Create LICENSE

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.toml

@@ -6,7 +6,10 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-tokio = { version = "1.0", features = ["full"] }
+anyhow = "1.0.72"
-thrussh = "0.33.5"
+clap = { version = "4.3.19", features = ["derive"] }
-thrussh-keys = "0.21"
+rand = "0.8.5"
-futures = "0.3.28"
+regex = "1.11.0"
+tokio = { version = "1", features = ["full"] }
+tracing = "0.1.37"
+tracing-subscriber = "0.3.17"

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -0,0 +1,108 @@
+# Ghostport
+
+Ghostport is a sophisticated port spoofing tool designed to confuse and mislead port scanners. It's a Rust implementation inspired by the concept of portspoof, offering enhanced performance and flexibility.
+
+## Features
+
+- **Dynamic Port Emulation**: Responds to port scans with a variety of convincing service signatures.
+- **Customizable Signatures**: Easily add or modify service signatures through a simple text file.
+- **High Performance**: Built with Rust and Tokio for efficient, asynchronous handling of connections.
+- **Flexible Logging**: Offers debug, verbose, and quiet logging modes for different use cases.
+- **Easy to Use**: Simple command-line interface with sensible defaults.
+
+## Installation
+
+```bash
+git clone https://github.com/yourusername/ghostport.git
+cd ghostport
+cargo build --release
+```
+
+## Usage
+
+Basic usage:
+
+```bash
+./target/release/ghostport -s signatures.txt
+```
+
+or you can run with cargo 
+```bash
+git clone https://git.suicidal.network/sad/ghostport.git
+cd ghostport 
+cargo run -- -s signatures.txt
+```
+
+This will start Ghostport on the default address (127.0.0.1:8888) using the signatures from `signatures.txt`.
+
+### Command-line Options
+
+- `-s, --signatures <FILE>`: Path to the signatures file (default: "signatures")
+- `-l, --listen <ADDRESS>`: Address to listen on (default: "127.0.0.1:8888")
+- `-d, --debug`: Enable debug logging
+- `-v, --verbose`: Enable verbose logging
+- `-q, --quiet`: Enable quiet logging
+- `-V, --version`: Print version information
+
+### Examples
+
+Run with custom address and verbose logging:
+
+```bash
+./target/release/ghostport -s signatures.txt -l 0.0.0.0:8888 -v
+```
+
+Run with debug logging:
+
+```bash
+./target/release/ghostport -s signatures.txt -d
+```
+
+## Signature File Format
+
+The signature file should contain one signature per line. Signatures can be raw text or regex patterns. For example:
+
+```
+HTTP/1.1 200 OK\r\nServer: Apache/2.4.41 (Unix)\r\n
+SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.1
+220 (vsFTPd 3.0.3)
+```
+for more examples, see the [signatures](signatures.txt) file.
+
+## Routing Traffic to Ghostport
+
+To redirect all incoming TCP traffic to Ghostport, you can use iptables. This will allow Ghostport to respond to connections on any port, effectively spoofing all services:
+
+```bash
+
+INTERFACE="eth0" # change to your network interface
+
+iptables -t nat -A PREROUTING -i $INTERFACE -p tcp -m tcp -m multiport --dports 1:65535 -j REDIRECT --to-ports 8888
+
+```
+
+This command will redirect all TCP traffic on ports 1-65535 to port 8888, where Ghostport is listening. Make sure to replace "eth0" with your actual network interface.
+
+> [!NOTE]
+> This requires root privileges and will affect all incoming TCP connections on the specified interface. Use with caution, especially on production systems.
+
+To remove this rule:
+
+```bash
+
+iptables -t nat -D PREROUTING -i $INTERFACE -p tcp -m tcp -m multiport --dports 1:65535 -j REDIRECT --to-ports 8888
+
+```
+
+## Contributing
+
+Contributions are welcome! Please feel free to submit a Pull Request.
+
+## License
+
+This project is licensed under the GNU License - see the [LICENSE](LICENSE) file for details.
+
+## Acknowledgments
+
+- Inspired by the original [portspoof project](https://github.com/drk1wi/portspoof)
+- Built with Rust and Tokio

src/cli.rs

@@ -0,0 +1,37 @@
+use clap::Parser;
+
+#[derive(Parser, Debug, Clone)]
+#[command(author = "perp and sad")]
+
+// CLI flags/arguments
+pub struct Cli {
+    #[arg(
+        short = 's',
+        long = "signatures",
+        value_name = "FILE",
+        help = "Path to the signatures",
+        default_value = "signatures"
+    )]
+    pub signatures: String,
+
+    #[arg(
+        short = 'l',
+        long = "listen",
+        value_name = "ADDRESS",
+        help = "Address to listen on",
+        default_value = "127.0.0.1:8888"
+    )]
+    pub listen: String,
+
+    #[arg(short = 'd', long = "debug", help = "Enable debug logging")]
+    pub debug: bool,
+
+    #[arg(short = 'v', long = "verbose", help = "Enable verbose logging")]
+    pub verbose: bool,
+
+    #[arg(short = 'q', long = "quiet", help = "Enable quiet logging")]
+    pub quiet: bool,
+
+    #[arg(short = 'V', long = "version", help = "Print version information")]
+    pub version: bool,
+}

