PUA.Win32.DriverUpdater.AO

February 04, 2020

PLATFORM:

Windows

OVERALL RISK RATING:

REPORTED INFECTION:

SYSTEM IMPACT RATING:

INFORMATION EXPOSURE:

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

OVERVIEW

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: 2,339,616 bytes

File Type: EXE

Memory Resident: Yes

Initial Samples Received Date: 04 Feb 2020

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 adds the following processes:

"%User Temp%\is-8KOSB.tmp\61877b939fa49719f64bccff16f06448ab294640.tmp" /SL5="$2016C,1826362,139264,{malware file path and name}"
taskkill.exe /f /im DriverUpdaterM.exe
"schtasks" /Create /F /SC HOURLY /MO 3 /TN "dupVersionUpdate" /RL HIGHEST /TR "\"%Program Files%\Monterix\Driver Updater\DriverUpdaterM.exe\" /checkupdates
"powershell" -Command "Set-ScheduledTask -TaskName 'dupVersionUpdate' -Trigger (New-JobTrigger -AtLogon -RandomDelay 00:10:00),(New-JobTrigger -Once -RepetitionInterval 03:00:00 -RepeatIndefinitely -At (Get-Date))"
http://www.{BLOCKED}updater.software/install/00000000/
"%Program Files%\Monterix\Driver Updater\DriverUpdaterM.exe" /as /waitpar
"%User Temp%\is-3CJRB.tmp\PCCleanerInst_00000000.exe" /VERYSILENT /DENYINSP /INSTOFFERRUN
"%Program Files%\Internet Explorer\IEXPLORE.EXE" SCODEF:2608 CREDAT:275457 /prefetch:2
"%User Temp%\is-E290H.tmp\PCCleanerInst_00000000.tmp" /SL5="$4021A,3984894,139264,%User Temp%\is-3CJRB.tmp\PCCleanerInst_00000000.exe" /VERYSILENT /DENYINSP /INSTOFFERRUN
taskkill.exe /f /im PCCleanerLite.exe
"schtasks" /Create /F /SC HOURLY /MO 3 /TN "skpVersionUpdate" /RL HIGHEST /TR "\"%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe\" /checkupdates
"powershell" -Command "Set-ScheduledTask -TaskName 'skpVersionUpdate' -Trigger (New-JobTrigger -AtLogon -RandomDelay 00:10:00),(New-JobTrigger -Once -RepetitionInterval 03:00:00 -RepeatIndefinitely -At (Get-Date))"
"%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe" /ot /ofr /as /waitpar
schtasks /Query /TN "skpVersionUpdate

It creates the following folders:

%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active
%User Temp%\is-E48SN.tmp\_isetup
%User Temp%\dup
%Program Files%\Monterix
%Application Data%\Microsoft\Windows\DNTException
%Application Data%\Microsoft\Windows\IECompatCache
%Program Files%\Monterix\PC Cleaner
%Program Files%\Monterix\Driver Updater
%Application Data%\Microsoft\Windows\IECompatUACache
%Application Data%\Microsoft\Windows\PrivacIE
%User Temp%\is-3CJRB.tmp\_isetup
%Application Data%\skp
%User Temp%\skp

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

Autostart Technique

This Potentially Unwanted Application adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
PC Cleaner Lite = "%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe /ot"

Other System Modifications

This Potentially Unwanted Application deletes the following files:

%System Root%\Users\Public\Desktop\Driver Updater.pif
%System Root%\Users\Public\Desktop\Driver Updater.url
%Start Menu%\PC Cleaner.pif
%Start Menu%\PC Cleaner.url
%System Root%\Users\Public\Desktop\PC Cleaner.url
%Start Menu%\Driver Updater.pif
%Start Menu%\Driver Updater.url
%System Root%\Users\Public\Desktop\PC Cleaner.pif

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000
Owner = "\x90\x04\x00\x00\xe5\xeaKC\xd5\x01"

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000
SessionHash = "{random characters}"

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000
Sequence = "1"

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000
RegFiles0000 = "\x00"

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000
RegFilesHash = "{random characters}"

