# Gargamel | A Forensic Evidence Acquirer **URL:** \ **Category:** Tools & Scripts\ **Tags:** tools, programming, data-recovery\ **Created:** [March 1, 2021, 11:21am UTC](https://onehack.st/t/gargamel-a-forensic-evidence-acquirer/174025 "2021-03-01T11:21:53Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Astrid](https://onehack.st/user_avatar/onehack.st/astrid/32/174869_2.png) [@Astrid](https://onehack.st/u/Astrid)\ **Post date:** [March 1, 2021, 11:21am UTC](https://onehack.st/t/gargamel-a-forensic-evidence-acquirer/174025/1 "2021-03-01T11:21:53Z")
![image](https://onehack.st/uploads/default/original/3X/8/1/810e71f60eacfa2ae429fad4f73853ba3be7d870.png) A Forensic Evidence Acquirer **Compile** Assuming you have Rust 1.41+ installed. Open terminal in the project directory and to compile a release build type ```auto cargo build --release ``` Debug build can be compiled using ```auto cargo build ``` Compiled executable is located at `target/release/gargamel.exe` or `target/debug/gargamel.exe`, respectively. **Set log level** If you wish to change the logging level: - Open `src/main.rs` - On lines 42 and 43 change `LevelFilter::Info` to (for example) `LevelFilter::Trace` for more detailed logging. - Beware that the `LevelFilter::Trace` will log everything including passwords. **User guide** Right now, this app works only on Windows and the target computer must use Windows or Linux. Make sure to have the following programs in the same directory as Gargamel. - `psexec`, [download](https://docs.microsoft.com/en-us/sysinternals/downloads/psexec) - `paexec`, an open source alternative to PsExec, [download](https://www.poweradmin.com/paexec/) - `winpmem`, an open source memory image tool, [download](https://github.com/Velocidex/c-aff4/releases). - Download the newest executable and rename it to _winpmem.exe_ - `plink` and `pscp`, an open source CLI SSH/SCP clients, [download](https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html) - `SharpRDP`, an open source command executor using RDP, [download](https://github.com/vildibald/SharpRDP/releases/tag/v1.0.0) - `WMImplant`, as open source PowerShell WMI command executor, [download](https://github.com/vildibald/WMImplant) - `7za.exe`, a standalone console version of 7zip archiver, [download](https://www.7-zip.org/download.html) Note: We need both the `psexec` and `paexec`. Although both applications are supposed to be functionally equivalent they actually both have different behavior under some circumstances. **Unleashing the power of Gargamel** Gargamel needs to be launched from an elevated terminal to be fully functional. Currently it does not support the UAC dialog nor any kind of notification when running with limited privileges. When running with limited user privileges, then some operations like target memory dumping will not work. **Basic example** Assume you want to connect to a computer with the following parameters: - address `192.168.42.47` - username `Jano` - password `nbusr123` The following command will acquire firewall state, network state, logged users, running processes, active network connections, registry, system & application event logs using PsExec method. Evidence will be stored in the `testResults` directory relative to the location of Gargamel. ```auto gargamel.exe -c 192.168.42.47 -u Jano --psexec -o testResults ``` Gargamel will ask you for password of the remote user, in our example the password is `nbusr123`. Note that password will be hidden when typing. It is also possible to specify the password directly as program argument. ```auto gargamel.exe -c 192.168.42.47 -u Jano --psexec -p nbusr123 -o testResults ``` **Domain example** Assume you want to connect to a computer in a domain with the following parameters: - domain `WORKSPACE` - computer name `JanovPC` - username `Jano` - password `nbusr123` The following command will acquire firewall state, network state, logged users, running processes, active network connections, registry, system & application event logs using PsExec method. ```auto gargamel.exe -c JanovPC -u Jano -d WORKSPACE --psexec -o testResults ``` Or to skip password prompting specify the password directly. ```auto gargamel.exe -c JanovPC -u Jano -d WORKSPACE --psexec -p nbusr123 -o testResults ``` **Other connection methods** PsExec is one of the 5 supported connection methods. You can replace the `--psexec` with the following options: - `--psexec` - `--psrem`, if PowerShell remoting is configured on target machine. - `--rdp`, if RDP is enabled on target machine. - `--wmi`. - `--ssh`, if target machine uses Linux. It is possible to use several methods at once. For example to use both PsExec and RDP one can use the following command. ```auto gargamel.exe -c 192.168.42.47 -u Jano --psexec --rdp -o testResults ``` There is also a special switch `--all` that is equal to specifying `--psexec --rdp --psrem --wmi`. Note: Launch parameters are order-agnostic, i.e. it does not matter in which order the parameters are specified. **Acquire memory** To acquire also memory dump, then simply add the `-m` flag to the program parameters, i.e. ```auto gargamel.exe -c 192.168.42.47 -u Jano --psexec -o testResults -m ``` If you wish to acquire ONLY the memory dump without other