PUA.Win32.IOBit.O

April 15, 2025

Analysis by: Paolo Ronniel Labrador

ALIASES:

Riskware/Application (FORTINET)

PLATFORM:

Windows

OVERALL RISK RATING:

DAMAGE POTENTIAL:

DISTRIBUTION POTENTIAL:

REPORTED INFECTION:

INFORMATION EXPOSURE:

Threat Type: Potentially Unwanted Application
Destructiveness: No
Encrypted: No
In the wild: Yes

OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

TECHNICAL DETAILS

File Size: 16,495,982 bytes

File Type: EXE

Memory Resident: No

Initial Samples Received Date: 08 Apr 2025

Payload: Connects to URLs/IPs, Deletes files, Drops files

Arrival Details

This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Potentially Unwanted Application drops the following files:

%User Temp%\IObitUninstaller\LatestNews
%User Temp%\IObitUninstaller\update
%User Temp%\IObitUninstaller\!)清理残留.bat
%User Temp%\IObitUninstaller\Action Center\itop.png
%User Temp%\IObitUninstaller\AUpdate.exe
%User Temp%\IObitUninstaller\Database\AppRate.dbd
%User Temp%\IObitUninstaller\Database\FB.dbd
%User Temp%\IObitUninstaller\Database\PlugDB.dbd
%User Temp%\IObitUninstaller\Database\PSExt.dbd
%User Temp%\IObitUninstaller\Database\SBData.dbd
%User Temp%\IObitUninstaller\Database\sMarUpdateInfo.dbd
%User Temp%\IObitUninstaller\Database\SoftHealth.dbd
%User Temp%\IObitUninstaller\Database\SoftPM.dbd
%User Temp%\IObitUninstaller\Database\sUpdate.dbd
%User Temp%\IObitUninstaller\Database\UninstallRote.dbd
%User Temp%\IObitUninstaller\Database\uninstall_qdb.dbd
%User Temp%\IObitUninstaller\Database\usoft.dbd
%User Temp%\IObitUninstaller\datastate.dll
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IURegistryFilter.sys
%User Temp%\IObitUninstaller\DSPut.exe
%User Temp%\IObitUninstaller\filectl.dll
%User Temp%\IObitUninstaller\forcedelctl.dll
%User Temp%\IObitUninstaller\InfoHelp.dll
%User Temp%\IObitUninstaller\IObitUninstaler.exe
%User Temp%\IObitUninstaller\iush.exe
%User Temp%\IObitUninstaller\lang.dat
%User Temp%\IObitUninstaller\Language\English.lng
%User Temp%\IObitUninstaller\libcrypto-1_1.dll
%User Temp%\IObitUninstaller\libssl-1_1.dll