HKEY_CURRENT_USER\Software\Monterix\
DriverUpdaterEx
Partner = "00000000"

HKEY_CURRENT_USER\Software\Monterix\
DriverUpdaterEx
AffSubId = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
Inno Setup: Setup Version = "5.5.9 (u)"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
Inno Setup: App Path = "%Program Files%\Monterix\Driver Updater"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
InstallLocation = "%Program Files%\Monterix\Driver Updater"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
Inno Setup: Icon Group = "Monterix\Driver Updater"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
Inno Setup: User = "{username}"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
Inno Setup: Language = "english"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
DisplayName = "Driver Updater"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
DisplayIcon = "%Program Files%\Monterix\Driver Updater\unins000.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
UninstallString = "%Program Files%\Monterix\Driver Updater\unins000.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
QuietUninstallString = "%Program Files%\Monterix\Driver Updater\unins000.exe /SILENT"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
DisplayVersion = "11.2.0.69"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
Publisher = "Monterix Software LLC"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
URLInfoAbout = "http://www.{BLOCKED}updater.software"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
HelpLink = "http://www.{BLOCKED}updater.software"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
URLUpdateInfo = "http://www.{BLOCKED}updater.software"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
NoRepair = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
InstallDate = "20191006"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
MajorVersion = "11"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
MinorVersion = "2"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
VersionMajor = "11"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
VersionMinor = "2"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
EstimatedSize = "7330"

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000
Owner = "\xd0\x02\x00\x00\x19MEmC\xd5\x01"

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000
RegFilesHash = "n\x8b\x98\xb6\x9d K\xb0YW\xa5!\x81Oh\x0b\xc3B|w\x19B\x95G\x1e\xfe\xb4\x13\x19./:"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
Partner = "00000000"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
AffSubId = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
Inno Setup: Setup Version = "5.5.9 (u)"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
Inno Setup: App Path = "%Program Files%\Monterix\PC Cleaner"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
InstallLocation = "%Program Files%\Monterix\PC Cleaner"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
Inno Setup: Icon Group = "Monterix\PC Cleaner"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
Inno Setup: User = "{username}"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
Inno Setup: Language = "english"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
DisplayName = "PC Cleaner"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
DisplayIcon = "%Program Files%\Monterix\PC Cleaner\unins000.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
UninstallString = "%Program Files%\Monterix\PC Cleaner\unins000.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
QuietUninstallString = "%Program Files%\Monterix\PC Cleaner\unins000.exe /SILENT"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
DisplayVersion = "12.4.0.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
Publisher = "Monterix Technology LLC"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
URLInfoAbout = "http://www.{BLOCKED}ner.software"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
HelpLink = "http://www.{BLOCKED}ner.software"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
URLUpdateInfo = "http://www.{BLOCKED}ner.software"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
NoRepair = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
InstallDate = "20191006"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
MajorVersion = "12"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
MinorVersion = "4"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
VersionMajor = "12"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
VersionMinor = "4"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
EstimatedSize = "10951"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
CloseToTray = "1"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
AutoRun = "1"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
ShowTrayHints = "1"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
AppPath = "%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
InstallID = "a43bdf0f91521a055a52d2e6a2a787a5"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
SerialNum = ""

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
IDLang = "1"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
FirstRunDatei = "w\x19\xf1\x18\xe5@"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
LastScanDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
LastFixDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
LastTrayMsgDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
ErrFound = "0"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
ErrFixed = "0"

HKEY_CURRENT_USER\Software\Monterix\
PCCleanerLite
flag_cind = "0"

It deletes the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000\RegFilesHash

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000\RegFiles0000

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000\Sequence

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000\SessionHash

HKEY_CURRENT_USER\Software\Microsoft\
RestartManager\Session0000\Owner

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Ext\
Settings\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}\NewInstallPromptCount

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Ext\
Settings\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}\CompatBlockPromptCount

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Ext\
Settings\{761497BB-D6F0-462C-B6EB-D4DAF1D92D43}\NewInstallPromptCount

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Ext\
Settings\{761497BB-D6F0-462C-B6EB-D4DAF1D92D43}\CompatBlockPromptCount

