Questions tagged [powershell]
task automation and configuration management CLI for Windows, the first release was in Windows XP SP2 in 2006
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Powershell this term is not recognized [closed]
I was using powerview on machine and it was working fine the suddenly
The term Get-DomainUser is not recognized as the name of a cmdlet, function, script file, or operable program
And all ps1 files ...
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9
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Seeking advice for possible virus [duplicate]
I have grown suspicious because I just witnessed powershell opening and immediately closing very fast and multiple times, probably 15 times. After that, the same happened with schtasks.exe. The ...
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Powershell execution policy's effect on remote processes
A piece of python code at work was designed to run a few .ps1 scripts on remote machines to test for weak spots, using impacket.
The flow is -
We use impacket's SMBConnection to upload .bat and .ps1 ...
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Do using Invoke-Command with a domain admin account create a security issue?
Invoke-Command with a domain admin account is an easy way to do stuff across a domain. However, running Invoke-Command will create a win32 user profile that I believe has a hashed password attached to ...
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How to find the process that is running PowerShell commands that appear in Windows Defender
On one of our Windows Datacenter 2016, there's an alert that a trojan is trying to install :
The following PowerShell commands are trying to execute at seemingly random hours of the day (always ...
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52
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Bypassing Office365 Server Send As Denial [closed]
I am trying to send an e-mail via Windows Powershell ISE using Office365's hosting server, on behalf of another user which is specified in FROM part of the code using. But when I try to do this, I get:...
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1
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130
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API Client Secrets are Being Logged in Plaintext (PowerShell Logs)
I'm currently implementing a PowerShell script to call the Sophos API (https://developer.sophos.com/intro).
Write-Output "`nEnter the Sophos API key / client secret."
$ClientSecret = Read-...
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239
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Is it safe to disable certificate checking?
I am developing a web API, which runs only on my local computer, and using PowerShell to test it. Here is an example test:
$baseUri = 'https://localhost:5001'
$body = '{
"title": "...
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0
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123
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Intercept API calls of powershell module
I am looking at a way to intercept the API call made by the AzureAD powershell module. Wireshark is not able to decrypt the TLS packets sent and I'd also like to work with the HTTP requests rather ...
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340
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Invoke GetProcAddress returns nothing
I try to execute a meterpreter shellcode to a windows machine. In order to bypass the AV, I try to load the shellcode in the memory thanks to the DelegateType Reflection technique. Below, the first ...
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PowerShell - privilege escalation [closed]
In the past, I have used the Sherlock PowerShell script to quickly find missing software patches for local privilege escalation vulnerabilities.
However, I am looking for a similar script, but I ...
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1
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Is there a way to run a downloaded powershell script as admin without setting a global ExecutionPolicy bypass?
Since the 20H2 build of Windows 10 came out, if I want to run a script without copying and pasting it into a PowerShell window, I have to write the following command:
Set-ExecutionPolicy -...
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1
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How to run PrintSpoofer in memory from powershell?
PrintSpoofer uses named pipe impersonation to elevate on Windows 10 to SYSTEM from a user with SeImpersonatePrivilege (Local Service, Network Service, Administrator etc.). The compiled version is ...
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193
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How can I modify Windows registry programmatically? [closed]
Which programming language I can use to modify Windows registry? Can I use js or powershell?
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772
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Possible to create a self-signed certificate with AIA extension using PowerShell or openssl?
I am able to use the PowerShell New-SelfSignedCertificate cmdlet to create a self-signed cert just fine, but I'd like to create one with an AIA extension and give it an OCSP responder URL.
There is a ...
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Is this Windows local code execution bug also a security vulnerability?
I stumbled on a Windows bug leading to code execution. I believe it should be categorized as a vulnerability but Microsoft does not recognize it as such. I would like to read other opinions.
...
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230
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Learn Bash or Powershell for Security Work? [closed]
Is Bash more commonly used in security work than PowerShell? If so, why? (Now that Powershell can be used on Linux)
I tried to Google around for an answer on this, and the only questions we seem to ...