%User Temp%\IObitUninstaller\madbasic_.bpl
%User Temp%\IObitUninstaller\maddisAsm_.bpl
%User Temp%\IObitUninstaller\madexcept_.bpl
%User Temp%\IObitUninstaller\Main.ini
%User Temp%\IObitUninstaller\NoteIcon.exe
%User Temp%\IObitUninstaller\PluginHelper.dll
%User Temp%\IObitUninstaller\PPUninstaller.exe
%User Temp%\IObitUninstaller\ProductNews2.dll
%User Temp%\IObitUninstaller\RegisterCom.dll
%User Temp%\IObitUninstaller\rgfpctl.dll
%User Temp%\IObitUninstaller\rtl120.bpl
%User Temp%\IObitUninstaller\Skin\classic.dll
%User Temp%\IObitUninstaller\Skin\public.dll
%User Temp%\IObitUninstaller\Skin\white.dll
%User Temp%\IObitUninstaller\SpecUTool.exe
%User Temp%\IObitUninstaller\sqlite3.dll
%User Temp%\IObitUninstaller\SysRest.dll
%User Temp%\IObitUninstaller\vcl120.bpl
%User Temp%\IObitUninstaller\vclx120.bpl
%User Temp%\IObitUninstaller\webres.dll
%User Temp%\IObitUninstaller\winid.dat
%Application Data%\IObit\IObit Uninstaller\Main.ini
%Application Data%\IObit\IObit Uninstaller\Log\2025-04-14.dbg
%User Temp%\usoft.dbd
%Application Data%\IObit\IObit Uninstaller\PluginCache.ini
%Application Data%\IObit\IObit Uninstaller\BCleanerdb
%Application Data%\IObit\IObit Uninstaller\BCleanerdb-journal
%User Temp%\sUpdate.dbd
%Application Data%\IObit\IObit Uninstaller\DistrustPlugin.ini
%Application Data%\IObit\IObit Uninstaller\UninstallHistory.ini
%All Users Profile%\IObit\IObitRtt\IURtt.ept
%AppDataLocalLow%\IObit\AUpdate.ini
%Application Data%\IObit\PPMain.ini
%Application Data%\IObit\IObit Uninstaller\SoftwareCache.ini
%Temporary Internet Files%\Content.IE5\7KZJEKTK\active_month[1].php
%Application Data%\IObit\IObit Uninstaller\Main.ini
%User Temp%\IObitUninstaller\DS\DSConfig.ini
%User Temp%\IObitUninstaller\DS\DSNow.data
%Application Data%\IObit\IObit Uninstaller\DistrustPlugin.ini
%Application Data%\IObit\IObit Uninstaller\SHCatch.ini
%Application Data%\IObit\IObit Uninstaller\SoftwareHealth.ini
%User Temp%\SoftHealth.dbd
%Application Data%\IObit\PPMain.ini
%Application Data%\IObit\IObit Uninstaller\SHCatch.ini
%Application Data%\IObit\PPMain.ini

