Impacket kali linux install

What is Impacket?

Impacket is a collection of Python classes for working with network protocols. Impacket is focused on providing low-level programmatic access to the packets and for some protocols (e.g. SMB1-3 and MSRPC) the protocol implementation itself. Packets can be constructed from scratch, as well as parsed from raw data, and the object oriented API makes it simple to work with deep hierarchies of protocols. The library provides a set of tools as examples of what can be done within the context of this library.

What protocols are featured?

Ethernet, Linux «Cooked» capture.
IP, TCP, UDP, ICMP, IGMP, ARP.
IPv4 and IPv6 Support.
NMB and SMB1, SMB2 and SMB3 (high-level implementations).
MSRPC version 5, over different transports: TCP, SMB/TCP, SMB/NetBIOS and HTTP.
Plain, NTLM and Kerberos authentications, using password/hashes/tickets/keys.
Portions/full implementation of the following MSRPC interfaces: EPM, DTYPES, LSAD, LSAT, NRPC, RRP, SAMR, SRVS, WKST, SCMR, BKRP, DHCPM, EVEN6, MGMT, SASEC, TSCH, DCOM, WMI, OXABREF, NSPI, OXNSPI.
Portions of TDS (MSSQL) and LDAP protocol implementations.

Grab the latest stable release, unpack it and run python3 -m pip install . ( python2 -m pip install . for Python 2.x) from the directory where you placed it. Isn’t that easy?

In order to install the source execute the following command from the directory where the Impacket’s distribution has been unpacked: python3 -m pip install . ( python2 -m pip install . for Python 2.x). This will install the classes into the default Python modules path; note that you might need special permissions to write there.

If you want to run the library test cases you need to do mainly three things:

Install and configure a Windows 2012 R2 Domain Controller.
- Be sure the RemoteRegistry service is enabled and running.
Configure the dcetest.cfg file with the necessary information
Install tox ( python3 -m pip install tox )

Once that’s done, you can run tox and wait for the results. If all goes well, all test cases should pass. You will also have a coverage HTML report located at impacket/tests/htlmcov/index.html

Build Impacket’s image:

Using Impacket’s image:

This software is provided under a slightly modified version of the Apache Software License. See the accompanying LICENSE file for more information.

SMBv1 and NetBIOS support based on Pysmb by Michael Teo.

The spirit of this Open Source initiative is to help security researchers, and the community, speed up research and educational activities related to the implementation of networking protocols and stacks.

The information in this repository is for research and educational purposes and not meant to be used in production environments and/or as part of commercial products.

If you desire to use this code or some part of it for your own uses, we recommend applying proper security development life cycle and secure coding practices, as well as generate and track the respective indicators of compromise according to your needs.

Whether you want to report a bug, send a patch, or give some suggestions on this package, drop us a few lines at oss@secureauth.com.

For security-related questions check our security policy.

About

Impacket is a collection of Python classes for working with network protocols.

Источник

Hacking Articles

Raj Chandel’s Blog

Impacket Guide: SMB/MSRPC

There have been many Red Team scenarios, Capture the Flag challenges where we face the Windows Server. After exploiting and getting the initial foothold in the server, it is tough to extract the data and as well as there are scenarios where we couldn’t get onto the server per se. But using the SMB, we can execute commands remotely on the server. The SecureAuth visualized this, and they gave us one of the most amazing collections of Python classes for working on different protocols. This collection is named Impacket.

Introduction to SMB
Introduction to MSRPC
Configurations Used in Practical
Impacket Categories
Installation
smbclient.py
lookupsid.py
reg.py
rpcdump.py
samrdump.py
services.py
ifmap.py
opdump.py
getArch.py
netview.py
Conclusion

Introduction to SMB

The SMB is a network protocol which is also known as the Server Message Block protocol. It is used to communicate between a client and a server. It can be used to share the files, printers and some other network resources. It was created by IBM in the 1980s.