evidence then use the following command. ```auto gargamel.exe -c 192.168.42.47 -u Jano --psexec -o testResults -m --no-events-search --no-evidence-search --no-registry-search ``` This functionality is available only for Windows targets. **Run custom commands** Gargamel may run custom Windows CMD or Linux shell commands on remote machine. First create a file `custom-commands.txt` with the following content. ```auto # Will be run using any method ipconfig # Will run only when launching with at least one of --all, --psexec, --wmi methods :psexec:wmi ipconfig -all ``` Results of the above commands will be stored in the directory specified by `-o` option. To run the above commands written in `custom-commands.txt` use the `-e` switch, i.e. ```auto gargamel.exe -c 192.168.42.47 -u Jano --psexec -o testResults -e custom-commands.txt ``` **Download custom files** Gargamel is able to download remote files. First create a file `custom-files.txt` with the following content. ```auto C:\Users\Public\sss* C:\Users\Jano\danove.pdf # This line and the next one will be ignored # C:\Users\Jano\somBajecny.pptx ``` **Note: Wildcards \* and ? are supported but currently only in filenames, not parent directories, i.e. C:UsersJ\*danove.pdf will most likely not work.** Results of the above commands will be stored in the directory specified by `-o` option. To run the above commands written in `custom-files.txt` use the `-s` switch, i.e. ```auto gargamel.exe -c 192.168.42.47 -u Jano --psexec -o testResults -s custom-files.txt ``` **All options** All supported switches are described below. ```auto USAGE: gargamel.exe [FLAGS] [OPTIONS] --user FLAGS: -a, --all Acquire evidence from Windows machine using all supported methods (PsExec, PsRemote, WMI, RDP). --no-events-search Disables Windows event logs acquisition. --no-evidence-search Disables acquisition of evidence that can be usually downloaded quickly (like ipconfig, firewall status etc..) --no-registry-search Disables target registry acquisition. -h, --help Prints help information -m, --mem-image Optional: Memory dump of a target Windows machine. --local Acquire evidence from local machine. --nla Optional: Use network level authentication when using RDP. (Windows targets only) --no-7z Optional: Disable 7zip compression for registry & memory images.This will significantly decrease the running time, but WMI and RDP connections will probably not work properly. (Windows targets only) --psexec Acquire evidence from Windows machine using PsExec. Requires both PsExec64.exe and paexec.exe in the current directory or in the path. --psrem Acquire evidence from Windows machine using PowerShell. Requires both PsExec64.exe and paexec.exe in the current directory or in the path. --rdp Acquire evidence from Windows machine using RDP. Requires SharpRDP.exe in the current directory or in the path. --ssh Acquire evidence from Linux machine using SSH. Requires both plink.exe and pscp.exe in the current directory or in the path. -V, --version Prints version information --wmi Acquire evidence from Windows machine using WMI. Requires WMImplant.ps1 in the current directory or in the path and PowerShell 3.0+ on the host machine.Note: It is necessary to disable Windows Defender real-time protection (other AVs not tested). OPTIONS: -c, --computer Remote computer address/name. [default: 127.0.0.1] -u, --user Remote user name -d, --domain Optional: Remote Windows domain -o, --output Name of local directory to store the evidence [default: evidence-output] -p, --password Optional: Remote user password. Skipping this option will prompt a possibility to put a password in hidden way.To specify an empty password use `-p ""` --redownload Optional: Download and DELETE specified file from target computer. Use this in case of previous failed partially completed operation. For just downloading a file (without deleting it) please use a `search` switch. If you specify a 7zip chunk (.7z.[chunk-number], e.g. .7z.004), then it will also automatically try to download subsequent chunks.Use also with --psexec --psrem, --rdp, --wmi, --all -r, --remote-storage Name of remote directory to be used as a temporary storage. (Windows targets only) [default: C:\Users\Public] -e, --commands Optional: File with custom commands to execute on remote computer -s, --search Optional: File with files names to be searched on remote computer. File names supports also `*` and `?` wildcards on file names (but not yet parent directories). --key Optional: Name/path of SSH private key file. (Linux target only) --timeout Optional: Timeout in seconds for long running operations.This option is a workaround for a bug in WMImplant.ps1 amd SharpRDP.exe where finishing of a long running operation cannot sometimes properly close the connection leaving the Gargamel in seemingly frozen state or executing the next operation with the previous one unfinished on target site.Increasing this timeout may solve issues when acquiring registry or memory image from target machine. [default: 300] ``` **Known issues** - WMI cannot write its output to file with symbol `_` in its path/name. ## GitHub: > **[GitHub - Lifars/gargamel: A forensic evidence acquirer](https://github.com/Lifars/gargamel)** > > A forensic evidence acquirer