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %All Users Profile% is the common user's profile folder, which is usually C:\Documents and Settings\All Users on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit). . %AppDataLocalLow% is the LocalLow Application Data folder, which is usually C:\Users\{user name}\AppData\LocalLow on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Temporary Internet Files% is the Temporary Internet Files folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temporary Internet Files on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Microsoft\Windows\Temporary Internet Files on Windows Vista, 7 and 2008(64-bit), or C:\Users\{user name}\AppData\Local\Microsoft\Windows\INetCache on Windows 8, 8.1, 2012(64-bit) and 10(64-bit).)

It adds the following processes:

"%System%\cmd.exe" /c md "%Application Data%\IObit\IObit Uninstaller" & echo f|copy /y "%User Temp%\IObitUninstaller\Main.ini" "%Application Data%\IObit\IObit Uninstaller"
%System%\cmd.exe /S /D /c" echo f"
%System%\cmd.exe /S /D /c" copy /y "%User Temp%\IObitUninstaller\Main.ini" "%Application Data%\IObit\IObit Uninstaller" "
"%User Temp%\IObitUninstaller\IObitUninstaler.exe"
"%System%\regsvr32.exe" /s /u "%User Temp%\IObitUninstaller\IUMenuRight.dll"
"%User Temp%\IObitUninstaller\AUpdate.exe" /a un11 /p iobit /v 11.3.0.4 /t 4 /d 7 /un /user
"%User Temp%\IObitUninstaller\DSPut.exe"
"%User Temp%\IObitUninstaller\PPUninstaller.exe" /x
"%System%\cmd.exe" /c tasklist | find /i "IObitUninstaler.exe" || @pushd "%User Temp%\IObitUninstaller" >nul 2>&1 & CALL "%User Temp%\IObitUninstaller\!)清理残留.bat"
tasklist
find /i "IObitUninstaler.exe"
reg query "HKU\S-1-5-19"
taskkill /f /im IUService.exe
taskkill /f /im AutoUpdate.exe
taskkill /f /im PPUninstaller.exe
taskkill /f /im UninstallPromote.exe
taskkill /f /im UninstallMonitor.exe
net stop IObitUnSvr
%System%\net1 stop IObitUnSvr
sc delete IObitUnSvr
net stop IUFileFilter
%System%\net1 stop IUFileFilter
sc delete IUFileFilter
net stop IUProcessFilter
%System%\net1 stop IUProcessFilter
sc delete IUProcessFilter
net stop IURegistryFilter
%System%\net1 stop IURegistryFilter
sc delete IURegistryFilter
net stop "IObit Uninstaller Service"
%System%\net1 stop "IObit Uninstaller Service"
%System%\cmd.exe /S /D /c" ver"
findstr "5\.[0-9]\.[0-9][0-9]*"
%System%\cmd.exe /S /D /c" ver"
findstr "\<6\.[0-9]\.[0-9][0-9]*\> \<10\.[0-9]\.[0-9][0-9]*\>"
reg delete "HKLM\SOFTWARE\IObit\Uninstaller" /f
reg delete "HKLM\SOFTWARE\IObit\Uninstaller" /f /reg:32
reg delete "HKLM\SOFTWARE\Classes\AppID\PfShellExtension.DLL" /f
reg delete "HKCR\AppID\PfShellExtension.DLL" /f /reg:32
reg delete "HKCR\AppID\{59A55EF0-525F-4276-AB62-8F7E5F230399}" /f /reg:32
reg delete "HKCR\TypeLib\{DAF0374A-11AB-4E4E-B141-663E77D63E4C}" /f /reg:32
reg delete "HKLM\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\IObitUnstaler" /f
reg delete "HKLM\SOFTWARE\Classes\AppID\{59A55EF0-525F-4276-AB62-8F7E5F230399}" /f
reg delete "HKLM\SOFTWARE\Classes\CLSID\{10921475-03CE-4E04-90CE-E2E7EF20C814}" /f
reg delete "HKLM\SOFTWARE\Classes\CLSID\{836AB26C-2DE4-41D3-AC24-4C6C2699B960}" /f
reg delete "HKLM\SOFTWARE\Classes\CLSID\{8DE189EC-C9C8-4D31-9F18-E0B7407019A9}" /f
reg delete "HKLM\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\IObitUnstaler" /f
reg delete "HKLM\SOFTWARE\Classes\Folder\shellex\ContextMenuHandlers\IObitUnstaler" /f
reg delete "HKLM\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\IObitUnstaler" /f
reg delete "HKLM\SOFTWARE\Classes\TypeLib\{DAF0374A-11AB-4E4E-B141-663E77D63E4C}" /f
reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\IObitUninstall" /f
reg delete "HKLM\SOFTWARE\Classes\UninstallExplorer.ExplorerBtn" /f
reg delete "HKLM\SOFTWARE\Microsoft\Internet Explorer\Toolbar" /f /v "{10921475-03CE-4E04-90CE-E2E7EF20C814}"
reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{10921475-03CE-4E04-90CE-E2E7EF20C814}" /f
reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ControlPanel\NameSpace\{8DE189EC-C9C8-4D31-9F18-E0B7407019A9}" /f
reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved" /f /v "{836AB26C-2DE4-41D3-AC24-4C6C2699B960}"
TIMEOUT /t 3
"%System%\cmd.exe" /c tasklist | find /i "PPUninstaller.exe" || rd/s/q "%User Temp%\IObitUninstaller"
tasklist
find /i "PPUninstaller.exe"

Other System Modifications

This Potentially Unwanted Application deletes the following files:

%User Temp%\{random}.tmp
%Application Data%\IObit\IObit Uninstaller\BCleanerdb-journal
%Temporary Internet Files%\Content.IE5\7KZJEKTK\active_month[1].php
%User Temp%\SoftHealth.dbd
%User Temp%\sUpdate.dbd
%User Temp%\usoft.dbd
%Application Data%\IObit\IObit Uninstaller\BCleanerdb
%Application Data%\IObit\IObit Uninstaller\DistrustPlugin.ini
%Application Data%\IObit\IObit Uninstaller\Log\2025-04-14.dbg
%Application Data%\IObit\IObit Uninstaller\Main.ini
%Application Data%\IObit\IObit Uninstaller\PluginCache.ini
%Application Data%\IObit\IObit Uninstaller\SHCatch.ini
%Application Data%\IObit\IObit Uninstaller\SoftwareCache.ini
%Application Data%\IObit\IObit Uninstaller\SoftwareHealth.ini
%Application Data%\IObit\IObit Uninstaller\UninstallHistory.ini
%AppDataLocalLow%\IObit\AUpdate.ini
%All Users Profile%\IObit\IObitRtt\IURtt.ept
%User Temp%\IObitUninstaller\!)清理残留.bat
%User Temp%\IObitUninstaller\Action Center\itop.png
%User Temp%\IObitUninstaller\AUpdate.exe
%User Temp%\IObitUninstaller\Database\AppRate.dbd
%User Temp%\IObitUninstaller\Database\FB.dbd
%User Temp%\IObitUninstaller\Database\PlugDB.dbd
%User Temp%\IObitUninstaller\Database\PSExt.dbd
%User Temp%\IObitUninstaller\Database\SBData.dbd
%User Temp%\IObitUninstaller\Database\sMarUpdateInfo.dbd
%User Temp%\IObitUninstaller\Database\SoftHealth.dbd
%User Temp%\IObitUninstaller\Database\SoftPM.dbd
%User Temp%\IObitUninstaller\Database\sUpdate.dbd
%User Temp%\IObitUninstaller\Database\UninstallRote.dbd
%User Temp%\IObitUninstaller\Database\uninstall_qdb.dbd
%User Temp%\IObitUninstaller\Database\usoft.dbd
%User Temp%\IObitUninstaller\datastate.dll
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IURegistryFilter.sys
%User Temp%\IObitUninstaller\DS\DSConfig.ini
%User Temp%\IObitUninstaller\DS\DSNow.data
%User Temp%\IObitUninstaller\DSPut.exe
%User Temp%\IObitUninstaller\filectl.dll
%User Temp%\IObitUninstaller\forcedelctl.dll
%User Temp%\IObitUninstaller\InfoHelp.dll
%User Temp%\IObitUninstaller\IObitUninstaler.exe
%User Temp%\IObitUninstaller\iush.exe
%User Temp%\IObitUninstaller\lang.dat
%User Temp%\IObitUninstaller\Language\English.lng
%User Temp%\IObitUninstaller\LatestNews
%User Temp%\IObitUninstaller\libcrypto-1_1.dll
%User Temp%\IObitUninstaller\libssl-1_1.dll
%User Temp%\IObitUninstaller\madbasic_.bpl
%User Temp%\IObitUninstaller\maddisAsm_.bpl
%User Temp%\IObitUninstaller\madexcept_.bpl
%User Temp%\IObitUninstaller\Main.ini
%User Temp%\IObitUninstaller\NoteIcon.exe
%User Temp%\IObitUninstaller\PluginHelper.dll
%User Temp%\IObitUninstaller\PPUninstaller.exe
%User Temp%\IObitUninstaller\ProductNews2.dll
%User Temp%\IObitUninstaller\RegisterCom.dll
%User Temp%\IObitUninstaller\rgfpctl.dll
%User Temp%\IObitUninstaller\rtl120.bpl
%User Temp%\IObitUninstaller\Skin\classic.dll
%User Temp%\IObitUninstaller\Skin\public.dll
%User Temp%\IObitUninstaller\Skin\white.dll
%User Temp%\IObitUninstaller\SpecUTool.exe
%User Temp%\IObitUninstaller\sqlite3.dll
%User Temp%\IObitUninstaller\SysRest.dll
%User Temp%\IObitUninstaller\update
%User Temp%\IObitUninstaller\vcl120.bpl
%User Temp%\IObitUninstaller\vclx120.bpl
%User Temp%\IObitUninstaller\webres.dll
%User Temp%\IObitUninstaller\winid.dat

