Kscan – Simple Asset Mapping Tool

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## 0 Disclaimer (~~The author did not participate in the XX action, don’t trace it~~)

* This tool is only for legally authorized enterprise security construction behaviors and personal learning behaviors. If you need to test the usability of this tool, please build a target drone environment by yourself.

* When using this tool for testing, you should ensure that the behavior complies with local laws and regulations and has obtained sufficient authorization. Do not scan unauthorized targets.

We reserve the right to pursue your legal responsibility if the above prohibited behavior is found.

If you have any illegal behavior in the process of using this tool, you shall bear the corresponding consequences by yourself, and we will not bear any legal and joint responsibility.

Before installing and using this tool, please be sure to carefully read and fully understand the terms and conditions.

Unless you have fully read, fully understood and accepted all the terms of this agreement, please do not install and use this tool. Your use behavior or your acceptance of this Agreement in any other express or implied manner shall be deemed that you have read and agreed to be bound by this Agreement.

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## 1 Introduction

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Kscan is an asset mapping tool that can perform port scanning, TCP fingerprinting and banner capture for specified assets, and obtain as much port information as possible without sending more packets. It can perform automatic brute force cracking on scan results, and is the first open source RDP brute force cracking tool on the go platform.

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## 2 Foreword

At present, there are actually many tools for asset scanning, fingerprint identification, and vulnerability detection, and there are many great tools, but Kscan actually has many different ideas.

* Kscan hopes to accept a variety of input formats, and there is no need to classify the scanned objects before use, such as IP, or URL address, etc. This is undoubtedly an unnecessary workload for users, and all entries can be normal Input and identification. If it is a URL address, the path will be reserved for detection. If it is only IP:PORT, the port will be prioritized for protocol identification. Currently Kscan supports three input methods (-t,–target|-f,–fofa|–spy).

* Kscan does not seek efficiency by comparing port numbers with common protocols to confirm port protocols, nor does it only detect WEB assets. In this regard, Kscan pays more attention to accuracy and comprehensiveness, and only high-accuracy protocol identification , in order to provide good detection conditions for subsequent application layer identification.

* Kscan does not use a modular approach to do pure function stacking, such as a module obtains the title separately, a module obtains SMB information separately, etc., runs independently, and outputs independently, but outputs asset information in units of ports, such as ports If the protocol is HTTP, subsequent fingerprinting and title acquisition will be performed automatically. If the port protocol is RPC, it will try to obtain the host name, etc.

[]( “Kscan是一款纯go开发的全方位扫描器，具备端口扫描、协议检测、指纹识别，暴力破解等功能。支持协议1200+，协议指纹10000+，应用指纹20000+，暴力破解协议10余种。 (9)” )[]()

## 3 Compilation Manual

[Compiler Manual]()

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## 4 Get started

Kscan currently has 3 ways to input targets

* -t/–target can add the –check parameter to fingerprint only the specified target port, otherwise the target will be port scanned and fingerprinted

IP address: 114.114.114.114
IP address range: 114.114.114.114-115.115.115.115
URL address: https://www.baidu.com
File address: file:/tmp/target.txt

* –spy can add the –scan parameter to perform port scanning and fingerprinting on the surviving C segment, otherwise only the surviving network segment will be detected

[Empty]: will detect the IP address of the local machine and detect the B segment where the local IP is located
[all]: All private network addresses (192.168/172.32/10, etc.) will be probed
IP address: will detect the B segment where the specified IP address is located

* -f/–fofa can add –check to verify the survivability of the retrieval results, and add the –scan parameter to perform port scanning and fingerprint identification on the retrieval results, otherwise only the fofa retrieval results will be returned

fofa search keywords: will directly return fofa search results

## []()

## 5 Instructions

usage: kscan [-h,–help,–fofa-syntax] (-t,–target,-f,–fofa,–spy) [-p,–port|–top] [-o,–output] [-oJ] [–proxy] [–threads] [–path] [–host] [–timeout] [-Pn] [-Cn] [-sV] [–check] [–encoding] [–hydra] [hydra options] [fofa options]

