├── .gitignore ├── LICENSE ├── README.md └── ShellcodeBakery ├── ShellcodeBakery.sln └── ShellcodeBakery ├── App.config ├── MainForm.Designer.cs ├── MainForm.cs ├── MainForm.resx ├── Program.cs ├── Properties ├── AssemblyInfo.cs ├── Resources.Designer.cs ├── Resources.resx ├── Settings.Designer.cs └── Settings.settings ├── ShellcodeBakery.csproj └── packages.config /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.rsuser 8 | *.suo 9 | *.user 10 | *.userosscache 11 | *.sln.docstates 12 | 13 | # User-specific files (MonoDevelop/Xamarin Studio) 14 | *.userprefs 15 | 16 | # Mono auto generated files 17 | mono_crash.* 18 | 19 | # Build results 20 | [Dd]ebug/ 21 | [Dd]ebugPublic/ 22 | [Rr]elease/ 23 | [Rr]eleases/ 24 | x64/ 25 | x86/ 26 | [Aa][Rr][Mm]/ 27 | [Aa][Rr][Mm]64/ 28 | bld/ 29 | [Bb]in/ 30 | [Oo]bj/ 31 | [Ll]og/ 32 | [Ll]ogs/ 33 | 34 | # Visual Studio 2015/2017 cache/options directory 35 | .vs/ 36 | # Uncomment if you have tasks that create the project's static files in wwwroot 37 | #wwwroot/ 38 | 39 | # Visual Studio 2017 auto generated files 40 | Generated\ Files/ 41 | 42 | # MSTest test Results 43 | [Tt]est[Rr]esult*/ 44 | [Bb]uild[Ll]og.* 45 | 46 | # NUnit 47 | *.VisualState.xml 48 | TestResult.xml 49 | nunit-*.xml 50 | 51 | # Build Results of an ATL Project 52 | [Dd]ebugPS/ 53 | [Rr]eleasePS/ 54 | dlldata.c 55 | 56 | # Benchmark Results 57 | BenchmarkDotNet.Artifacts/ 58 | 59 | # .NET Core 60 | project.lock.json 61 | project.fragment.lock.json 62 | artifacts/ 63 | 64 | # StyleCop 65 | StyleCopReport.xml 66 | 67 | # Files built by Visual Studio 68 | *_i.c 69 | *_p.c 70 | *_h.h 71 | *.ilk 72 | *.meta 73 | *.obj 74 | *.iobj 75 | *.pch 76 | *.pdb 77 | *.ipdb 78 | *.pgc 79 | *.pgd 80 | *.rsp 81 | *.sbr 82 | *.tlb 83 | *.tli 84 | *.tlh 85 | *.tmp 86 | *.tmp_proj 87 | *_wpftmp.csproj 88 | *.log 89 | *.vspscc 90 | *.vssscc 91 | .builds 92 | *.pidb 93 | *.svclog 94 | *.scc 95 | 96 | # Chutzpah Test files 97 | _Chutzpah* 98 | 99 | # Visual C++ cache files 100 | ipch/ 101 | *.aps 102 | *.ncb 103 | *.opendb 104 | *.opensdf 105 | *.sdf 106 | *.cachefile 107 | *.VC.db 108 | *.VC.VC.opendb 109 | 110 | # Visual Studio profiler 111 | *.psess 112 | *.vsp 113 | *.vspx 114 | *.sap 115 | 116 | # Visual Studio Trace Files 117 | *.e2e 118 | 119 | # TFS 2012 Local Workspace 120 | $tf/ 121 | 122 | # Guidance Automation Toolkit 123 | *.gpState 124 | 125 | # ReSharper is a .NET coding add-in 126 | _ReSharper*/ 127 | *.[Rr]e[Ss]harper 128 | *.DotSettings.user 129 | 130 | # TeamCity is a build add-in 131 | _TeamCity* 132 | 133 | # DotCover is a Code Coverage Tool 134 | *.dotCover 135 | 136 | # AxoCover is a Code Coverage Tool 137 | .axoCover/* 138 | !.axoCover/settings.json 139 | 140 | # Visual Studio code coverage results 141 | *.coverage 142 | *.coveragexml 143 | 144 | # NCrunch 145 | _NCrunch_* 146 | .*crunch*.local.xml 147 | nCrunchTemp_* 148 | 149 | # MightyMoose 150 | *.mm.* 151 | AutoTest.Net/ 152 | 153 | # Web workbench (sass) 154 | .sass-cache/ 155 | 156 | # Installshield output folder 157 | [Ee]xpress/ 158 | 159 | # DocProject is a documentation generator add-in 160 | DocProject/buildhelp/ 161 | DocProject/Help/*.HxT 162 | DocProject/Help/*.HxC 163 | DocProject/Help/*.hhc 164 | DocProject/Help/*.hhk 165 | DocProject/Help/*.hhp 166 | DocProject/Help/Html2 167 | DocProject/Help/html 168 | 169 | # Click-Once directory 170 | publish/ 171 | 172 | # Publish Web Output 173 | *.[Pp]ublish.xml 174 | *.azurePubxml 175 | # Note: Comment the next line if you want to checkin your web deploy settings, 176 | # but database connection strings (with potential passwords) will be unencrypted 177 | *.pubxml 178 | *.publishproj 179 | 180 | # Microsoft Azure Web App publish settings. 