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Ext\
Settings\{DBC80044-A445-435B-BC74-9C25C1C588A9}\NewInstallPromptCount

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Ext\
Settings\{DBC80044-A445-435B-BC74-9C25C1C588A9}\CompatBlockPromptCount

Dropping Routine

This Potentially Unwanted Application drops the following files:

%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{A3EA47AB-E836-11E9-9178-005056BC4DBC}.dat
%Program Files%\Monterix\PC Cleaner\is-1B3LR.tmp
%Program Files%\Monterix\PC Cleaner\unins000.exe
%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe
%Program Files%\Monterix\Driver Updater\unins000.msg
%Program Files%\Monterix\Driver Updater\unins000.exe
%Program Files%\Monterix\PC Cleaner\aff.txt
%User Temp%\is-3CJRB.tmp\offer_ico.bmp
%User Temp%\is-3CJRB.tmp\PCCleanerInst_00000000.exe
%Program Files%\Monterix\PC Cleaner\unins000.dat
%Program Files%\Monterix\PC Cleaner\is-3GMEL.tmp
%Program Files%\Monterix\Driver Updater\is-J5PB6.tmp
%Start Menu%\Driver Updater.lnk
%Program Files%\Monterix\Driver Updater\aff.txt
%Start Menu%\PC Cleaner.lnk
%User Temp%\is-E48SN.tmp\offer_ico.bmp
%Program Files%\Monterix\Driver Updater\is-PMA1B.tmp
%Program Files%\Monterix\Driver Updater\is-1A8JK.tmp
%Program Files%\Monterix\PC Cleaner\is-NGIVH.tmp
%Program Files%\Monterix\Driver Updater\DriverUpdaterM.exe
%System Root%\Users\Public\Desktop\PC Cleaner.lnk
%Program Files%\Monterix\Driver Updater\unins000.dat
%Program Files%\Monterix\PC Cleaner\unins000.msg
%System Root%\Users\Public\Desktop\Driver Updater.lnk

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local 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).. %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).. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

Other Details

This Potentially Unwanted Application connects to the following possibly malicious URL:

http://dl.{BLOCKED}ner.software/distr/skp/00000000/PCCleanerInst_00000000.exe
http://go.{BLOCKED}oft.com
http://www.{BLOCKED}updater.software

This report is generated via an automated analysis system.

SOLUTION

Minimum Scan Engine: 9.850

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

Restart in Safe Mode

[ Learn More ]

Step 3

Identify and terminate files detected as PUA.Win32.DriverUpdater.AO

[ Learn More ]

Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 4

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- PC Cleaner Lite = "%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe /ot"

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- Owner = "\x90\x04\x00\x00\xe5\xeaKC\xd5\x01"

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- SessionHash = "{random characters}"

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- Sequence = "1"

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- RegFiles0000 = "\x00"

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- RegFilesHash = "{random characters}"

In HKEY_CURRENT_USER\Software\Monterix\DriverUpdaterEx
- Partner = "00000000"

In HKEY_CURRENT_USER\Software\Monterix\DriverUpdaterEx
- AffSubId = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- Inno Setup: Setup Version = "5.5.9 (u)"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- Inno Setup: App Path = "%Program Files%\Monterix\Driver Updater"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- InstallLocation = "%Program Files%\Monterix\Driver Updater"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- Inno Setup: Icon Group = "Monterix\Driver Updater"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- Inno Setup: User = "{username}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- Inno Setup: Language = "english"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- DisplayName = "Driver Updater"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- DisplayIcon = "%Program Files%\Monterix\Driver Updater\unins000.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- UninstallString = "%Program Files%\Monterix\Driver Updater\unins000.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- QuietUninstallString = "%Program Files%\Monterix\Driver Updater\unins000.exe /SILENT"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- DisplayVersion = "11.2.0.69"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- Publisher = "Monterix Software LLC"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- URLInfoAbout = "http://www.{BLOCKED}updater.software"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- HelpLink = "http://www.{BLOCKED}updater.software"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- URLUpdateInfo = "http://www.{BLOCKED}updater.software"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- NoModify = "1"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- NoRepair = "1"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- InstallDate = "20191006"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- MajorVersion = "11"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- MinorVersion = "2"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- VersionMajor = "11"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- VersionMinor = "2"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
- EstimatedSize = "7330"