Introduction to MSRPC

MSRPC or Microsoft Remote Procedure Call is a modified version of DCE/RPC. It was created by Microsoft to seamlessly create a client/server model in Windows. The Windows Server domain protocols are entirely based on MSRPC.

Configurations Used in Practical

Attacker Machine
- OS: Kali Linux 2020.1
- IP Address: 168.1.112
Target Machine
- OS: Windows Server 2016
- IP Address: 168.1.105

Impacket Categories

Remote Execution
Kerberos
Windows Secrets
Server Tools/MiTM Attacks
WMI
Known Vulnerabilities
SMB/MSRPC
- smbclient.py
- lookupsid.py
- reg.py
- rpcdump.py
- samrdump.py
- services.py
- ifmap.py
- opdump.py
- getArch.py
- netview.py
MSSQL / TDS
File Formats
Other

Installation

Before using the Impacket tool kit on our system, we need to install it. The installation process is quite simple. First, head to the GitHub Repository by clicking here. Then using the git clone command, we clone the complete repository to our Attacker Machine. After cloning we can see that there is a setup.py file, let us install it. After installation, we will head to the examples directory and use the scripts as per our convenience.

smbclient.py

There are moments where we needed to perform multiple actions between the attacker machine and the target machine. It can be listing shares and files, renaming some file, uploading the binaries or downloading files from the target machine. There are some situations where we even need to create a folder or two on the target machine. Performing such actions can get tricky while working with a shell that can be detected or can close at any time. The smbclient.py script helps us in these situations. It can connect to the Target Machine with the help of a bunch of attributes.

Requirements:

Domain
Username
Password/Password Hash
Target IP Address

When we provide the following parameters to the smbclient in such a format as shown below and we will get connected to the target machine and we have an smb shell which can run a whole range of commands like dir, cd, pwd, put, rename, more, del, rm, mkdir, rmdir, info, etc

Syntax:

smbclient.py [domain]/[user]:[password/password hash]@[Target IP Address]

Command:

lookupsid.py

A Security Identifier (SID) is a unique value of variable length that is used to identify a user account. Through a SID User Enumeration, we can extract the information about what users exist and their data. Lookupsid script can enumerate both local and domain users. There is a Metasploit module too for this attack. If you are planning on injecting a target server with a golden or a silver ticket then one of the things that are required is the SID of the 500 user. Lookupsid.py can be used in that scenario. When we provide the following parameters to the Lookupsid in such a format as shown below.

Requirements:

Domain
Username
Password/Password Hash
Target IP Address

Syntax:

lookupsid.py [domain]/[user]:[password/password hash]@[Target IP Address]

Command:

reg.py

This Impacket script is ripped straight out of the reg.exe of the Windows OS. Reg.exe is an executable service that can read, modify and delete registry values when used with eh combination of the query, add, delete keywords respectively. We can even begin to express the importance of access to the registry. Registry controls each and every aspect of the system. It can be used to gain information about the various policies, software and also alter some of those policies.

Requirements:

Domain
Username
Password/Password Hash
Target IP Address
Registry Key Name

Syntax:

reg.py [domain]/[user]:[password:password hash]@[Target IP Address] [action] [action parameter]

Command:

rpcdump.py

RPC or Remote Procedure Call is when a computer program causes a procedure to execute in different address space which is coded as a normal procedure call. This script can enumerate those endpoints for us. It also matches them to some of the well-known endpoints in order to identify them.

Requirements:

Domain
Username
Password/Password Hash
Target IP Address

Syntax:

rpcdump.py [domain]/[user]:[Password/Password Hash]@[Target IP Address]

Command:

samrdump.py

Samrdump is an application that retrieves sensitive information about the specified target machine using the Security Account Manager (SAM). It is a remote interface that is accessible under the Distributed Computing Environment / Remote Procedure Calls (DCE/RPC) service. It lists out all the system shares, user accounts, and other useful information about the target’s presence in the local network. The image clearly shows us all the user accounts that are held by the remote machine. Inspecting all the available shares for sensitive data and accessing other user accounts can further reveal valuable information.