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Backup files are not needed, 246 | # because we have git ;-) 247 | _UpgradeReport_Files/ 248 | Backup*/ 249 | UpgradeLog*.XML 250 | UpgradeLog*.htm 251 | ServiceFabricBackup/ 252 | *.rptproj.bak 253 | 254 | # SQL Server files 255 | *.mdf 256 | *.ldf 257 | *.ndf 258 | 259 | # Business Intelligence projects 260 | *.rdl.data 261 | *.bim.layout 262 | *.bim_*.settings 263 | *.rptproj.rsuser 264 | *- [Bb]ackup.rdl 265 | *- [Bb]ackup ([0-9]).rdl 266 | *- [Bb]ackup ([0-9][0-9]).rdl 267 | 268 | # Microsoft Fakes 269 | FakesAssemblies/ 270 | 271 | # GhostDoc plugin setting file 272 | *.GhostDoc.xml 273 | 274 | # Node.js Tools for Visual Studio 275 | .ntvs_analysis.dat 276 | node_modules/ 277 | 278 | # Visual Studio 6 build log 279 | *.plg 280 | 281 | # Visual Studio 6 workspace options file 282 | *.opt 283 | 284 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.) 285 | *.vbw 286 | 287 | # Visual Studio LightSwitch build output 288 | **/*.HTMLClient/GeneratedArtifacts 289 | **/*.DesktopClient/GeneratedArtifacts 290 | **/*.DesktopClient/ModelManifest.xml 291 | **/*.Server/GeneratedArtifacts 292 | **/*.Server/ModelManifest.xml 293 | _Pvt_Extensions 294 | 295 | # Paket dependency manager 296 | .paket/paket.exe 297 | paket-files/ 298 | 299 | # FAKE - F# Make 300 | .fake/ 301 | 302 | # CodeRush personal settings 303 | .cr/personal 304 | 305 | # Python Tools for Visual Studio (PTVS) 306 | __pycache__/ 307 | *.pyc 308 | 309 | # Cake - Uncomment if you are using it 310 | # tools/** 311 | # !tools/packages.config 312 | 313 | # Tabs Studio 314 | *.tss 315 | 316 | # Telerik's JustMock configuration file 317 | *.jmconfig 318 | 319 | # BizTalk build output 320 | *.btp.cs 321 | *.btm.cs 322 | *.odx.cs 323 | *.xsd.cs 324 | 325 | # OpenCover UI analysis results 326 | OpenCover/ 327 | 328 | # Azure Stream Analytics local run output 329 | ASALocalRun/ 330 | 331 | # MSBuild Binary and Structured Log 332 | *.binlog 333 | 334 | # NVidia Nsight GPU debugger configuration file 335 | *.nvuser 336 | 337 | # MFractors (Xamarin productivity tool) working folder 338 | .mfractor/ 339 | 340 | # Local History for Visual Studio 341 | .localhistory/ 342 | 343 | # BeatPulse healthcheck temp database 344 | healthchecksdb 345 | 346 | # Backup folder for Package Reference Convert tool in Visual Studio 2017 347 | MigrationBackup/ 348 | 349 | # Ionide (cross platform F# VS Code tools) working folder 350 | .ionide/ 351 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2022 VollRagm 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ShellcodeBakery 2 | A simple tool to assemble shellcode ready to be copy-pasted into code 3 | 4 | ## Usage 5 | Enter the ASM code in the left Text box. Make sure to use [FASM Syntax](https://flatassembler.net/docs.php?article=manual). 6 | Select the output settings and hit assemble. 7 | Example output when checking all 3 boxes: 8 | Input: 9 | ```asm 10 | mov rcx, 69420h 11 | sub rsp, 20h 12 | call rax 13 | add rsp, 20h 14 | cmp rax, 2 15 | jne 0x5 16 | ``` 17 | 18 | Output: 19 | ```cpp 20 | char shellcode[] = { 21 | 0x48, 0xC7, 0xC1, 0x20, 0x94, 0x06, 0x00, // 0x0: mov rcx, 69420h 22 | 0x48, 0x83, 0xEC, 0x20, // 0x7: sub rsp, 20h 23 | 0xFF, 0xD0, // 0xB: call rax 24 | 0x48, 0x83, 0xC4, 0x20, // 0xD: add rsp, 20h 25 | 0x48, 0x83, 0xF8, 0x02, // 0x11: cmp rax, 2 26 | 0x75, 0x03 // 0x15: jne 0x5 27 | }; 28 | ``` 29 | 30 | ![](https://i.imgur.com/oYTWXJ7.png) 31 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 16 4 | VisualStudioVersion = 16.0.32126.315 