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- Owner = "\xd0\x02\x00\x00\x19MEmC\xd5\x01"

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- RegFilesHash = "n\x8b\x98\xb6\x9d K\xb0YW\xa5!\x81Oh\x0b\xc3B|w\x19B\x95G\x1e\xfe\xb4\x13\x19./:"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- Partner = "00000000"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- AffSubId = ""

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- Inno Setup: Setup Version = "5.5.9 (u)"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- Inno Setup: App Path = "%Program Files%\Monterix\PC Cleaner"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- InstallLocation = "%Program Files%\Monterix\PC Cleaner"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- Inno Setup: Icon Group = "Monterix\PC Cleaner"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- Inno Setup: User = "{username}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- Inno Setup: Language = "english"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- DisplayName = "PC Cleaner"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- DisplayIcon = "%Program Files%\Monterix\PC Cleaner\unins000.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- UninstallString = "%Program Files%\Monterix\PC Cleaner\unins000.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- QuietUninstallString = "%Program Files%\Monterix\PC Cleaner\unins000.exe /SILENT"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- DisplayVersion = "12.4.0.1"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- Publisher = "Monterix Technology LLC"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- URLInfoAbout = "http://www.{BLOCKED}ner.software"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- HelpLink = "http://www.{BLOCKED}ner.software"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- URLUpdateInfo = "http://www.{BLOCKED}ner.software"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- NoModify = "1"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- NoRepair = "1"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- InstallDate = "20191006"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- MajorVersion = "12"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- MinorVersion = "4"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- VersionMajor = "12"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- VersionMinor = "4"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
- EstimatedSize = "10951"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- CloseToTray = "1"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- AutoRun = "1"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- ShowTrayHints = "1"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- AppPath = "%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- InstallID = "a43bdf0f91521a055a52d2e6a2a787a5"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- SerialNum = ""

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- IDLang = "1"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- FirstRunDatei = "w\x19\xf1\x18\xe5@"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- LastScanDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- LastFixDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- LastTrayMsgDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- ErrFound = "0"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- ErrFixed = "0"

In HKEY_CURRENT_USER\Software\Monterix\PCCleanerLite
- flag_cind = "0"

To delete the registry value this malware/grayware created:

Open Registry Editor.
» For Windows 7 and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, Windows 8.1, Windows 10, and Windows Server 2012 (R2) users, right-click on the lower-left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
PC Cleaner Lite = "%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe /ot"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>RestartManager>Session0000
In the right panel, locate and delete the entry:
Owner = "\x90\x04\x00\x00\xe5\xeaKC\xd5\x01"
Again In the right panel, locate and delete the entry:
SessionHash = "{random characters}"
Again In the right panel, locate and delete the entry:
Sequence = "1"
Again In the right panel, locate and delete the entry:
RegFiles0000 = "\x00"
Again In the right panel, locate and delete the entry:
RegFilesHash = "{random characters}"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Monterix>DriverUpdaterEx
In the right panel, locate and delete the entry:
Partner = "00000000"
Again In the right panel, locate and delete the entry:
AffSubId = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Windows>CurrentVersion>Uninstall>{2329B0B1-00B8-459B-9F68-66831E4FFF47}_is1
In the right panel, locate and delete the entry:
Inno Setup: Setup Version = "5.5.9 (u)"
Again In the right panel, locate and delete the entry:
Inno Setup: App Path = "%Program Files%\Monterix\Driver Updater"
Again In the right panel, locate and delete the entry:
InstallLocation = "%Program Files%\Monterix\Driver Updater"
Again In the right panel, locate and delete the entry:
Inno Setup: Icon Group = "Monterix\Driver Updater"
Again In the right panel, locate and delete the entry:
Inno Setup: User = "{username}"
Again In the right panel, locate and delete the entry:
Inno Setup: Language = "english"
Again In the right panel, locate and delete the entry:
DisplayName = "Driver Updater"
Again In the right panel, locate and delete the entry:
DisplayIcon = "%Program Files%\Monterix\Driver Updater\unins000.exe"
Again In the right panel, locate and delete the entry:
UninstallString = "%Program Files%\Monterix\Driver Updater\unins000.exe"
Again In the right panel, locate and delete the entry:
QuietUninstallString = "%Program Files%\Monterix\Driver Updater\unins000.exe /SILENT"
Again In the right panel, locate and delete the entry:
DisplayVersion = "11.2.0.69"
Again In the right panel, locate and delete the entry:
Publisher = "Monterix Software LLC"
Again In the right panel, locate and delete the entry:
URLInfoAbout = "http://www.{BLOCKED}updater.software"
Again In the right panel, locate and delete the entry:
HelpLink = "http://www.{BLOCKED}updater.software"
Again In the right panel, locate and delete the entry:
URLUpdateInfo = "http://www.{BLOCKED}updater.software"
Again In the right panel, locate and delete the entry:
NoModify = "1"
Again In the right panel, locate and delete the entry:
NoRepair = "1"
Again In the right panel, locate and delete the entry:
InstallDate = "20191006"
Again In the right panel, locate and delete the entry:
MajorVersion = "11"
Again In the right panel, locate and delete the entry:
MinorVersion = "2"
Again In the right panel, locate and delete the entry:
VersionMajor = "11"
Again In the right panel, locate and delete the entry:
VersionMinor = "2"
Again In the right panel, locate and delete the entry:
EstimatedSize = "7330"
Again In the right panel, locate and delete the entry:
Owner = "\xd0\x02\x00\x00\x19MEmC\xd5\x01"
Again In the right panel, locate and delete the entry:
RegFilesHash = "n\x8b\x98\xb6\x9d K\xb0YW\xa5!\x81Oh\x0b\xc3B|w\x19B\x95G\x1e\xfe\xb4\x13\x19./:"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Monterix>PCCleanerLite
In the right panel, locate and delete the entry:
Partner = "00000000"
Again In the right panel, locate and delete the entry:
AffSubId = ""
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Windows>CurrentVersion>Uninstall>{1AE5D9FC-B286-4C02-B5DA-B14E26EFC9A6}_is1
In the right panel, locate and delete the entry:
Inno Setup: Setup Version = "5.5.9 (u)"
Again In the right panel, locate and delete the entry:
Inno Setup: App Path = "%Program Files%\Monterix\PC Cleaner"
Again In the right panel, locate and delete the entry:
InstallLocation = "%Program Files%\Monterix\PC Cleaner"
Again In the right panel, locate and delete the entry:
Inno Setup: Icon Group = "Monterix\PC Cleaner"
Again In the right panel, locate and delete the entry:
Inno Setup: User = "{username}"
Again In the right panel, locate and delete the entry:
Inno Setup: Language = "english"
Again In the right panel, locate and delete the entry:
DisplayName = "PC Cleaner"
Again In the right panel, locate and delete the entry:
DisplayIcon = "%Program Files%\Monterix\PC Cleaner\unins000.exe"
Again In the right panel, locate and delete the entry:
UninstallString = "%Program Files%\Monterix\PC Cleaner\unins000.exe"
Again In the right panel, locate and delete the entry:
QuietUninstallString = "%Program Files%\Monterix\PC Cleaner\unins000.exe /SILENT"
Again In the right panel, locate and delete the entry:
DisplayVersion = "12.4.0.1"
Again In the right panel, locate and delete the entry:
Publisher = "Monterix Technology LLC"
Again In the right panel, locate and delete the entry:
URLInfoAbout = "http://www.{BLOCKED}ner.software"
Again In the right panel, locate and delete the entry:
HelpLink = "http://www.{BLOCKED}ner.software"
Again In the right panel, locate and delete the entry:
URLUpdateInfo = "http://www.{BLOCKED}ner.software"
Again In the right panel, locate and delete the entry:
NoModify = "1"
Again In the right panel, locate and delete the entry:
NoRepair = "1"
Again In the right panel, locate and delete the entry:
InstallDate = "20191006"
Again In the right panel, locate and delete the entry:
MajorVersion = "12"
Again In the right panel, locate and delete the entry:
MinorVersion = "4"
Again In the right panel, locate and delete the entry:
VersionMajor = "12"
Again In the right panel, locate and delete the entry:
VersionMinor = "4"
Again In the right panel, locate and delete the entry:
EstimatedSize = "10951"
Again In the right panel, locate and delete the entry:
CloseToTray = "1"
Again In the right panel, locate and delete the entry:
AutoRun = "1"
Again In the right panel, locate and delete the entry:
ShowTrayHints = "1"
Again In the right panel, locate and delete the entry:
AppPath = "%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe"
Again In the right panel, locate and delete the entry:
InstallID = "a43bdf0f91521a055a52d2e6a2a787a5"
Again In the right panel, locate and delete the entry:
SerialNum = ""
Again In the right panel, locate and delete the entry:
IDLang = "1"
Again In the right panel, locate and delete the entry:
FirstRunDatei = "w\x19\xf1\x18\xe5@"
Again In the right panel, locate and delete the entry:
LastScanDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"
Again In the right panel, locate and delete the entry:
LastFixDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"
Again In the right panel, locate and delete the entry:
LastTrayMsgDatei = "\x00\x00\x00\x00\x00\x00\x00\x00"
Again In the right panel, locate and delete the entry:
ErrFound = "0"
Again In the right panel, locate and delete the entry:
ErrFixed = "0"
Again In the right panel, locate and delete the entry:
flag_cind = "0"
Close Registry Editor.

