mark the tiny ones"
|
|
|
|
def usage(imm):
|
|
""" All the options"""
|
|
imm.log("!mark search and mark given function")
|
|
imm.log("!mark [-f NAME ] [-c COMMENT] [-m MODULE]")
|
|
imm.log("Example: mark with DANGER_MOUSE string all the strcpy ones")
|
|
imm.log("!mark -f strcpy -c DANGER_MOUSE -m ALL")
|
|
|
|
|
|
def main(args):
|
|
imm = immlib.Debugger()
|
|
|
|
if not args:
|
|
imm.log("### Immunity's Mark the tiny ones script###",focus=1)
|
|
imm.log("Command ok, but no args, using defaults")
|
|
try:
|
|
opts, argo = getopt.getopt(args, "f:c:m:")
|
|
except getopt.GetoptError: #get args, if error, show usage
|
|
usage(imm)
|
|
return "Bad argument %s" % args[0]
|
|
|
|
|
|
#tiny ones default list
|
|
tinyones=[]
|
|
tinyones.append("strcpy")
|
|
tinyones.append("memcpy")
|
|
tinyones.append("memmov")
|
|
|
|
|
|
module=None
|
|
function=None
|
|
function_address=0
|
|
comment="default comment"
|
|
|
|
|
|
#parsing args
|
|
for o,a in opts:
|
|
if o == "-f":
|
|
try:
|
|
function = a
|
|
function_address=imm.getAddress(function)
|
|
imm.log("%s address: 0x%8x" % (function,function_address),focus=1)
|
|
except ValueError, msg:
|
|
imm.log("No function given, using the tiny ones")
|
|
if o == "-c":
|
|
comment = a
|
|
imm.log("Comment: %s" %comment)
|
|
if o == "-m":
|
|
if a and a != "ALL":
|
|
try:
|
|
module = imm.getModule(a)
|
|
if not module:
|
|
return "Invalid module: %s" % a
|
|
else:
|
|
imm.log("module: %s" %module.getName())
|
|
base = module.getBase()
|
|
except ValueError, msg:
|
|
return "Invalid module: %s" % a
|
|
else:
|
|
regs=imm.getRegs()
|
|
module = imm.findModule(regs['EIP']) # if no module given, use the one we are standing on
|
|
if not module:
|
|
return "Module?"
|
|
else:
|
|
imm.log("module: %s" %module[0])
|
|
base=module[1]
|
|
|
|
#all data, find and mark
|
|
if module == "ALL":
|
|
mods = imm.getAllModules()
|
|
for mod in mods:
|
|
refaddr=imm.getInterCalls(mod.getBase())
|
|
for a in refaddr.keys():
|
|
op = imm.disasm(a)
|
|
#imm.log("op: %s"% op.comment)
|
|
decoded=imm.decodeAddress(refaddr[a][0][2]) # decode destination
|
|
if function_address != 0:
|
|
if function in decoded: #and ask if function name is in destination
|
|
imm.log("From: 0x%08x - to 0x%08x" %(a,refaddr[a][0][0]))
|
|
imm.log("Decoded destination: %s" % decoded)
|
|
imm.setComment(a,comment) #so, set your comment
|
|
else:
|
|
for function in tinyones:
|
|
if function in decoded: #and ask if function name is in destination
|
|
imm.log("From: 0x%08x - to 0x%08x" %(a,refaddr[a][0][0]))
|
|
imm.log("Decoded destination: %s" % decoded)
|
|
imm.setComment(a,comment) #so, set your comment
|
|
|
|
|
|
|
|
else:
|
|
regs=imm.getRegs()
|
|
refaddr=imm.getInterCalls(regs['EIP'])
|
|
for a in refaddr.keys():
|
|
op = imm.disasm(a)
|
|
#imm.log("op: %s"% op.comment)
|
|
decoded=imm.decodeAddress(refaddr[a][0][2]) # decode destination
|
|
if function_address != 0:
|
|
if function in decoded: #and ask if function name is in destination
|
|
imm.log("From: 0x%08x - to 0x%08x" %(a,refaddr[a][0][0]))
|
|
imm.log("Decoded destination: %s" % decoded)
|
|
imm.setComment(a,comment) #so, set your comment
|
|
else:
|
|
for function in tinyones:
|
|
if function in decoded: #and ask if function name is in destination
|
|
imm.log("From: 0x%08x - to 0x%08x" %(a,refaddr[a][0][0]))
|
|
imm.log("Decoded destination: %s" % decoded)
|
|
imm.setComment(a,comment) #so, set your comment
|
|
|
|
|
|
return "mark finished executing"
|
|
|
|
|
|
|