def create_memory_from_sections(cls, sections):
o = microx.Operations()
m = microx.Memory(o, 32)
mem_map = None
for section in sections:
start = section['start']
size = section['size']
flags = section['flags']
name = section['name']
content = section['content']
#sys.stdout.write(f"[+] Processing section {name}\n")
page_start = start & ~(0xFFF)
page_end = (start + size + 0xFFF) & ~0xFFF
if "[stack]" == name:
sys.stdout.write(
f"[+] Creating stack region from 0x{page_start:x} to 0x{page_end:x}. Flags: {flags}\n"
)
mem_map = PolicyMemoryMap(o,
page_start,
page_end,
flags,
DefaultMemoryPolicy(),
mapname=name)
m.add_map(mem_map)
else:
for page in range(page_start, page_end, 0x1000):
if not m.can_read(page):
sys.stdout.write(
f"[+] Mapping page from 0x{page:x} to 0x{page+0x1000:x}. Flags: {flags}\n"
)
mem_map = PolicyMemoryMap(o,
page,
page + 0x1000,
flags,
DefaultMemoryPolicy(),
mapname=name)
m.add_map(mem_map)
if content:
assert mem_map is not None
#sys.stdout.write(f"[+] Writing 0x{len(content):x} bytes at 0x{start:x}\n")
mem_map.store_bytes_raw(start, content)
return m
import traceback
if __name__ == "__main__":
# 13 Disassembly:
# 14 0: 55 push ebp
# 15 1: 89 e5 mov ebp,esp
# 16 3: 51 push ecx
# 17 4: 8b 45 08 mov eax,DWORD PTR [ebp+0x8]
# 18 7: 8a 08 mov cl,BYTE PTR [eax]
# 19 9: 88 4d ff mov BYTE PTR [ebp-0x1],cl
# 20 c: 89 ec mov esp,ebp
# 21 e: 5d pop ebp
# 22 f: c2 00 00 ret 0x0
o = microx.Operations()
code = microx.ArrayMemoryMap(o,
0x1000,
0x2000,
can_write=False,
can_execute=True)
stack = microx.ArrayMemoryMap(o, 0x80000, 0x82000)
code.store_bytes(
0x1000,
b"\x55\x89\xE5\x51\x8B\x45\x08\x8A\x08\x88\x4D\xFF\x89\xEC\x5D\xC2\x00\x00"
)
m = microx.Memory(o, 32)
m.add_map(code)