mgeeky-Penetration-Testing-.../social-engineering/compressedPowershell.py

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Python
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2018-02-02 22:22:43 +01:00
#!/usr/bin/python3
import io
import sys
import gzip
import base64
def main(argv):
if len(argv) < 2:
print('Usage: ./compressedPowershell.py <input>')
sys.exit(-1)
out = io.BytesIO()
encoded = ''
with open(argv[1], 'rb') as f:
inp = f.read()
with gzip.GzipFile(fileobj = out, mode = 'w') as fo:
fo.write(inp)
encoded = base64.b64encode(out.getvalue())
powershell = '''$s = New-Object IO.MemoryStream(, [Convert]::FromBase64String("{}"));
IEX (New-Object IO.StreamReader(New-Object IO.Compression.GzipStream($s, [IO.Compression.CompressionMode]::Decompress))).ReadToEnd();'''.format(encoded.decode())
print(powershell)
if __name__ == '__main__':
main(sys.argv)