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ShellcodeBakery", "ShellcodeBakery\ShellcodeBakery.csproj", "{732AECA1-5089-4CB6-8A4E-F56B7F66BFBF}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {732AECA1-5089-4CB6-8A4E-F56B7F66BFBF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {732AECA1-5089-4CB6-8A4E-F56B7F66BFBF}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {732AECA1-5089-4CB6-8A4E-F56B7F66BFBF}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {732AECA1-5089-4CB6-8A4E-F56B7F66BFBF}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | GlobalSection(ExtensibilityGlobals) = postSolution 23 | SolutionGuid = {7CAF17E4-D102-41F4-986A-2C2F5B639F60} 24 | EndGlobalSection 25 | EndGlobal 26 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/App.config: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/MainForm.Designer.cs: -------------------------------------------------------------------------------- 1 |  2 | namespace ShellcodeBakery 3 | { 4 | partial class MainForm 5 | { 6 | /// 7 | /// Required designer variable. 8 | /// 9 | private System.ComponentModel.IContainer components = null; 10 | 11 | /// 12 | /// Clean up any resources being used. 13 | /// 14 | /// true if managed resources should be disposed; otherwise, false. 15 | protected override void Dispose(bool disposing) 16 | { 17 | if (disposing && (components != null)) 18 | { 19 | components.Dispose(); 20 | } 21 | base.Dispose(disposing); 22 | } 23 | 24 | #region Windows Form Designer generated code 25 | 26 | /// 27 | /// Required method for Designer support - do not modify 28 | /// the contents of this method with the code editor. 29 | /// 30 | private void InitializeComponent() 31 | { 32 | this.InputTextBox = new System.Windows.Forms.RichTextBox(); 33 | this.OutputTextBox = new System.Windows.Forms.RichTextBox(); 34 | this.Assemble32Btn = new System.Windows.Forms.Button(); 35 | this.BeautifyCb = new System.Windows.Forms.CheckBox(); 36 | this.AnnotateInstructionsCb = new System.Windows.Forms.CheckBox(); 37 | this.AnnotateOffsetsCb = new System.Windows.Forms.CheckBox(); 38 | this.Assemble64Btn = new System.Windows.Forms.Button(); 39 | this.LanguageSelection = new System.Windows.Forms.ComboBox(); 40 | this.label1 = new System.Windows.Forms.Label(); 41 | this.linkLabel1 = new System.Windows.Forms.LinkLabel(); 42 | this.SuspendLayout(); 43 | // 44 | // InputTextBox 45 | // 46 | this.InputTextBox.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(30)))), ((int)(((byte)(30)))), ((int)(((byte)(30))))); 47 | this.InputTextBox.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle; 48 | this.InputTextBox.Font = new System.Drawing.Font("Consolas", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0))); 49 | this.InputTextBox.ForeColor = System.Drawing.Color.White; 50 | this.InputTextBox.Location = new System.Drawing.Point(12, 28); 51 | this.InputTextBox.Name = "InputTextBox"; 52 | this.InputTextBox.Size = new System.Drawing.Size(350, 445); 53 | this.InputTextBox.TabIndex = 0; 54 | this.InputTextBox.Text = ""; 55 | this.InputTextBox.WordWrap = false; 56 | // 57 | // OutputTextBox 58 | // 59 | this.OutputTextBox.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(30)))), ((int)(((byte)(30)))), ((int)(((byte)(30))))); 60 | this.OutputTextBox.Font = new System.Drawing.Font("Consolas", 11.25F); 61 | this.OutputTextBox.ForeColor = System.Drawing.Color.White; 62 | this.OutputTextBox.Location = new System.Drawing.Point(461, 35); 63 | this.OutputTextBox.Name = "OutputTextBox"; 64 | this.OutputTextBox.Size = new System.Drawing.Size(529, 441); 65 | this.OutputTextBox.TabIndex = 0; 66 | this.OutputTextBox.Text = ""; 67 | this.OutputTextBox.WordWrap = false; 68 | // 69 | // Assemble32Btn 70 | // 71 | this.Assemble32Btn.Location = new System.Drawing.Point(368, 224); 72 | this.Assemble32Btn.Name = "Assemble32Btn"; 73 | this.Assemble32Btn.Size = new System.Drawing.Size(88, 23); 74 | this.Assemble32Btn.TabIndex = 1; 75 | this.Assemble32Btn.Text = "Assemble x32"; 76 | this.Assemble32Btn.UseVisualStyleBackColor = true; 77 | this.Assemble32Btn.Click += new System.EventHandler(this.Assemble32Btn_Click); 78 | // 79 | // BeautifyCb 80 | // 81 | this.BeautifyCb.AutoSize = true; 82 | this.BeautifyCb.ForeColor = System.Drawing.Color.White; 83 | this.BeautifyCb.Location = new System.Drawing.Point(602, 12); 84 | this.BeautifyCb.Name = "BeautifyCb"; 85 | this.BeautifyCb.Size = new System.Drawing.Size(64, 17); 86 | this.BeautifyCb.TabIndex = 2; 87 | this.BeautifyCb.Text = "Beautify"; 88 | this.BeautifyCb.UseVisualStyleBackColor = true; 89 | // 90 | // AnnotateInstructionsCb 91 | // 92 | this.AnnotateInstructionsCb.AutoSize = true; 93 | this.AnnotateInstructionsCb.ForeColor = System.Drawing.Color.White; 94 | this.AnnotateInstructionsCb.Location = new System.Drawing.Point(682, 12); 95 | this.AnnotateInstructionsCb.Name = "AnnotateInstructionsCb"; 96 | this.AnnotateInstructionsCb.Size = new System.Drawing.Size(126, 17); 97 | this.AnnotateInstructionsCb.TabIndex = 2; 98 | this.AnnotateInstructionsCb.Text = "Annotate Instructions"; 99 | this.AnnotateInstructionsCb.UseVisualStyleBackColor = true; 100 | // 101 | // AnnotateOffsetsCb 102 | // 103 | this.AnnotateOffsetsCb.AutoSize = true; 104 | this.AnnotateOffsetsCb.ForeColor = System.Drawing.Color.White; 105 | this.AnnotateOffsetsCb.Location = new System.Drawing.Point(807, 12); 106 | this.AnnotateOffsetsCb.Name = "AnnotateOffsetsCb"; 107 | this.AnnotateOffsetsCb.Size = new System.Drawing.Size(105, 17); 108 | this.AnnotateOffsetsCb.TabIndex = 2; 109 | this.AnnotateOffsetsCb.Text = "Annotate Offsets"; 110 | this.AnnotateOffsetsCb.UseVisualStyleBackColor = true; 111 | // 112 | // Assemble64Btn 113 | // 114 | this.Assemble64Btn.Location = new System.Drawing.Point(368, 253); 115 | this.Assemble64Btn.Name = "Assemble64Btn"; 116 | this.Assemble64Btn.Size = new System.Drawing.Size(88, 23); 117 | this.Assemble64Btn.TabIndex = 1; 118 | this.Assemble64Btn.Text = "Assemble x64"; 119 | this.Assemble64Btn.UseVisualStyleBackColor = true; 120 | this.Assemble64Btn.Click += new System.EventHandler(this.Assemble64Btn_Click); 121 | // 122 | // LanguageSelection 123 | // 124 | this.LanguageSelection.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList; 125 | this.LanguageSelection.FormattingEnabled = true; 126 | this.LanguageSelection.Items.AddRange(new object[] { 127 | "C/C++", 128 | "C#"}); 129 | this.LanguageSelection.Location = new System.Drawing.Point(461, 10); 130 | this.LanguageSelection.Name = "LanguageSelection"; 131 | this.LanguageSelection.Size = new System.Drawing.Size(121, 21); 132 | this.LanguageSelection.TabIndex = 3; 133 | // 134 | // label1 135 | // 136 | this.label1.AutoSize = true; 137 | this.label1.ForeColor = System.Drawing.Color.White; 138 | this.label1.Location = new System.Drawing.Point(12, 12); 139 | this.label1.Name = "label1"; 140 | this.label1.Size = new System.Drawing.Size(33, 13); 141 | this.label1.TabIndex = 4; 142 | this.label1.Text = "ASM:"; 143 | // 144 | // linkLabel1 145 | // 146 | this.linkLabel1.AutoSize = true; 147 | this.linkLabel1.LinkColor = System.Drawing.Color.FromArgb(((int)(((byte)(12)))), ((int)(((byte)(113)))), ((int)(((byte)(180))))); 148 | this.linkLabel1.Location = new System.Drawing.Point(291, 10); 149 | this.linkLabel1.Name = "linkLabel1"; 150 | this.linkLabel1.Size = new System.Drawing.Size(71, 13); 151 | this.linkLabel1.TabIndex = 5; 152 | this.linkLabel1.TabStop = true; 153 | this.linkLabel1.Text = "FASM Syntax"; 154 | // 155 | // MainForm 156 | // 157 | this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); 158 | this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 159 | this.