Requirements:

Domain
Username
Password/Password Hash
Target IP Address

Syntax:

samrdump.py [domain]/[user]:[Password/Password Hash]@[Target IP Address]

Command:

services.py

The services script of the Impacket communicates with Windows services with the help of MSRPC Interface. It can start, stop, delete, read status, config, list, create and change any service. While working on Red Teaming assignments there were so many tasks that could have been simplified if only, we have access to the services of the Target machine. This makes it all a simple task.

Requirements:

Domain
Username
Password/Password Hash
Target IP Address
Action

Syntax:

services.py [domain]/[user]:[Password/Password Hash]@[Target IP Address] [Action]

Command:

ifmap.py

Ifmap scripts initially bind to the MGMT interface of the Target machine. Then it fetches a list of interface IDs. Then it adds those IDs to another large list of UUIDs it already has in its database. Then it tries to bind each of the interfaces and reports the status of the interface. The status can be listed or listening. Its ability to gather information is unmatched. There is a Metasploit Module that works quite similar to this script is “auxiliary/scanner/dcerpc/endpoint_mapper” The list of UUIDs (Universal Unique Identifier) which are running endpoint-mapper mapped to the unique services. After getting these services, an attacker can search on the internet to find if any of these services are vulnerable to Overflow over RPC.

Requirements:

Target IP Address
Target Port
Hostname (optional)

Syntax:

ifmap.py [Target IP Address] [Target Port]

Command:

opdump.py

This script binds to the given hostname:port and connects to the DCERPC (Distributed Computing Environment/ Remote Procedure Calls) interface. After connecting, it tries to call each of the first 256 operation numbers in turn and reports the outcome of each call. This generates a burst of TCP connections to the given host:port!

It gives the output as follows:

op 0 (0x00): rpc_x_bad_stub_data

op 1 (0x01): rpc_x_bad_stub_data

op 2 (0x02): rpc_x_bad_stub_data

op 3 (0x03): success

op 4 (0x04): rpc_x_bad_stub_data

ops 5-255: nca_s_op_rng_error

rpc_x_bad_stub_data, rpc_s_access_denied, and success generally means there’s an operation at that number.

Requirements:

IP Address
Hostname (optional)
Port Interface Version

Syntax:

opdump.py [Target IP Address] [Port Interface Version]

Command:

getArch.py

All PDUs (Protocol Data Unit) encoded with the NDR64 transfer syntax must use a value of 0x10 for the data representation format label. This value is used only in the transfers of the x64 bit systems. This scripts when provided with a target tried to communicate with the target system and collects the value of the data representation format label. Then it matches it to the NDR64 syntax stored in its code. Then it can provide the information to the attacker if the Operating System is a 64 bit or 32-bit system. We can also provide a list of targets and it can work simultaneously on all the targets.

Requirements:

Target IP Address

Syntax:

getArch.py -target [Target IP Address]

getArch.py -targets [Target List]

Command:

netview.py

It is an enumeration tool. It requires the domain name to enumerate hosts. It can also be provided with a list of hosts or targets. Once a list is gathered then netview checks each of the following:

IP addresses
Shares
Sessions
Logged On Users

Once finding the information it doesn’t stop. It keeps looping over the hosts found and keeps a detailed track of who logged in/out from remote servers. It keeps the connections with the target systems and it is very stealthy as it just sends few DCERPC packets. This script requires that the attacker machine is able to resolve the domain machine’s NetBIOS names. This can be achieved by setting the DNS on the attacker machine to the domain DNS.

Requirements:

Domain
Target IP Address
Username

Syntax:

netview.py [domain]/[User] -target [Target IP Address] -users [User List]

netview.py [domain]/[User] -targets [Target List] -users [User List]

Command:

Conclusion

In this article, we discussed the scripts in the Impacket Toolkit that can interact with the SMB/MSRPC services on a target system. Impacket has many categories which will further explore in due time.

Author: Pavandeep Singh is a Technical Writer, Researcher and Penetration Tester. Can be Contacted on Twitter and LinkedIn

Источник

Impacket kali linux install