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iateat_op.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*
# author: SAI
import os,sys,time
import pefile
import pykd
from common import *
class ExportFuncInfo(object):
def __init__(self, funcname='', modulename='', baseaddr=0, funcaddr=0, funcoffset=0, ordinal=-1, forwarder=''):
super(ExportFuncInfo, self).__init__()
self.funcaddr=funcaddr
self.funcoffset=funcoffset
if not funcname:
self.funcname=''
else:
self.funcname=funcname
self.modulename=modulename
self.ordinal=ordinal
self.forwarder=forwarder
self.baseaddr=baseaddr
pass
class ImportFuncInfo(object):
def __init__(self, funcname='', sourcemodulename='', importmodulename='', baseaddr=0, iatoffset=0, ordinal=-1, ):
super(ImportFuncInfo, self).__init__()
self.iatoffset=iatoffset
self.funcname=funcname
self.sourcemodulename=sourcemodulename
self.importmodulename=importmodulename
self.ordinal=ordinal
self.baseaddr=baseaddr
def inspectIatEatHook(modulelist, eprocessaddr=None, targetmodulebase=None):
try:
if eprocessaddr:
cmdline='.process /P /r %x' % eprocessaddr
r=pykd.dbgCommand(cmdline)
importfunctable=[]
exportfunctable={}
for mo in modulelist:
modulepath=mo.filepath
modulename=mo.name.lower()
s=os.path.splitext(modulename)
if len(s)>=2:
modulebasename=s[0]
else:
modulebasename=modulename
baseaddr=mo.baseaddr
if not os.path.exists(modulepath):
continue
elif not baseaddr:
continue
filedata=open(modulepath, 'rb').read()
pe = pefile.PE(data=filedata, fast_load=True)
if pe.DOS_HEADER.e_magic!=0X5A4D or pe.NT_HEADERS.Signature!=0x4550:
raise Exception("%s is not a pe file" % modulepath)
pe.parse_data_directories(pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_EXPORT'])
if hasattr(pe,'DIRECTORY_ENTRY_EXPORT'):
exporttable=pe.DIRECTORY_ENTRY_EXPORT
for i in exporttable.symbols:
funcoffset=pe.get_rva_from_offset(i.address_offset)
funcaddr=baseaddr+i.address
#print hex(baseaddr+funcoffset) ,hex(funcaddr)
info=ExportFuncInfo(i.name, modulename, baseaddr, funcaddr, funcoffset, i.ordinal, i.forwarder)
exportfunctable[funcaddr]=info
pe.parse_data_directories(pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_IMPORT'])
if hasattr(pe,'DIRECTORY_ENTRY_IMPORT'):
importtable=pe.DIRECTORY_ENTRY_IMPORT
for importitem in importtable:
importname=importitem.dll
for i in importitem.imports:
#thunkvalue=i.bound
iatoffset=i.address-pe.OPTIONAL_HEADER.ImageBase+baseaddr
funcname=i.name
#print '%s %s %x %x %s' % (importname, funcname, baseaddr, iatoffset, i.ordinal)
info=ImportFuncInfo(funcname, modulename, importname, baseaddr, iatoffset, i.ordinal)
importfunctable.append(info)
#for info in exportfunctable.values():
# print info.funcname, hex(info.funcaddr)
#return
#inspect export table
for info in exportfunctable.values():
if not targetmodulebase or (targetmodulebase==info.baseaddr):
sourceoffsetvalue=info.funcaddr-info.baseaddr
try:
currentoffsetvalue=pykd.ptrDWord(info.funcoffset+info.baseaddr)
except Exception, err:
print 'EATHOOK:(%s!%s) baseaddr:%x offset:%x value:%x<->????????' % (info.modulename, info.funcname, info.baseaddr, info.funcoffset, sourceoffsetvalue)
continue
if sourceoffsetvalue!=currentoffsetvalue:
print 'EATHOOK:(%s!%s) baseaddr:%x offset:%x value:%x<->%x' % (info.modulename, info.funcname, info.baseaddr, info.funcoffset, sourceoffsetvalue, currentoffsetvalue)
print 'inspect EATHOOK completely'
#inspect import table
for i in importfunctable:
if not targetmodulebase or (targetmodulebase==i.baseaddr):
try:
currentfuncaddr=pykd.ptrPtr(i.iatoffset)
except Exception, err:
if i.ordinal:
#by ordinal
print 'IATHOOK:(source:%s import:idx:%s!%d)<->????????' % (i.sourcemodulename, i.importmodulename,i.ordinal)
else:
#by name
print 'IATHOOK:(source:%s import:%s!%s)<->????????' % (i.sourcemodulename, i.importmodulename,i.funcname)
continue
if not exportfunctable.get(currentfuncaddr):
hookfuncname=pykd.findSymbol(currentfuncaddr)
if i.ordinal:
#by ordinal
print 'IATHOOK:(source:%s import:%s!idx:%d)<->%x(%s)' % (i.sourcemodulename, i.importmodulename,i.ordinal, currentfuncaddr, hookfuncname)
else:
#by name
print 'IATHOOK:(source:%s import:%s!%s)<->%x(%s)' % (i.sourcemodulename, i.importmodulename,i.funcname, currentfuncaddr, hookfuncname)
print 'inspect IATHOOK completely'
except Exception, err:
print traceback.format_exc()
from dll_op import *
def inspectProcessIatEatHook(eprocessaddr=None):
if eprocessaddr:
eprocessobj=pykd.typedVar('nt!_EPROCESS', eprocessaddr)
eprocessinfo=ProcessInfo()
if not eprocessinfo.init(eprocessobj):
print 'it is not a eprocess'
return
processlist=[eprocessinfo]
else:
processlist=listProcessByPsActiveProcessHead()
if not processlist:
print 'can not get process list'
return
for eprocessinfo in processlist:
print '='*10, 'process:%x pid:%d %s' % (eprocessinfo.eprocessaddr, eprocessinfo.pid, eprocessinfo.filepath), '='*10
modulelist=listModuleByVadRoot(eprocessinfo.eprocessaddr)
if not modulelist:
print 'the process has no modules(vadroot is null)'
else:
inspectIatEatHook(modulelist, eprocessinfo.eprocessaddr)
print
print 'inspect completely'
from driver_op import *
def inspectDriverIatEatHook(driverbase=None):
driverlist=listDriverByPsLoadedModuleList()
if not driverlist:
print 'can not get driver list'
return
inspectIatEatHook(driverlist, targetmodulebase=driverbase)
print
print 'inspect completely'
def help():
print '-inspectallprocess'
print '-inspectprocess eprocessaddr'
print '-inspectalldriver'
print '-inspectdriver driverbase'
if __name__=='__main__':
try:
if len(sys.argv)<2:
help()
sys.exit(0)
if sys.argv[1]=='-inspectallprocess':
inspectProcessIatEatHook()
elif sys.argv[1]=='-inspectalldriver':
inspectDriverIatEatHook()
elif sys.argv[1]=='-inspectprocess':
eprocessaddr=int(sys.argv[2], 16)
inspectProcessIatEatHook(eprocessaddr)
elif sys.argv[1]=='-inspectdriver':
driverbase=int(sys.argv[2], 16)
inspectDriverIatEatHook(driverbase)
else:
help()
except Exception, err:
print traceback.format_exc()