src/handler.rs

@@ -0,0 +1,166 @@
+use std::fs::File;
+use std::io::{BufRead, BufReader};
+use rand::Rng;
+use anyhow::{Context, Result, anyhow};
+
+#[derive(Debug, Clone)]
+pub enum Payload {
+    Raw(Vec<u8>),
+    Regex(String),
+}
+
+#[derive(Debug, Clone)]
+pub struct Signature {
+    pub payload: Payload,
+}
+
+pub fn parse_signatures(file_path: &str) -> Result<Vec<Signature>> {
+    let file = File::open(file_path).context("Failed to open signatures file")?;
+    let reader = BufReader::new(file);
+    let mut signatures = Vec::new();
+
+    for (index, line) in reader.lines().enumerate() {
+        let line = line.context("Failed to read line from signatures file")?;
+        if line.trim().is_empty() {
+            continue;
+        }
+
+        let payload = if line.contains('(') && line.contains(')') {
+            Payload::Regex(line)
+        } else {
+            Payload::Raw(unescape_string(&line)
+                .with_context(|| format!("Invalid payload on line {}", index + 1))?)
+        };
+
+        signatures.push(Signature { payload });
+    }
+
+    if signatures.is_empty() {
+        return Err(anyhow!("No valid signatures found in the file"));
+    }
+
+    Ok(signatures)
+}
+
+fn unescape_string(s: &str) -> Result<Vec<u8>> {
+    let mut result = Vec::new();
+    let mut chars = s.chars().peekable();
+
+    while let Some(c) = chars.next() {
+        if c == '\\' {
+            match chars.next() {
+                Some('x') => {
+                    let hex: String = chars.by_ref().take(2).collect();
+                    if hex.len() == 2 {
+                        if let Ok(byte) = u8::from_str_radix(&hex, 16) {
+                            result.push(byte);
+                        } else {
+                            result.extend(b"\\x");
+                            result.extend(hex.bytes());
+                        }
+                    } else {
+                        result.extend(b"\\x");
+                        result.extend(hex.bytes());
+                    }
+                },
+                Some('0') => result.push(0),
+                Some('n') => result.push(b'\n'),
+                Some('r') => result.push(b'\r'),
+                Some('t') => result.push(b'\t'),
+                Some(c) => result.push(c as u8),
+                None => result.push(b'\\'),
+            }
+        } else {
+            result.push(c as u8);
+        }
+    }
+
+    Ok(result)
+}
+
+pub fn generate_payload(signature: &Signature) -> Vec<u8> {
+    match &signature.payload {
+        Payload::Raw(v) => v.clone(),
+        Payload::Regex(r) => generate_regex_match(r),
+    }
+}
+
+fn generate_regex_match(regex_str: &str) -> Vec<u8> {
+    let mut result = String::new();
+    let mut chars = regex_str.chars().peekable();
+
+    while let Some(c) = chars.next() {
+        match c {
+            '\\' => {
+                if let Some(next_char) = chars.next() {
+                    match next_char {
+                        'd' => result.push(rand::thread_rng().gen_range(b'0'..=b'9') as char),
+                        'w' => result.push(rand::thread_rng().gen_range(b'a'..=b'z') as char),
+                        'x' => {
+                            let hex = chars.next().and_then(|c1| chars.next().map(|c2| format!("{}{}", c1, c2)))
+                                .unwrap_or_else(|| "00".to_string());
+                            if let Ok(byte) = u8::from_str_radix(&hex, 16) {
+                                result.push(byte as char);
+                            }
+                        }
+                        _ => result.push(next_char),
+                    }
+                }
+            },
+            '[' => {
+                let mut class = String::new();
+                for class_char in chars.by_ref() {  
+                    if class_char == ']' { break; }
+                    class.push(class_char);
+                }
+                if !class.is_empty() {
+                    result.push(class.chars().nth(rand::thread_rng().gen_range(0..class.len())).unwrap());
+                }
+            },
+            '(' => {
+                let mut depth = 1;
+                for group_char in chars.by_ref() { 
+                    if group_char == '(' { depth += 1; }
+                    if group_char == ')' { depth -= 1; }
+                    if depth == 0 { break; }
+                }
+            },
+            '+' | '*' => {
+                if let Some(last_char) = result.chars().last() {
+                    let repeat = rand::thread_rng().gen_range(0..5);
+                    for _ in 0..repeat {
+                        result.push(last_char);
+                    }
+                }
+            },
+            '.' => result.push(rand::thread_rng().gen_range(b'!'..=b'~') as char),
+            _ => result.push(c),
+        }
+    }
+
+    result.into_bytes()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_generate_regex_match() {
+        let regex_str = r"Hello [\w]+, your lucky number is \d+";
+        let result = generate_regex_match(regex_str);
+        let result_str = String::from_utf8_lossy(&result);
+        assert!(result_str.starts_with("Hello "));
+        assert!(result_str.contains(", your lucky number is "));
+    }
+
+    #[test]
+    fn test_unescape_string() {
+        assert_eq!(unescape_string(r"Hello\nWorld").unwrap(), b"Hello\nWorld");
+        assert_eq!(unescape_string(r"Test\x41\x42\x43").unwrap(), b"TestABC");
+        assert_eq!(unescape_string(r"\0\r\n\t").unwrap(), b"\0\r\n\t");
+        assert_eq!(unescape_string(r"Incomplete\").unwrap(), b"Incomplete\\");
+        assert_eq!(unescape_string(r"Incomplete\x").unwrap(), b"Incomplete\\x");
+        assert_eq!(unescape_string(r"Incomplete\x4").unwrap(), b"Incomplete\\x4");
+    }
+}

