Example: Move asm's examples to a `asm` directory

1 files changed, 67 insertions, 0 deletions

diff --git a/example/asm/box_x86_64.py b/example/asm/box_x86_64.py
new file mode 100644
index 00000000..44aca56e
--- /dev/null
+++ b/example/asm/box_x86_64.py
@@ -0,0 +1,67 @@
+#! /usr/bin/env python
+from pdb import pm
+
+from elfesteem import pe_init
+
+from miasm2.core import asmbloc
+from miasm2.core.cpu import parse_ast
+from miasm2.arch.x86.arch import mn_x86, base_expr
+from miasm2.core import parse_asm
+import miasm2.expression.expression as m2_expr
+
+e = pe_init.PE(wsize=64)
+s_text = e.SHList.add_section(name="text", addr=0x1000, rawsize=0x1000)
+s_iat = e.SHList.add_section(name="iat", rawsize=0x100)
+new_dll = [({"name": "USER32.dll",
+             "firstthunk": s_iat.addr}, ["MessageBoxA"])]
+e.DirImport.add_dlldesc(new_dll)
+s_myimp = e.SHList.add_section(name="myimp", rawsize=len(e.DirImport))
+e.DirImport.set_rva(s_myimp.addr)
+
+reg_and_id = dict(mn_x86.regs.all_regs_ids_byname)
+
+
+def my_ast_int2expr(a):
+    return m2_expr.ExprInt64(a)
+
+
+def my_ast_id2expr(t):
+    return reg_and_id.get(t, m2_expr.ExprId(t, size=64))
+
+my_var_parser = parse_ast(my_ast_id2expr, my_ast_int2expr)
+base_expr.setParseAction(my_var_parser)
+
+blocs, symbol_pool = parse_asm.parse_txt(mn_x86, 64, '''
+main:
+    MOV R9, 0x0
+    MOV R8, title
+    MOV RDX, msg
+    MOV RCX, 0x0
+    MOV RAX, QWORD PTR [ MessageBoxA ]
+    CALL RAX
+    RET
+
+title:
+.string "Hello!"
+msg:
+.string "World!"
+''')
+
+# fix shellcode addr
+symbol_pool.set_offset(symbol_pool.getby_name("main"), e.rva2virt(s_text.addr))
+symbol_pool.set_offset(symbol_pool.getby_name_create("MessageBoxA"),
+                       e.DirImport.get_funcvirt('MessageBoxA'))
+e.Opthdr.AddressOfEntryPoint = s_text.addr
+
+for b in blocs[0]:
+    print b
+
+resolved_b, patches = asmbloc.asm_resolve_final(
+    mn_x86, blocs[0], symbol_pool,
+    max_offset=0xFFFFFFFFFFFFFFFF)
+print patches
+
+for offset, raw in patches.items():
+    e.virt[offset] = raw
+
+open('box_x86_64.bin', 'wb').write(str(e))