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Temporary Internet Files% is the Temporary Internet Files folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temporary Internet Files on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Microsoft\Windows\Temporary Internet Files on Windows Vista, 7 and 2008(64-bit), or C:\Users\{user name}\AppData\Local\Microsoft\Windows\INetCache on Windows 8, 8.1, 2012(64-bit) and 10(64-bit).. %AppDataLocalLow% is the LocalLow Application Data folder, which is usually C:\Users\{user name}\AppData\LocalLow on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %All Users Profile% is the common user's profile folder, which is usually C:\Documents and Settings\All Users on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit). )

It deletes the following folders:

%User Temp%\IObitUninstaler.madExcept
%User Temp%\AUpdate.madExcept
%User Temp%\DSPut.madExcept
%User Temp%\PPUninstaller.madExcept
%Application Data%\IObit\IObit Uninstaller\Log
%Application Data%\IObit\IObit Uninstaller
%Program Files%\COMMON FILES\IObit\IObit Uninstaller
%Program Files%\COMMON FILES\IObit
%AppDataLocalLow%\IObit
%All Users Profile%\IObit\IObit Uninstaller\Downloader
%All Users Profile%\IObit\IObit Uninstaller
%All Users Profile%\IObit\IObitRtt
%All Users Profile%\IObit
%User Temp%\IObitUninstaller\Action Center
%User Temp%\IObitUninstaller\Database
%User Temp%\IObitUninstaller\Drivers\win10_amd64
%User Temp%\IObitUninstaller\Drivers\win10_ia64
%User Temp%\IObitUninstaller\Drivers\win10_x86
%User Temp%\IObitUninstaller\Drivers\win7_amd64
%User Temp%\IObitUninstaller\Drivers\win7_ia64
%User Temp%\IObitUninstaller\Drivers\win7_x86
%User Temp%\IObitUninstaller\Drivers
%User Temp%\IObitUninstaller\DS
%User Temp%\IObitUninstaller\Language
%User Temp%\IObitUninstaller\Skin
%User Temp%\IObitUninstaller

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %AppDataLocalLow% is the LocalLow Application Data folder, which is usually C:\Users\{user name}\AppData\LocalLow on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %All Users Profile% is the common user's profile folder, which is usually C:\Documents and Settings\All Users on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit). )

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\IObit\
Uninstaller
Status = 4

HKEY_LOCAL_MACHINE\SOFTWARE\IObit\
Uninstaller
Verification = {hexadecimal values}

It deletes the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\IObit\
Uninstaller

Download Routine

This Potentially Unwanted Application connects to the following URL(s) to download its component file(s):

http://{BLOCKED}obit.com/active_month.php?app=un11&pr=iobit&ver=11.3.0.4&uid=B1B474A8BC2E4B26A77DC3ACFEEACAFF&type=4&actv=0&ln=en-US&os=61&user=1&insur=other

It saves the files it downloads using the following names:

%Temporary Internet Files%\Content.IE5\7KZJEKTK\active_month[1].php

(Note: %Temporary Internet Files% is the Temporary Internet Files folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temporary Internet Files on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Microsoft\Windows\Temporary Internet Files on Windows Vista, 7 and 2008(64-bit), or C:\Users\{user name}\AppData\Local\Microsoft\Windows\INetCache on Windows 8, 8.1, 2012(64-bit) and 10(64-bit).)

Other Details

This Potentially Unwanted Application adds the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\IObit

HKLM\SOFTWARE\IObit\
Uninstaller

It does the following:

It is capable of uninstalling applications.

SOLUTION

Minimum Scan Engine: 9.800

SSAPI PATTERN File: 2.827.00

SSAPI PATTERN Date: 17 Apr 2025

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Delete this registry key

[ Learn More ]

=Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator’s help. You may also check out this Microsoft article first before modifying your computer's registry.