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810
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How can I execute a base64 encoded exe stored as a variable, inside a powershell script without writing any files?
Basically if I have exe1 encoded with base64 and I copy that encoded source into a powershell script as a variable. I want to be able to decode it and execute the source exe without writing the exe to ...
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Metasploit shell non-responsive
Metasploit successfully executes the exploit, but after that, I get a non-responsive shell:
Do you know what could be the problem here?
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1
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142
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How does one tighten up their git repo security for Powershell?
Back when I was a Java developer, we used to use build.properties or build.xml to store sensitive information outside of the VCS and just add the file with whatever passwords would go in it after ...
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How do I stabilize a reverse shell in when the attack box is using powershell?
I've managed to get a version of netcat onto my Windows machine and I can run the standard:
nc -lvnp 1234
and this properly connects to the victim's machine, but it's a very fragile connection. Ctrl +...
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autorunscript metasploit
I'm trying to run the following autoscript
use exploit/multi/handler
set payload …
set lhost
set lport
set AutoRunScript multi_console_command -r /root/script.rc
set ...
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2
answers
3k
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Getting an Interactive Powershell Reverse Shell Using socat
I've read that socat is capable of creating interactive shells. I'd like to create an interactive Powershell shell.
Kali Listener
# socat - tcp4-listen:1338
Windows (socat.exe used from here: https://...
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1
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206
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Why Invoke-ReflectivePEInjection not recognized [closed]
I was trying Invoke-ReflectivePEInjection by doing
.\Convert-BinaryToString
Convert-BinaryToString C:\file.exe
$InputString="base64string"
$PEBytes=[System.Convert]::FromBase64String($InputString)
...
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692
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Powershell (WinRM) and cmd.exe: reg query output deviation
during a CTF I encountered the following anomaly regarding PS & cmd.exe:
I got access to a Windows x86 server through WinRM Port 5985 using evil-winrm. (https://github.com/Hackplayers/evil-winrm) ...
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2
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1
answer
315
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Is running Powershell always as administrator a good practice?
I work as software engineer in a company. The IT deparment has decided to forbid powershell execution from our computers as part of the actions they are implementing to avoid Emotet malware. As ...
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1
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Would my USB interface be infected if I attached and immediately detached an infected USB device?
Two days ago, someone gave me their pen drive to copy some songs from. As soon as I inserted the drive into my laptop's USB interface, Windows Defender immediately warned me that the drive was ...
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0
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142
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Calling Powershell script from external program passing an argument
I have an external program which calls a PowerShell script with a random secret identifier as a single argument. The PowerShell script needs to return the same random secret id when it calls the REST ...
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379
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gpg won't find public key if not in interactive session
How to make imported public key available after logging off?
I have a Powershell process that encrypts the file (recipient was masked):
Start-Process "gpg.exe" -ArgumentList "--batch --yes --always-...
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2
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Can a PowerShell script inside a Zip file execute automatically upon unzipping?
I have a zip file that has a Powershell script inside that I want to look at. Is it possible that the Powershell script could execute automatically just by unzipping the file? This is not something I ...
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2
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What causes Windows security logs saying an attempt was made to reset an account's password?
This falls under the category of eliminating what might be normal activity from my attention.
I'm looking at Windows 7 security event logs. I don't have context to know if the following event is a ...
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759
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How to obtain Service Tickets (TGS) for Service Accounts with no SPNs (ServicePrincipalName) set?
The first step in a kerberoasting attack is to discover Service Accounts via AD enumeration. One way to do so is searching LDAP for any registered SPNs (Service Principal Names). However, from my ...
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How should you configure PowerShell logs permissions?
I'm currently trying to figure out the best way to configure Windows PowerShell logging, so that
it is secure (Attackers cannot gain sensitive data out of it)
it helps in DFIR (digital forensic and ...
