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GoScan is an interactive network scanner client, featuring auto-completion, which provides abstraction and automation over nmap.

Although it started as a small side-project I developed in order to learn @golang, GoScan can now be used to perform host discovery, port scanning, and service enumeration not only in situations where being stealthy is not a priority and time is limited (think at CTFs, OSCP, exams, etc.), but also (with a few tweaks in its configuration) during professional engagements.

GoScan is also particularly suited for unstable environments (think unreliable network connectivity, lack of “screen“, etc.), given that it fires scans and maintain their state in an SQLite database.

Scans run in the background (detached from the main thread), so even if connection to the box running GoScan is lost, results can be uploaded asynchronously (more on this below).

That is, data can be imported into GoScan at different stages of the process, without the need to restart the entire process from scratch if something goes wrong.

Also Read – What is Bug Bounty Program?

In addition, the Service Enumeration phase integrates a collection of other tools (e.g., EyeWitness, Hydra, nikto, etc.), each one tailored to target a specific service.

Installation

Binary installation (Recommended)

Binaries are available from the Release page.

Linux (64bit)
$ wget https://github.com/marco-lancini/goscan/releases/download/v2.4/goscan_2.4_linux_amd64.zip
$ unzip goscan_2.4_linux_amd64.zip

Linux (32bit)
$ wget https://github.com/marco-lancini/goscan/releases/download/v2.4/goscan_2.4_linux_386.zip
$ unzip goscan_2.4_linux_386.zip

After that, place the executable in your PATH
$ chmod +x goscan
$ sudo mv ./goscan /usr/local/bin/goscan

Build from source

Clone and spin up the project
$ git clone https://github.com/marco-lancini/goscan.git
$ cd goscan/
$ docker-compose up –build
$ docker-compose run cli /bin/bash

Initialize DEP
root@cli:/go/src/github.com/marco-lancini/goscan $ make init
root@cli:/go/src/github.com/marco-lancini/goscan $ make make setup

Build
root@cli:/go/src/github.com/marco-lancini/goscan $ make build

To create a multi-platform binary, use the cross command via mak
root@cli:/go/src/github.com/marco-lancini/goscan $ make cross

Usage

GoScan supports all the main steps of network enumeration:

StepCommands
Load targetsAdd a single target via the CLI (must be a valid CIDR): load target SINGLE <IP/32>Upload multiple targets from a text file or folder: load target MULTI <path-to-file>
Host DiscoveryPerform a Ping Sweep: sweep <TYPE> <TARGET> Or load results from a previous discovery:Add a single alive host via the CLI (must be a /32): load alive SINGLE <IP>Upload multiple alive hosts from a text file or folder: load alive MULTI <path-to-file>
Port ScanningPerform a port scan: portscan <TYPE> <TARGET>Or upload nmap results from XML files or folder: load portscan <path-to-file>
Service EnumerationDry Run (only show commands, without performing them): enumerate <TYPE> DRY <TARGET> Perform enumeration of detected services: enumerate <TYPE> <POLITE/AGGRESSIVE> <TARGET>
Special ScansEyeWitnessTake screenshots of websites, RDP services, and open VNC servers (KALI ONLY): special eyewitnessEyeWitness.py needs to be in the system pathExtract (Windows) domain information from enumeration dataspecial domain <users/hosts/servers>DNSEnumerate DNS (nmap, dnsrecon, dnsenum): special dns DISCOVERY <domain>Bruteforce DNS: special dns BRUTEFORCE <domain>Reverse Bruteforce DNS: special dns BRUTEFORCE_REVERSE <domain> <base_IP>
UtilsShow results: show <targets/hosts/ports>Automatically configure settings by loading a config file: set config_file <PATH>Change the output folder (by default ~/goscan): set output_folder <PATH>Modify the default nmap switches: set nmap_switches <SWEEP/TCP_FULL/TCP_STANDARD/TCP_VULN/UDP_STANDARD> <SWITCHES>Modify the default wordlists: set_wordlists <FINGER_USER/FTP_USER/...> <PATH>

External Integrations

The Service Enumeration phase currently supports the following integrations:

WHATINTEGRATION
ARPnmap
DNSnmapdnsrecondnsenumhost
FINGERnmapfinger-user-enum
FTPnmapftp-user-enumhydra [AGGRESSIVE]
HTTPnmapniktodirbEyeWitnesssqlmap [AGGRESSIVE]fimap [AGGRESSIVE]
RDPnmapEyeWitness
SMBnmapenum4linuxnbtscansamrdump
SMTPnmapsmtp-user-enum
SNMPnmapsnmpcheckonesixtyonesnmpwalk
SSHhydra [AGGRESSIVE]
SQLnmap
VNCEyeWitness