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(45)))), ((int)(((byte)(45)))), ((int)(((byte)(48))))); 160 | this.ClientSize = new System.Drawing.Size(1002, 496); 161 | this.Controls.Add(this.linkLabel1); 162 | this.Controls.Add(this.label1); 163 | this.Controls.Add(this.LanguageSelection); 164 | this.Controls.Add(this.AnnotateOffsetsCb); 165 | this.Controls.Add(this.AnnotateInstructionsCb); 166 | this.Controls.Add(this.BeautifyCb); 167 | this.Controls.Add(this.Assemble64Btn); 168 | this.Controls.Add(this.Assemble32Btn); 169 | this.Controls.Add(this.OutputTextBox); 170 | this.Controls.Add(this.InputTextBox); 171 | this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow; 172 | this.Name = "MainForm"; 173 | this.Text = "ShellcodeBakery"; 174 | this.ResumeLayout(false); 175 | this.PerformLayout(); 176 | 177 | } 178 | 179 | #endregion 180 | 181 | private System.Windows.Forms.RichTextBox InputTextBox; 182 | private System.Windows.Forms.RichTextBox OutputTextBox; 183 | private System.Windows.Forms.Button Assemble32Btn; 184 | private System.Windows.Forms.CheckBox BeautifyCb; 185 | private System.Windows.Forms.CheckBox AnnotateInstructionsCb; 186 | private System.Windows.Forms.CheckBox AnnotateOffsetsCb; 187 | private System.Windows.Forms.Button Assemble64Btn; 188 | private System.Windows.Forms.ComboBox LanguageSelection; 189 | private System.Windows.Forms.Label label1; 190 | private System.Windows.Forms.LinkLabel linkLabel1; 191 | } 192 | } 193 | 194 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/MainForm.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Windows.Forms; 3 | using Binarysharp.Assemblers.Fasm; 4 | using System.Linq; 5 | 6 | namespace ShellcodeBakery 7 | { 8 | public partial class MainForm : Form 9 | { 10 | public MainForm() 11 | { 12 | InitializeComponent(); 13 | LanguageSelection.SelectedIndex = 0; 14 | } 15 | 16 | private void AssembleInternal(string bitness) 17 | { 18 | OutputTextBox.Clear(); 19 | 20 | int lineCount = 0; 21 | int currentOffset = 0; 22 | 23 | string output = LanguageSelection.SelectedIndex == 0 ? CSyntax : CSharpSyntax; 24 | if (BeautifyCb.Checked) output += "\n"; 25 | 26 | foreach(var line in InputTextBox.Lines) 27 | { 28 | try 29 | { 30 | if (string.IsNullOrWhiteSpace(line)) 31 | { 32 | ++lineCount; 33 | continue; 34 | } 35 | 36 | var instruction = AssembleSingleInstruction(line, bitness, lineCount == InputTextBox.Lines.Length - 1, out int length); 37 | output += (BeautifyCb.Checked ? "\t": "") + instruction; 38 | 39 | if (BeautifyCb.Checked) 40 | { 41 | if (AnnotateOffsetsCb.Checked) 42 | { 43 | output += GenerateTabs(length) + $" // 0x{currentOffset:X}"; 44 | } 45 | 46 | if (AnnotateInstructionsCb.Checked) 47 | { 48 | output += $"{(AnnotateOffsetsCb.Checked ? ": " : GenerateTabs(length) + " // ")}" + line; 49 | } 50 | output += "\n"; 51 | } 52 | 53 | currentOffset += length; 54 | ++lineCount; 55 | } 56 | catch (FasmAssemblerException ex) 57 | { 58 | MessageBox.Show($"Error: {ex.ErrorCode}\nLine: {lineCount}"); 59 | string[] lines = InputTextBox.Lines; 60 | 61 | if (lines[lineCount].Contains(" ; <-- Error:")) 62 | lines[lineCount] = lines[lineCount].Remove(lines[lineCount].IndexOf(" ; <-- Error:")); 63 | 64 | lines[lineCount] = lines[lineCount] + " ; <-- Error: " + ex.ErrorCode; 65 | InputTextBox.Lines = lines; 66 | return; 67 | } 68 | } 69 | 70 | output += BeautifyCb.Checked ? "};" : " };"; 71 | 72 | OutputTextBox.Text = output; 73 | } 74 | 75 | private string GenerateTabs(int instructionLength) 76 | { 77 | int[] lengths = { 8, 6, 5, 4, 3, 2, 1, 1 }; 78 | string output = ""; 79 | for (int i = 0; i < lengths[instructionLength - 1]; i++) 80 | output += "\t"; 81 | 82 | return output; 83 | } 84 | 85 | private string AssembleSingleInstruction(string instruction, string bitness, bool final, out int length) 86 | { 87 | string[] mnemonics = { bitness, instruction }; 88 | var asm = FasmNet.Assemble(mnemonics); 89 | string output = ""; 90 | 91 | foreach(var b in asm) 92 | { 93 | output += "0x" + b.ToString("X2") + ", "; 94 | } 95 | if (final) output = output.Remove(output.Length - 2); 96 | length = asm.Length; 97 | return output; 98 | } 99 | 100 | private void Assemble32Btn_Click(object sender, EventArgs e) 101 | { 102 | AssembleInternal("use32"); 103 | } 104 | 105 | private void Assemble64Btn_Click(object sender, EventArgs e) 106 | { 107 | AssembleInternal("use64"); 108 | } 109 | 110 | string CSharpSyntax = "byte[] shellcode = { "; 111 | string CSyntax = "char shellcode[] = { "; 112 | } 113 | } 114 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/MainForm.resx: -------------------------------------------------------------------------------- 1 |  2 | 3 | 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 | text/microsoft-resx 110 | 111 | 112 | 2.0 113 | 114 | 115 | System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 116 | 117 | 118 | System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 119 | 120 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Threading.Tasks; 5 | using System.Windows.Forms; 6 | 7 | namespace ShellcodeBakery 8 | { 9 | static class Program 10 | { 11 | /// 12 | /// The main entry point for the application. 13 | /// 14 | [STAThread] 15 | static void Main() 16 | { 17 | Application.EnableVisualStyles(); 18 | Application.SetCompatibleTextRenderingDefault(false); 19 | Application.Run(new MainForm()); 20 | } 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("ShellcodeBakery")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("ShellcodeBakery")] 13 | [assembly: AssemblyCopyright("Copyright © 2022")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("732aeca1-5089-4cb6-8a4e-f56b7f66bfbf")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/Properties/Resources.Designer.cs: -------------------------------------------------------------------------------- 1 | //------------------------------------------------------------------------------ 2 | // 3 | // This code was generated by a tool. 4 | // Runtime Version:4.0.30319.42000 5 | // 6 | // Changes to this file may cause incorrect behavior and will be lost if 7 | // the code is regenerated. 8 | // 9 | //------------------------------------------------------------------------------ 10 | 11 | 12 | namespace ShellcodeBakery.Properties 13 | { 14 | /// 15 | /// A strongly-typed resource class, for looking up localized strings, etc. 16 | /// 17 | // This class was auto-generated by the StronglyTypedResourceBuilder 18 | // class via a tool like ResGen or Visual Studio. 19 | // To add or remove a member, edit your .ResX file then rerun ResGen 20 | // with the /str option, or rebuild your VS project. 21 | [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")] 22 | [global::System.Diagnostics.DebuggerNonUserCodeAttribute()] 23 | [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] 24 | internal class Resources 25 | { 26 | 27 | private static global::System.Resources.ResourceManager resourceMan; 28 | 29 | private static global::System.Globalization.CultureInfo resourceCulture; 30 | 31 | [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")] 32 | internal Resources() 33 | { 34 | } 35 | 36 | /// 37 | /// Returns the cached ResourceManager instance used by this class. 