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2
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146
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Insider threat mitigation sql databases
I support a number of applications some of which have sql databases. There's a number of scripts (mostly powershell/bash) to check the state of an application to see if it's considered healthy. Some ...
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What security implications are involved when using a CSV file to fill a SQL table?
I have some data on CSV files and I want automate the input of this data into an SQL database using Powershell. The data is mostly, if not completely, numbers.
I am using a script based on the one ...
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Java web app hosted in tomcat hanged for more than 10 min with logs containing powershell attack
We have a java web application running in tomcat which is hosted in AWS. The operating system used in the server is Centos. Today it become inaccessible for more than 10 minutes. When we got access, ...
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252
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How do I prevent someone from using my certificate to sign a malicious script on my PC?
The first step to make Powershell more secure is to create a certificate to sign my scripts. Then you actually sign it with this command:
Set-AuthenticodeSignature -FilePath myScript.ps1 -Certificate ...
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1
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2k
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How to retrieve Kerberos Service tickets?
I am learning Kerberoasting see below are my steps that I am following.
Step:1. Attacker will find the SPN's
Step:2. After identifying we will request for TGS for that SPN. This is the script for ...
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1
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943
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What is this PowerShell script sending Discord info to random server?
Upon turning on my personal Windows 10 computer tonight, I was greeted with ConEmu telling me that two PowerShell commands were run at startup. Both commands were the same thing:
powershell -...
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2
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Windows - How to restrict access to VBScript.dll and JScript.dll?
In a recent blog post from a company called Recorded Future, which specializes in data protection, details were provided on commonly exploited vulnerabilities on the Windows platform.
Recorded Future ...
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0
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502
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How do use ArcSight ESM to monitor powershell logs? [closed]
I have read mixed reviews, our team within our DoD sector suggest that ingestion the logs directly into the SIEM platform would be best and I feel that having a third party tool with signatures, look ...
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Extensions and Modules and Packages, Oh My! [closed]
How do you know if extensions (e.g., Code, Chrome, Firefox), modules (e.g., PowerShell), or packages (e.g., Python, R) are not malicious? How can you control or monitor that in an environment? Stuff ...
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Did I just infect my machine?
I just ran an AVI file that was sent to me, thinking AVIs were safe. Turns out it was a windows shortcut with this in the path:
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NoPr -WINd
1 ...
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1
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Block AzureRM PowerShell Module
Is there a way to block AzureRM PowerShell module commands from being executed by certain Azure AD users somewhere in Azure group policy? Or is there a way to do this with PowerShell tools?
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why do I get an email with address of Me'.exe'
I am wondering if there is a security issue with this. I use Mozilla, and I got an email with Me, '.exe' <[email protected]>. I have never seen this. What is it? Is it a way to send mass email? ...
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Powershell says microsoft's own ps1 script is insecure, should I proceed with running the script?
I am trying to update Powershell to version 5.1 which I have downloaded directly from Microsoft's website. The download's are signed from Microsoft (although the signatures are expired by a few ...
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440
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Is this type of encryption one-way?
I am writing a Powershell script that requires a privileged account to do something. Of course, I'm not going to include the password of this account in the .ps1 file in clear text so I am following ...
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Cortana password bypass CVE-2018-8140
Recently a vulnerability in Microsoft's Cortana (CVE2018-8140) has been patched. Mcafee made a blog post about it explaining some background information.
There is also a video showing a Proof of ...
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Are the interactive methods of credential gathering listed here actually secure, since they dont store the credentials on disk?
I found an article about different ways to collect and pass credentials in powershell. The author states that some of these methods are 100% secure (which is obviously an exaderation) but for ...
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How can I safely use Get-Credential to obtain a username and password for a set period of time for use as command line arguments?
Credentials in the form of SSH keys can be stored in memory using SSH Agent; However, if clicking the wrong link, or running a malicious program they can also be snatched from memory and sent ...
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