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ShellcodeCompiler/ShellcodeCompiler/DebugUtils.cpp at master · dnangle/ShellcodeCompiler · GitHub
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ShellcodeCompiler
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DebugUtils.cpp
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ShellcodeCompiler
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DebugUtils.cpp
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#
include
"
DebugUtils.h
"
#
if
defined(_WIN32)
#
include
"
SEHUtils.h
"
#
else
#
include
<
cstdlib
>
#
include
<
cstring
>
#
include
<
sys/mman.h
>
#
endif
//
Dump all data - debug purposes
void
DebugUtils::DumpAllData
()
{
cout << endl;
for
(
size_t
i =
0
; i < DeclaredFunctions::AllDeclaredFunctions.
size
(); i++)
{
cout <<
"
Declared:
"
<< DeclaredFunctions::AllDeclaredFunctions[i].
Name
<<
"
@
"
<< DeclaredFunctions::AllDeclaredFunctions[i].
DLL
<< endl;
}
cout << endl;
for
(
size_t
i =
0
; i < FunctionCalls::AllFunctionCalls.
size
(); i++)
{
cout <<
"
Call function:
"
<< FunctionCalls::AllFunctionCalls[i].
Name
<< endl;
for
(
size_t
j =
0
; j < FunctionCalls::AllFunctionCalls[i].
Parameters
.
size
(); j++)
{
cout << ((FunctionCalls::AllFunctionCalls[i].
Parameters
[j].
Type
== FunctionCalls::
PARAMETER_TYPE_STRING
) ?
"
String
"
:
"
Int
"
) <<
"
parameter:
"
;
if
(FunctionCalls::AllFunctionCalls[i].
Parameters
[j].
Type
== FunctionCalls::
PARAMETER_TYPE_STRING
) cout << FunctionCalls::AllFunctionCalls[i].
Parameters
[j].
StringValue
<< endl;
else
cout << FunctionCalls::AllFunctionCalls[i].
Parameters
[j].
IntValue
<< endl;
}
}
cout << endl;
}
//
Test the generated shellcode
void
DebugUtils::TestShellcode
(string p_sFilename)
{
unsigned
char
*p =
NULL
;
size_t
size =
0
;
p =
Utils::ReadBinaryFile
(p_sFilename, &size);
//
Check if successful read
if
(size ==
0
|| p ==
NULL
)
{
cout <<
"
Error: Cannot read shellcode file!
"
<< endl;
return
;
}
#
if
defined(_WIN32)
//
Get space for shellcode
void
*sc =
VirtualAlloc
(
0
, size,
MEM_RESERVE
|
MEM_COMMIT
,
PAGE_EXECUTE_READWRITE
);
if
(sc ==
NULL
)
{
cout <<
"
Error: Cannot allocate space for shellcode!
"
<< endl;
return
;
}
//
Copy shellcode and execute it
try
{
_set_se_translator
(CxxTranslateSehException);
memcpy
(sc, p, size);
(*(
int
(*)()) sc)();
}
catch
(
const
seh_exception& e)
{
cout <<
"
Error when executing shellcode:
"
<< e.
what
() << endl;
}
#
else
//
Test shellcode on Linux
unsigned
char
*sc = (
unsigned
char
*)
valloc
(size);
if
(sc ==
NULL
)
{
cout <<
"
Error: Cannot allocate space for shellcode!
"
<< endl;
return
;
}
memcpy
(sc, p, size);
mprotect
(sc, size,
PROT_READ
|
PROT_EXEC
);
(*(
int
(*)())sc)();
#
endif
}
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