38 | /// 39 | [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] 40 | internal static global::System.Resources.ResourceManager ResourceManager 41 | { 42 | get 43 | { 44 | if ((resourceMan == null)) 45 | { 46 | global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("ShellcodeBakery.Properties.Resources", typeof(Resources).Assembly); 47 | resourceMan = temp; 48 | } 49 | return resourceMan; 50 | } 51 | } 52 | 53 | /// 54 | /// Overrides the current thread's CurrentUICulture property for all 55 | /// resource lookups using this strongly typed resource class. 56 | /// 57 | [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)] 58 | internal static global::System.Globalization.CultureInfo Culture 59 | { 60 | get 61 | { 62 | return resourceCulture; 63 | } 64 | set 65 | { 66 | resourceCulture = value; 67 | } 68 | } 69 | } 70 | } 71 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/Properties/Resources.resx: -------------------------------------------------------------------------------- 1 |  2 | 3 | 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 | text/microsoft-resx 107 | 108 | 109 | 2.0 110 | 111 | 112 | System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 113 | 114 | 115 | System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 116 | 117 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/Properties/Settings.Designer.cs: -------------------------------------------------------------------------------- 1 | //------------------------------------------------------------------------------ 2 | // 3 | // This code was generated by a tool. 4 | // Runtime Version:4.0.30319.42000 5 | // 6 | // Changes to this file may cause incorrect behavior and will be lost if 7 | // the code is regenerated. 8 | // 9 | //------------------------------------------------------------------------------ 10 | 11 | 12 | namespace ShellcodeBakery.Properties 13 | { 14 | [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()] 15 | [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")] 16 | internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase 17 | { 18 | 19 | private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings()))); 20 | 21 | public static Settings Default 22 | { 23 | get 24 | { 25 | return defaultInstance; 26 | } 27 | } 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/Properties/Settings.settings: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/ShellcodeBakery.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {732AECA1-5089-4CB6-8A4E-F56B7F66BFBF} 8 | WinExe 9 | ShellcodeBakery 10 | ShellcodeBakery 11 | v4.8 12 | 512 13 | true 14 | true 15 | 16 | 17 | AnyCPU 18 | true 19 | full 20 | false 21 | bin\Debug\ 22 | DEBUG;TRACE 23 | prompt 24 | 4 25 | 26 | 27 | x86 28 | none 29 | true 30 | bin\Release\ 31 | TRACE 32 | prompt 33 | 4 34 | false 35 | 36 | 37 | 38 | ..\packages\Fasm.NET.1.70.03.2\lib\Fasm.NET.dll 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | Form 55 | 56 | 57 | MainForm.cs 58 | 59 | 60 | 61 | 62 | MainForm.cs 63 | 64 | 65 | ResXFileCodeGenerator 66 | Resources.Designer.cs 67 | Designer 68 | 69 | 70 | True 71 | Resources.resx 72 | 73 | 74 | 75 | SettingsSingleFileGenerator 76 | Settings.Designer.cs 77 | 78 | 79 | True 80 | Settings.settings 81 | True 82 | 83 | 84 | 85 | 86 | 87 | 88 | -------------------------------------------------------------------------------- /ShellcodeBakery/ShellcodeBakery/packages.config: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | --------------------------------------------------------------------------------