In HKEY_LOCAL_MACHINE\SOFTWARE\IObit

Step 4

Search and delete these files

[ Learn More ]

There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.

%All Users Profile%\IObit\IObitRtt\IURtt.ept
%AppDataLocalLow%\IObit\AUpdate.ini
%Application Data%\IObit\IObit Uninstaller\BCleanerdb
%Application Data%\IObit\IObit Uninstaller\BCleanerdb-journal
%Application Data%\IObit\IObit Uninstaller\DistrustPlugin.ini
%Application Data%\IObit\IObit Uninstaller\Log\2025-04-14.dbg
%Application Data%\IObit\IObit Uninstaller\Main.ini
%Application Data%\IObit\IObit Uninstaller\PluginCache.ini
%Application Data%\IObit\IObit Uninstaller\SHCatch.ini
%Application Data%\IObit\IObit Uninstaller\SoftwareCache.ini
%Application Data%\IObit\IObit Uninstaller\SoftwareHealth.ini
%Application Data%\IObit\IObit Uninstaller\UninstallHistory.ini
%Application Data%\IObit\PPMain.ini
%Temporary Internet Files%\Content.IE5\7KZJEKTK\active_month[1].php
%User Temp%\{random}.tmp
%User Temp%\IObitUninstaller\!)清理残留.bat
%User Temp%\IObitUninstaller\Action Center\itop.png
%User Temp%\IObitUninstaller\AUpdate.exe
%User Temp%\IObitUninstaller\Database\AppRate.dbd
%User Temp%\IObitUninstaller\Database\FB.dbd
%User Temp%\IObitUninstaller\Database\PlugDB.dbd
%User Temp%\IObitUninstaller\Database\PSExt.dbd
%User Temp%\IObitUninstaller\Database\SBData.dbd
%User Temp%\IObitUninstaller\Database\sMarUpdateInfo.dbd
%User Temp%\IObitUninstaller\Database\SoftHealth.dbd
%User Temp%\IObitUninstaller\Database\SoftPM.dbd
%User Temp%\IObitUninstaller\Database\sUpdate.dbd
%User Temp%\IObitUninstaller\Database\uninstall_qdb.dbd
%User Temp%\IObitUninstaller\Database\UninstallRote.dbd
%User Temp%\IObitUninstaller\Database\usoft.dbd
%User Temp%\IObitUninstaller\datastate.dll
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IURegistryFilter.sys
%User Temp%\IObitUninstaller\DS\DSConfig.ini
%User Temp%\IObitUninstaller\DS\DSNow.data
%User Temp%\IObitUninstaller\DSPut.exe
%User Temp%\IObitUninstaller\filectl.dll
%User Temp%\IObitUninstaller\forcedelctl.dll
%User Temp%\IObitUninstaller\InfoHelp.dll
%User Temp%\IObitUninstaller\IObitUninstaler.exe
%User Temp%\IObitUninstaller\iush.exe
%User Temp%\IObitUninstaller\lang.dat
%User Temp%\IObitUninstaller\Language\English.lng
%User Temp%\IObitUninstaller\LatestNews
%User Temp%\IObitUninstaller\libcrypto-1_1.dll
%User Temp%\IObitUninstaller\libssl-1_1.dll
%User Temp%\IObitUninstaller\madbasic_.bpl
%User Temp%\IObitUninstaller\maddisAsm_.bpl
%User Temp%\IObitUninstaller\madexcept_.bpl
%User Temp%\IObitUninstaller\Main.ini
%User Temp%\IObitUninstaller\NoteIcon.exe
%User Temp%\IObitUninstaller\PluginHelper.dll
%User Temp%\IObitUninstaller\PPUninstaller.exe
%User Temp%\IObitUninstaller\ProductNews2.dll
%User Temp%\IObitUninstaller\RegisterCom.dll
%User Temp%\IObitUninstaller\rgfpctl.dll
%User Temp%\IObitUninstaller\rtl120.bpl
%User Temp%\IObitUninstaller\Skin\classic.dll
%User Temp%\IObitUninstaller\Skin\public.dll
%User Temp%\IObitUninstaller\Skin\white.dll
%User Temp%\IObitUninstaller\SpecUTool.exe
%User Temp%\IObitUninstaller\sqlite3.dll
%User Temp%\IObitUninstaller\SysRest.dll
%User Temp%\IObitUninstaller\update
%User Temp%\IObitUninstaller\vcl120.bpl
%User Temp%\IObitUninstaller\vclx120.bpl
%User Temp%\IObitUninstaller\webres.dll
%User Temp%\IObitUninstaller\winid.dat
%User Temp%\SoftHealth.dbd
%User Temp%\sUpdate.dbd
%User Temp%\usoft.dbd

