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tests: fix

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Dobin
2024-06-02 13:17:57 +01:00
parent 13320374d9
commit 46293bb60c
5 changed files with 47 additions and 44 deletions
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tests/test_asmparser.py
+37 -20
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@@ -3,11 +3,12 @@ import unittest
import logging
from model.defs import *
from model.carrier import Carrier
from model.carrier import Carrier, DataReuseEntry
from observer import observer
from helper import *
from phases.asmtextparser import parse_asm_text_file
from phases.masmshc import masm_shc
from model.settings import Settings
def print_lines(data):
@@ -25,27 +26,36 @@ class AsmTest(unittest.TestCase):
asm_in: FilePath = "tests/data/peb_walk_pre_fixup.asm"
asm_text = file_readall_text(asm_in)
carrier = Carrier("fake.exe")
asm_text_lines = parse_asm_text_file(carrier, asm_text)
carrier.add_datareuse_fixup(DataReuseEntry("supermega_payload"))
settings: Settings = Settings()
settings.payload_location = PayloadLocation.DATA
asm_text_lines = parse_asm_text_file(carrier, asm_text, settings)
# cmp DWORD PTR n$1[rsp], 11223344 ; 00ab4130H
# cmp DWORD PTR n$1[rsp], 272 ; 00ab4130H
#self.assertTrue(", 272" in lines[192-1])
#self.assertTrue("11223344" not in lines[192-1])
# mov r8, QWORD PTR supermega_payload
# lea r8, [shcstart]
self.assertTrue("lea r8, [shcstart]" in asm_text_lines[198-1])
self.assertTrue("supermega_payload" not in asm_text_lines[198-1])
# Original:
# mov r8, QWORD PTR supermega_payload
# New:
# lea r8, [shcstart]
#self.assertTrue("lea r8, [shcstart]" in asm_text_lines[198-1-1])
self.assertTrue("DB 0" in asm_text_lines[198-1-1])
self.assertTrue("supermega_payload" not in asm_text_lines[198-1-1])
# shcstart:
self.assertTrue("shcstart:" in asm_text_lines[213-1])
self.assertTrue("shcstart:" in asm_text_lines[213-1-1])
def test_asm_iat_request(self):
asm_in: FilePath = "tests/data/iat_reuse_pre_fixup.asm"
asm_text = file_readall_text(asm_in)
carrier = Carrier("fake.exe")
asm_text_lines = parse_asm_text_file(carrier, asm_text)
carrier.add_datareuse_fixup(DataReuseEntry("supermega_payload"))
settings: Settings = Settings()
settings.payload_location = PayloadLocation.DATA
asm_text_lines = parse_asm_text_file(carrier, asm_text, settings)
self.assertEqual(len(carrier.iat_requests), 2)
@@ -63,41 +73,48 @@ class AsmTest(unittest.TestCase):
# call QWORD PTR __imp_GetEnvironmentVariableW
# DB 044H, 0aeH, 06cH, 0b6H, 072H, 07cH
self.assertTrue(asm_text_lines[124-1].startswith(" DB "))
self.assertTrue(asm_text_lines[124-1-1].startswith(" DB "))
# call QWORD PTR __imp_VirtualAlloc
# DB 0c7H, 0b6H, 0feH, 0dcH, 0b2H, 0c6H
self.assertTrue(asm_text_lines[148-1].startswith(" DB "))
self.assertTrue(asm_text_lines[148-1-1].startswith(" DB "))
def test_data_reuse_entries(self):
asm_in = "tests/data/data_reuse_pre_fixup.asm"
asm_text = file_readall_text(asm_in)
carrier = Carrier("fake.exe")
asm_text_lines = parse_asm_text_file(carrier, asm_text)
carrier.add_datareuse_fixup(DataReuseEntry("supermega_payload"))
settings: Settings = Settings()
settings.payload_location = PayloadLocation.DATA
asm_text_lines = parse_asm_text_file(carrier, asm_text, settings)
asm_text = masm_shc(asm_text_lines) # optional here
data_reuse_entries = carrier.get_all_reusedata_fixups()
self.assertEqual(2, len(data_reuse_entries))
self.assertEqual(2+1, len(data_reuse_entries))
entry = data_reuse_entries[0]
entry = data_reuse_entries[0+1]
self.assertTrue('$SG72513' in entry.string_ref)
self.assertTrue('rcx' in entry.register)
self.assertEqual(entry.data, b"U\x00S\x00E\x00R\x00P\x00R\x00O\x00F\x00I\x00L\x00E\x00\x00\x00")
self.assertEqual(entry.addr, 0)
self.assertEqual(7, len(entry.randbytes)) # needs to be 7!
entry = data_reuse_entries[1]
entry = data_reuse_entries[1+1]
self.assertTrue('$SG72514' in entry.string_ref)
def test_data_reuse_fixup(self):
asm_in = "tests/data/data_reuse_pre_fixup.asm"
asm_text = file_readall_text(asm_in)
carrier = Carrier("fake.exe")
asm_text_lines = parse_asm_text_file(carrier, asm_text)
self.assertTrue("\tDB " in asm_text_lines[108-1])
self.assertFalse("OFFSET FLAT:$SG" in asm_text_lines[108-1])
carrier = Carrier("fake.exe")
carrier.add_datareuse_fixup(DataReuseEntry("supermega_payload"))
settings: Settings = Settings()
settings.payload_location = PayloadLocation.DATA
asm_text_lines = parse_asm_text_file(carrier, asm_text, settings)
# why -1 -1??
self.assertTrue("\tDB " in asm_text_lines[108-1-1])
self.assertFalse("OFFSET FLAT:$SG" in asm_text_lines[108-1-1])