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
|
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "sandbox/src/target_interceptions.h"
#include "sandbox/src/interception_agent.h"
#include "sandbox/src/sandbox_factory.h"
#include "sandbox/src/sandbox_nt_util.h"
#include "sandbox/src/target_services.h"
namespace sandbox {
// Hooks NtMapViewOfSection to detect the load of DLLs. If hot patching is
// required for this dll, this functions patches it.
NTSTATUS WINAPI TargetNtMapViewOfSection(
NtMapViewOfSectionFunction orig_MapViewOfSection, HANDLE section,
HANDLE process, PVOID *base, ULONG_PTR zero_bits, SIZE_T commit_size,
PLARGE_INTEGER offset, PSIZE_T view_size, SECTION_INHERIT inherit,
ULONG allocation_type, ULONG protect) {
NTSTATUS ret = orig_MapViewOfSection(section, process, base, zero_bits,
commit_size, offset, view_size, inherit,
allocation_type, protect);
static int s_load_count = 0;
if (1 == s_load_count) {
SandboxFactory::GetTargetServices()->GetState()->SetKernel32Loaded();
s_load_count = 2;
}
do {
if (!NT_SUCCESS(ret))
break;
if (!InitHeap())
break;
if (!IsSameProcess(process))
break;
if (!IsValidImageSection(section, base, offset, view_size))
break;
UNICODE_STRING* module_name = GetImageNameFromModule(
reinterpret_cast<HMODULE>(*base));
if (!module_name)
break;
UNICODE_STRING* file_name = GetBackingFilePath(*base);
InterceptionAgent* agent = InterceptionAgent::GetInterceptionAgent();
if (agent)
agent->OnDllLoad(file_name, module_name, *base);
if (module_name)
operator delete(module_name, NT_ALLOC);
if (file_name)
operator delete(file_name, NT_ALLOC);
} while (false);
if (!s_load_count)
s_load_count = 1;
return ret;
}
NTSTATUS WINAPI TargetNtUnmapViewOfSection(
NtUnmapViewOfSectionFunction orig_UnmapViewOfSection, HANDLE process,
PVOID base) {
NTSTATUS ret = orig_UnmapViewOfSection(process, base);
if (!NT_SUCCESS(ret))
return ret;
if (!IsSameProcess(process))
return ret;
InterceptionAgent* agent = InterceptionAgent::GetInterceptionAgent();
if (agent)
agent->OnDllUnload(base);
return ret;
}
} // namespace sandbox
|