To delete malware/grayware files:

For Windows 7 and Server 2008 (R2), 8, 8.1, 10, and Server 2012 (R2):

Open a Windows Explorer window.
- For Windows 7 and Server 2008 (R2) users, click Start>Computer.
- For Windows 8, 8.1, 10, and Server 2012 users, right-click on the lower left corner of the screen, then click File Explorer.
In the Search Computer/This PC input box, type:
%All Users Profile%\IObit\IObitRtt\IURtt.ept
%AppDataLocalLow%\IObit\AUpdate.ini
%Application Data%\IObit\IObit Uninstaller\BCleanerdb
%Application Data%\IObit\IObit Uninstaller\BCleanerdb-journal
%Application Data%\IObit\IObit Uninstaller\DistrustPlugin.ini
%Application Data%\IObit\IObit Uninstaller\Log\2025-04-14.dbg
%Application Data%\IObit\IObit Uninstaller\Main.ini
%Application Data%\IObit\IObit Uninstaller\PluginCache.ini
%Application Data%\IObit\IObit Uninstaller\SHCatch.ini
%Application Data%\IObit\IObit Uninstaller\SoftwareCache.ini
%Application Data%\IObit\IObit Uninstaller\SoftwareHealth.ini
%Application Data%\IObit\IObit Uninstaller\UninstallHistory.ini
%Application Data%\IObit\PPMain.ini
%Temporary Internet Files%\Content.IE5\7KZJEKTK\active_month[1].php
%User Temp%\{random}.tmp
%User Temp%\IObitUninstaller\!)清理残留.bat
%User Temp%\IObitUninstaller\Action Center\itop.png
%User Temp%\IObitUninstaller\AUpdate.exe
%User Temp%\IObitUninstaller\Database\AppRate.dbd
%User Temp%\IObitUninstaller\Database\FB.dbd
%User Temp%\IObitUninstaller\Database\PlugDB.dbd
%User Temp%\IObitUninstaller\Database\PSExt.dbd
%User Temp%\IObitUninstaller\Database\SBData.dbd
%User Temp%\IObitUninstaller\Database\sMarUpdateInfo.dbd
%User Temp%\IObitUninstaller\Database\SoftHealth.dbd
%User Temp%\IObitUninstaller\Database\SoftPM.dbd
%User Temp%\IObitUninstaller\Database\sUpdate.dbd
%User Temp%\IObitUninstaller\Database\uninstall_qdb.dbd
%User Temp%\IObitUninstaller\Database\UninstallRote.dbd
%User Temp%\IObitUninstaller\Database\usoft.dbd
%User Temp%\IObitUninstaller\datastate.dll
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_amd64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_ia64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win10_x86\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_amd64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_ia64\IURegistryFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUFileFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUForceDelete.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IUProcessFilter.sys
%User Temp%\IObitUninstaller\Drivers\win7_x86\IURegistryFilter.sys
%User Temp%\IObitUninstaller\DS\DSConfig.ini
%User Temp%\IObitUninstaller\DS\DSNow.data
%User Temp%\IObitUninstaller\DSPut.exe
%User Temp%\IObitUninstaller\filectl.dll
%User Temp%\IObitUninstaller\forcedelctl.dll
%User Temp%\IObitUninstaller\InfoHelp.dll
%User Temp%\IObitUninstaller\IObitUninstaler.exe
%User Temp%\IObitUninstaller\iush.exe
%User Temp%\IObitUninstaller\lang.dat
%User Temp%\IObitUninstaller\Language\English.lng
%User Temp%\IObitUninstaller\LatestNews
%User Temp%\IObitUninstaller\libcrypto-1_1.dll
%User Temp%\IObitUninstaller\libssl-1_1.dll
%User Temp%\IObitUninstaller\madbasic_.bpl
%User Temp%\IObitUninstaller\maddisAsm_.bpl
%User Temp%\IObitUninstaller\madexcept_.bpl
%User Temp%\IObitUninstaller\Main.ini
%User Temp%\IObitUninstaller\NoteIcon.exe
%User Temp%\IObitUninstaller\PluginHelper.dll
%User Temp%\IObitUninstaller\PPUninstaller.exe
%User Temp%\IObitUninstaller\ProductNews2.dll
%User Temp%\IObitUninstaller\RegisterCom.dll
%User Temp%\IObitUninstaller\rgfpctl.dll
%User Temp%\IObitUninstaller\rtl120.bpl
%User Temp%\IObitUninstaller\Skin\classic.dll
%User Temp%\IObitUninstaller\Skin\public.dll
%User Temp%\IObitUninstaller\Skin\white.dll
%User Temp%\IObitUninstaller\SpecUTool.exe
%User Temp%\IObitUninstaller\sqlite3.dll
%User Temp%\IObitUninstaller\SysRest.dll
%User Temp%\IObitUninstaller\update
%User Temp%\IObitUninstaller\vcl120.bpl
%User Temp%\IObitUninstaller\vclx120.bpl
%User Temp%\IObitUninstaller\webres.dll
%User Temp%\IObitUninstaller\winid.dat
%User Temp%\SoftHealth.dbd
%User Temp%\sUpdate.dbd
%User Temp%\usoft.dbd
Once located, select the file then press SHIFT+DELETE to delete it.
Repeat the said steps for all files listed.
*Note: Read the following Microsoft page if these steps do not work on Windows 7 and Server 2008 (R2).