src/main.rs

@@ -1,20 +1,91 @@
-use std::net::{TcpListener, TcpStream};
+use clap::Parser;
-use std::io::{Read, Write};
+use rand::seq::SliceRandom;
+use tokio::net::TcpListener;
+use tokio::io::AsyncWriteExt;
+use tracing::{debug, error, info, Level};
+use tracing_subscriber::FmtSubscriber;
 
-fn main() {
+mod cli;
-    let listener = TcpListener::bind("0.0.0.0:22").unwrap();
+mod handler;
-    for stream in listener.incoming() {
+
-        match stream {
+use cli::Cli;
-            Ok(mut stream) => {
+use handler::{generate_payload, parse_signatures};
-                let _ = stream.write_all(b"SSH-2.0-OpenSSH_7.2p2 Ubuntu-uwuntu\r\n");
+
-                let _ = stream.flush();
+#[tokio::main]
-                let mut buffer = [0; 1024];
+async fn main() -> anyhow::Result<()> {
-                let _ = stream.read(&mut buffer);
+    // Parse CLI
-                // log the connection and any commands sent by the attacker
+    let cli = Cli::parse();
-            },
+
+    // Setup logger
+    let subscriber = FmtSubscriber::builder()
+        .with_max_level(if cli.debug {
+            Level::DEBUG
+        } else if cli.verbose {
+            Level::INFO
+        } else {
+            Level::ERROR
+        })
+        .without_time()
+        .finish();
+
+    tracing::subscriber::set_global_default(subscriber)
+        .expect("setting default subscriber failed");
+
+    debug!("Parsed CLI flags");
+
+    // Read signatures file
+    let signatures = match parse_signatures(&cli.signatures) {
+        Ok(sigs) => sigs,
         Err(e) => {
-                eprintln!("Error accepting connection: {}", e);
+            error!("Failed to parse signatures file: {}", e);
+            return Err(e);
+        }
+    };
+    debug!("Read {} signatures", signatures.len());
+
+    let listener = TcpListener::bind(&cli.listen).await?;
+    info!("Started listener on {}", cli.listen);
+
+    loop {
+        // Accept connection
+        let (mut stream, address) = listener.accept().await?;
+        debug!("Accepted connection from {}", address);
+
+        let sigs = signatures.clone();
+        let cli_clone = cli.clone();
+
+        // Spawn async thread
+        tokio::spawn(async move {
+            // Choose random signature
+            let signature = sigs.choose(&mut rand::thread_rng());
+
+            if let Some(sig) = signature {
+                let payload = generate_payload(sig);
+
+                // Write payload
+                match stream.write_all(&payload).await {
+                    Ok(()) => {
+                        debug!(
+                            "Sent payload to {}: {:?} ({} bytes)",
+                            address,
+                            String::from_utf8_lossy(&payload),
+                            payload.len()
+                        );
+                        if cli_clone.verbose {
+                            info!("Sent payload ({} bytes) to {}", payload.len(), address);
+                        }
+                    }
+                    Err(e) => {
+                        if e.kind() == std::io::ErrorKind::ConnectionReset {
+                            debug!("Connection reset by peer: {}", address);
+                        } else {
+                            error!("Failed to write payload to {}: {}", address, e);
                         }
                     }
                 }
+            } else {
+                debug!("No signature available");
+            }
+        });
+    }
 }