script to remove WinMessenger 2.1

import os

import ctypes

import shutil

import re

from subprocess import PIPE, Popen

​

class disable_file_system_redirection:

    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection

    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection

    def __enter__(self):

        self.old_value = ctypes.c_long()

        self.success = self._disable(ctypes.byref(self.old_value))

    def __exit__(self, type, value, traceback):

        if self.success:

            self._revert(self.old_value)

​

def ecmd(self,command):

    with disable_file_system_redirection():

        obj = Popen(command, shell = True, stdout = PIPE, stderr = PIPE)

        out, err = obj.communicate()

        return out,err

​

BatchScript = r"""

@echo off

​

set "user="

​

for /f "skip=1 tokens=1,* delims=\" %%A in ('

    wmic computersystem get username ^|

    powershell -noprofile -command "$input.trim()"

') do set "user=%%~B"

​

echo %user%

"""

def uninstall():

    with disable_file_system_redirection():

        arch= os.popen("wmic os get OSArchitecture").read()

        if '64' in arch:

            query = os.popen("REG QUERY HKEY_LOCAL_MACHINE\\SOFTWARE\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\").read()

        else:

            query = os.popen("REG QUERY HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\").read()

        for i in query.splitlines():

            displayname = os.popen('REG QUERY "%s" /v DisplayName'%(i)).read()

            if "WinMessenger 2.1" in displayname:

                print("WinMessenger 2.1 is found on this machine")

                print("removing WinMessenger.......")

                install_location = os.popen('REG QUERY "%s" /v InstallLocation'%(i)).read().strip().split()[-1].strip()

                shutil.rmtree(os.path.expandvars(install_location),ignore_errors=True)

                print(os.popen('REG DELETE "%s" /f'%(i)).read())

                batch_script_path = os.path.join(os.environ["TEMP"], "currentuser.bat")

                with open(batch_script_path, "w") as f:

                    f.write(BatchScript)

                curusername = os.popen(batch_script_path).read().strip()

                users=os.popen("wmic UserAccount get Name").read().strip().splitlines()

                fil_users=[i.strip() for i in users if i.strip()!="Administrator" and i.strip()!="DefaultAccount" and i.strip()!="Guest" and i.strip()!="WDAGUtilityAccount"]

                if os.path.exists("C:\Users\%s\AppData\Roaming\VyPRESS\WinMessenger"%(curusername)):

                    shutil.rmtree("C:\Users\%s\AppData\Roaming\VyPRESS"%(curusername),ignore_errors=True)

                    sid = os.popen("wmic useraccount where name=\"%s\" get sid"%(curusername)).read().splitlines()[1].strip()

                    print(os.popen('REG DELETE "HKEY_USERS\%s\Software\VyPRESS" /f'%(sid)).read())

                    os.remove(batch_script_path)

                else:

                    fil_users.remove(curusername)

                    os.remove(batch_script_path)

                    flag = 0

                    for user in fil_users:

                        if os.path.exists("C:\Users\%s\AppData\Roaming\VyPRESS\WinMessenger"%(user)):

                            shutil.rmtree("C:\Users\%s\AppData\Roaming\VyPRESS"%(user),ignore_errors=True)

                            if os.path.exists("C:\\Users\\%s\\ntuser.dat"%(user)):

                                out,err = ('reg load "HKU\\%s" "C:\\Users\\%s\\ntuser.dat"'%(user,user))

                                if out:

                                    try:

                                        print(ecmd('REG DELETE "HKEY_USERS\%s\Software\VyPRESS" /f'%(user)))

                                        flag = 1

                                    except Exception as err:

                                        print(err)

                                    else:

                                        unLoad = os.popen('reg unload "HKU\\%s"'%(user)).read()

                                        if flag:

                                            break

                                else:

                                    print(err)

                print("successfully removed WinMessenger 2.1")

                break

        else:

            print("WinMessenger 2.1 is not found on this machine")

uninstall()

​