Step 5

Search and delete this folder

[ Learn More ]

Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.

%All Users Profile%\IObit
%All Users Profile%\IObit\IObit Uninstaller
%All Users Profile%\IObit\IObit Uninstaller\Downloader
%All Users Profile%\IObit\IObitRtt
%AppDataLocalLow%\IObit
%Application Data%\IObit\IObit Uninstaller
%Application Data%\IObit\IObit Uninstaller\Log
%Program Files%\COMMON FILES\IObit
%Program Files%\COMMON FILES\IObit\IObit Uninstaller
%User Temp%\AUpdate.madExcept
%User Temp%\DSPut.madExcept
%User Temp%\IObitUninstaler.madExcept
%User Temp%\IObitUninstaller
%User Temp%\IObitUninstaller\Action Center
%User Temp%\IObitUninstaller\Database
%User Temp%\IObitUninstaller\Drivers
%User Temp%\IObitUninstaller\Drivers\win10_amd64
%User Temp%\IObitUninstaller\Drivers\win10_ia64
%User Temp%\IObitUninstaller\Drivers\win10_x86
%User Temp%\IObitUninstaller\Drivers\win7_amd64
%User Temp%\IObitUninstaller\Drivers\win7_ia64
%User Temp%\IObitUninstaller\Drivers\win7_x86
%User Temp%\IObitUninstaller\DS
%User Temp%\IObitUninstaller\Language
%User Temp%\IObitUninstaller\Skin
%User Temp%\PPUninstaller.madExcept

Step 6

Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.IOBit.O. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:

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PUA.Win32.IOBit.O

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