![]() Although most of these tools would fit the purpose of basic system administration, some lack the functionality we need for more advanced troubleshooting and monitoring. The Windows Operating System is equipped with many out-of-the-box utilities to administer the system. We can then learn how these utilities collect such information, so that we can subsequently leverage these techniques in our red teaming tools. We will first explore which utilities are available for harvesting process information from a Windows computer. The tools (including source) can be found here: To be able to collect detailed process data from compromised end-points we wrote a collection of process tools which brings the power of these advanced process utilities to C2 frameworks (such as Cobalt Strike). Moreover, periodically polling process data allows us to react on changes within the environment or provide triggers when an investigation is taking place. Collecting and analysing data of running processes from compromised systems gives us a wealth of information and helps us to better understand how the IT landscape from a target organisation is setup. Having a good technical understanding of the systems we land on during an engagement is a key condition for deciding what is going to be the next step within an operation. If you want to find out a name of the process, run this command: PS C:\> Get-Process -Id (Get-NetTCPConnection -LocalPort 443).In this blog post we are going to explore the power of well-known process monitoring utilities and demonstrate how the technology behind these tools can be used by Red Teams within offensive operations. LocalAddress LocalPort State OwningProcess If you want to find out the ID of the process that is listening on port 443, run this command: PS C:\> Get-NetTCPConnection -LocalPort 443 | Format-Listįormat the output to a table with the properties you look for: PS C:\> Get-NetTCPConnection -LocalPort 443 | Format-Table -Property LocalAddress, LocalPort, State, OwningProcess The property you are looking for is OwningProcess. However, you could always get it by formatting the output. The default output of Get-NetTCPConnection does not include Process ID for some reason and it is a bit confusing. I guess that it should also work on older Windows versions. With PowerShell 5 on Windows 10 or Windows Server 2016, run the Get-NetTCPConnection cmdlet. Make sure “Show processes from all users” is selected. If you don’t see a PID column, click on View / Select Columns. Look for the PID you noted when you did the netstat in step 1. Note the PID (process identifier) next to the port you are looking at. NOTE: To find the process under Task Manager ![]() Look at the process name directly under that. Note that this optionĬan be time-consuming and will fail unless you have sufficientįind the Port that you are listening on under "Local Address" Name is in at the bottom, on top is the component it called,Īnd so forth until TCP/IP was reached. Sequence of components involved in creating the connection Multiple independent components, and in these cases the In some cases well-known executables host b Displays the executable involved in creating each connection or Open a command prompt window (as Administrator) From "Start\Search box" Enter "cmd" then right-click on "cmd.exe" and select "Run as Administrator"Įnter the following text then hit Enter. ![]() o Displays the owning process ID associated with each connection. n Displays addresses and port numbers in numerical form. Note that this option can be time-consuming and will fail unless you have sufficient permissions. In this case the executable name is in at the bottom, on top is the component it called, and so forth until TCP/IP was reached. ![]() In some cases well-known executables host multiple independent components, and in these cases the sequence of components involved in creating the connection or listening port is displayed. b Displays the executable involved in creating each connection or listening port. a Displays all connections and listening ports. (Add -n to stop it trying to resolve hostnames, which will make it a lot faster.) UDP Get-Process -Id (Get-NetUDPEndpoint -LocalPort YourPortNumberHere).OwningProcess PowerShell TCP Get-Process -Id (Get-NetTCPConnection -LocalPort YourPortNumberHere).OwningProcess ![]()
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