1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
#!/usr/bin/python3
# -*- coding: utf-8 -*-
# S'assure du bon fonctionnement des blocs basiques
from chrysacase import ChrysalideTestCase
from pychrysalide.analysis.contents import FileContent
from pychrysalide.analysis import BinRoutine, LoadedBinary
from pychrysalide.arch import ArchInstruction
from pychrysalide.arch import vmpa
from pychrysalide.format.elf import ElfFormat
from pychrysalide.format import FlatFormat
from pychrysalide.glibext import BinPortion
import os
import sys
class TestBasicBlocks(ChrysalideTestCase):
"""TestCase for basic blocks."""
@classmethod
def setUpClass(cls):
super(TestBasicBlocks, cls).setUpClass()
cls.log('Compile binary "hello" if needed...')
fullname = sys.modules[cls.__module__].__file__
dirpath = os.path.dirname(fullname)
os.system('make -C %s hello > /dev/null 2>&1' % dirpath)
os.system('make -C %s irreducible > /dev/null 2>&1' % dirpath)
os.system('make -C %s selfloop > /dev/null 2>&1' % dirpath)
os.system('make -C %s evalcommand > /dev/null 2>&1' % dirpath)
@classmethod
def tearDownClass(cls):
super(TestBasicBlocks, cls).tearDownClass()
cls.log('Delete built binaries...')
fullname = sys.modules[cls.__module__].__file__
dirpath = os.path.dirname(fullname)
os.system('make -C %s clean > /dev/null 2>&1' % dirpath)
def testBlockList(self):
"""Check basic tests for basic block list."""
fullname = sys.modules[self.__class__.__module__].__file__
filename = os.path.basename(fullname)
baselen = len(fullname) - len(filename)
cnt = FileContent(fullname[:baselen] + 'hello')
self.assertIsNotNone(cnt)
fmt = ElfFormat(cnt)
self.assertIsNotNone(fmt)
binary = LoadedBinary(fmt)
self.assertIsNotNone(binary)
binary.analyze_and_wait()
sym = fmt.find_symbol_by_label('main')
self.assertIsNotNone(sym)
found = sym.basic_blocks.find_by_addr(sym.range.addr)
self.assertIsNotNone(found)
self.assertEqual(found, list(sym.basic_blocks)[0])
self.assertEqual(found.index, 0)
self.assertEqual(found.rank, 0)
def testIrreducible(self):
"""Validate support for irreducible loops."""
fullname = sys.modules[self.__class__.__module__].__file__
filename = os.path.basename(fullname)
baselen = len(fullname) - len(filename)
cnt = FileContent(fullname[:baselen] + 'irreducible')
self.assertIsNotNone(cnt)
fmt = ElfFormat(cnt)
self.assertIsNotNone(fmt)
binary = LoadedBinary(fmt)
self.assertIsNotNone(binary)
binary.analyze_and_wait()
sym = fmt.find_symbol_by_label('argstr')
self.assertIsNotNone(sym)
found = sym.basic_blocks.find_by_addr(sym.range.addr)
self.assertIsNotNone(found)
loop_count = 0
for blk in sym.basic_blocks:
for _, dt in blk.destinations:
if dt == ArchInstruction.ILT_LOOP:
loop_count += 1
self.assertEqual(loop_count, 2)
def testSelfLoopBlock(self):
"""Validate support for self loop blocks."""
fullname = sys.modules[self.__class__.__module__].__file__
filename = os.path.basename(fullname)
baselen = len(fullname) - len(filename)
cnt = FileContent(fullname[:baselen] + 'selfloop')
self.assertIsNotNone(cnt)
fmt = ElfFormat(cnt)
self.assertIsNotNone(fmt)
binary = LoadedBinary(fmt)
self.assertIsNotNone(binary)
binary.analyze_and_wait()
sym = fmt.find_symbol_by_label('string_array_len')
self.assertIsNotNone(sym)
found = sym.basic_blocks.find_by_addr(sym.range.addr)
self.assertIsNotNone(found)
loop_count = 0
for blk in sym.basic_blocks:
for _, dt in blk.destinations:
if dt == ArchInstruction.ILT_LOOP:
loop_count += 1
self.assertEqual(loop_count, 1)
def testComplexLoopBlock(self):
"""Validate support for complex loop blocks."""
fullname = sys.modules[self.__class__.__module__].__file__
filename = os.path.basename(fullname)
baselen = len(fullname) - len(filename)
cnt = FileContent(fullname[:baselen] + 'evalcommand')
self.assertIsNotNone(cnt)
fmt = ElfFormat(cnt)
self.assertIsNotNone(fmt)
binary = LoadedBinary(fmt)
self.assertIsNotNone(binary)
binary.analyze_and_wait()
sym = fmt.find_symbol_by_label('evalcommand')
self.assertIsNotNone(sym)
found = sym.basic_blocks.find_by_addr(sym.range.addr)
self.assertIsNotNone(found)
loop_count = 0
for blk in sym.basic_blocks:
for _, dt in blk.destinations:
if dt == ArchInstruction.ILT_LOOP:
loop_count += 1
self.assertEqual(loop_count, 3)
def testOtherLoops(self):
"""Check situation with some binary codes old troubles."""
# Malwre e8e1bc048ef123a9757a9b27d1bf53c092352a26bdbf9fbdc10109415b5cadac
# Fonction jinit_color_converter de lib/armeabi/libgame.so
fullname = sys.modules[self.__class__.__module__].__file__
filename = os.path.basename(fullname)
baselen = len(fullname) - len(filename)
cnt = FileContent(fullname[:baselen] + 'jinit_color_converter.bin')
self.assertIsNotNone(cnt)
fmt = FlatFormat(cnt)
fmt.set_machine('armv7')
base = vmpa(0, 0x12a524)
p = BinPortion(BinPortion.BPC_CODE, base, cnt.size)
p.rights = BinPortion.PAC_READ | BinPortion.PAC_EXEC
fmt.register_user_portion(p)
fmt.register_code_point(base.virt + 1, True)
sym = BinRoutine()
sym.range = p.range
fmt.add_symbol(sym)
binary = LoadedBinary(fmt)
status = binary.analyze_and_wait()
self.assertTrue(status)
loop_count = 0
for blk in sym.basic_blocks:
for _, dt in blk.destinations:
if dt == ArchInstruction.ILT_LOOP:
loop_count += 1
self.assertEqual(loop_count, 3)
loop_count = 0
for ins in binary.processor.instrs:
for _, dt in ins.destinations:
if dt == ArchInstruction.ILT_LOOP:
loop_count += 1
self.assertEqual(loop_count, 3)
|