optional arguments:
-h , –help show this help message and exit
-f , –fofa Get the detection object from fofa, you need to configure the environment variables in advance: FOFA_EMAIL, FOFA_KEY
-t , –target Specify the detection target:
IP address: 114.114.114.114
IP address segment: 114.114.114.114/24, subnet mask less than 12 is not recommended
IP address range: 114.114.114.114-115.115.115.115
URL address: https://www.baidu.com
File address: file:/tmp/target.txt
–spy network segment detection mode, in this mode, the internal network segment reachable by the host will be automatically detected. The acceptable parameters are:
(empty), 192, 10, 172, all, specified IP address (the IP address B segment will be detected as the surviving gateway)
–check Fingerprinting the target address, only port detection will not be performed
–scan will perform port scanning and fingerprinting on the target objects provided by –fofa and –spy
-p , –port scan the specified port, TOP400 will be scanned by default, support: 80, 8080, 8088-8090
-eP, –excluded-port skip scanning specified ports，support：80,8080,8088-8090
-o , –output save scan results to file
-oJ save the scan results to a file in json format
-Pn After using this parameter, intelligent survivability detection will not be performed. Now intelligent survivability detection is enabled by default to improve efficiency.
-Cn With this parameter, the console output will not be colored.
-sV After using this parameter, all ports will be probed with full probes. This parameter greatly affects the efficiency, so use it with caution!
–top Scan the filtered common ports TopX, up to 1000, the default is TOP400
–proxy set proxy (socks5|socks4|https|http)://IP:Port
–threads thread parameter, the default thread is 100, the maximum value is 2048
–path specifies the directory to request access, only a single directory is supported
–host specifies the header Host value for all requests
–timeout set timeout
–encoding Set the terminal output encoding, which can be specified as: gb2312, utf-8
–match returns the banner to the asset for retrieval. If there is a keyword, it will be displayed, otherwise it will not be displayed
–hydra automatic blasting support protocol: ssh, rdp, ftp, smb, mysql, mssql, oracle, postgresql, mongodb, redis, all are enabled by default
hydra options:
–hydra-user custom hydra blasting username: username or user1,user2 or file:username.txt
–hydra-pass Custom hydra blasting password: password or pass1,pass2 or file:password.txt
If there is a comma in the password, use , to escape, other symbols do not need to be escaped
–hydra-update Customize the user name and password mode. If this parameter is carried, it is a new mode, and the user name and password will be added to the default dictionary. Otherwise the default dictionary will be replaced.
–hydra-mod specifies the automatic brute force cracking module: rdp or rdp, ssh, smb
fofa options:
–fofa-syntax will get fofa search syntax description
–fofa-size will set the number of entries returned by fofa, the default is 100
–fofa-fix-keyword Modifies the keyword, and the {} in this parameter will eventually be replaced with the value of the -f parameter

The function is not complicated, the others are explored by themselves

## []()

## 6 Demo

### []()

### 6.1 Port Scan Mode

[]( “Kscan是一款纯go开发的全方位扫描器，具备端口扫描、协议检测、指纹识别，暴力破解等功能。支持协议1200+，协议指纹10000+，应用指纹20000+，暴力破解协议10余种。 (11)” )[]()

### 6.2 Survival network segment detection

[]( “Kscan是一款纯go开发的全方位扫描器，具备端口扫描、协议检测、指纹识别，暴力破解等功能。支持协议1200+，协议指纹10000+，应用指纹20000+，暴力破解协议10余种。 (12)” )[]()

### 6.3 Fofa result retrieval

[]( “Kscan是一款纯go开发的全方位扫描器，具备端口扫描、协议检测、指纹识别，暴力破解等功能。支持协议1200+，协议指纹10000+，应用指纹20000+，暴力破解协议10余种。 (13)” )[]()

### 6.4 Brute-force cracking

[]( “Kscan是一款纯go开发的全方位扫描器，具备端口扫描、协议检测、指纹识别，暴力破解等功能。支持协议1200+，协议指纹10000+，应用指纹20000+，暴力破解协议10余种。 (14)” )[]()

### 6.5 CDN identification

[]( “Kscan是一款纯go开发的全方位扫描器，具备端口扫描、协议检测、指纹识别，暴力破解等功能。支持协议1200+，协议指纹10000+，应用指纹20000+，暴力破解协议10余种。 (15)” )[]()

## []()7 Special thanks

* [EdgeSecurityTeam]()

* [bufferfly]()

* [EHole(Edge Hole)]()

* [NMAP]()

* [grdp]()

* [fscan]()

* [dismap]()

**[Download Kscan]( “Download Kscan” )**Read More