Step 5

Search and delete these components

[ Learn More ]

There may be some components 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.

%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{A3EA47AB-E836-11E9-9178-005056BC4DBC}.dat
%Program Files%\Monterix\PC Cleaner\is-1B3LR.tmp
%Program Files%\Monterix\PC Cleaner\unins000.exe
%Program Files%\Monterix\PC Cleaner\PCCleanerLite.exe
%Program Files%\Monterix\Driver Updater\unins000.msg
%Program Files%\Monterix\Driver Updater\unins000.exe
%Program Files%\Monterix\PC Cleaner\aff.txt
%User Temp%\is-3CJRB.tmp\offer_ico.bmp
%User Temp%\is-3CJRB.tmp\PCCleanerInst_00000000.exe
%Program Files%\Monterix\PC Cleaner\unins000.dat
%Program Files%\Monterix\PC Cleaner\is-3GMEL.tmp
%Program Files%\Monterix\Driver Updater\is-J5PB6.tmp
%Start Menu%\Driver Updater.lnk
%Program Files%\Monterix\Driver Updater\aff.txt
%Start Menu%\PC Cleaner.lnk
%User Temp%\is-E48SN.tmp\offer_ico.bmp
%Program Files%\Monterix\Driver Updater\is-PMA1B.tmp
%Program Files%\Monterix\Driver Updater\is-1A8JK.tmp
%Program Files%\Monterix\PC Cleaner\is-NGIVH.tmp
%Program Files%\Monterix\Driver Updater\DriverUpdaterM.exe
%System Root%\Users\Public\Desktop\PC Cleaner.lnk
%Program Files%\Monterix\Driver Updater\unins000.dat
%Program Files%\Monterix\PC Cleaner\unins000.msg
%System Root%\Users\Public\Desktop\Driver Updater.lnk

Step 6

Search and delete these folders

[ 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.

%AppDataLocal%\Microsoft\Internet Explorer\Recovery\High\Active
%User Temp%\is-E48SN.tmp\_isetup
%User Temp%\dup
%Program Files%\Monterix
%Application Data%\Microsoft\Windows\DNTException
%Application Data%\Microsoft\Windows\IECompatCache
%Program Files%\Monterix\PC Cleaner
%Program Files%\Monterix\Driver Updater
%Application Data%\Microsoft\Windows\IECompatUACache
%Application Data%\Microsoft\Windows\PrivacIE
%User Temp%\is-3CJRB.tmp\_isetup
%Application Data%\skp
%User Temp%\skp

Step 7

Restart in normal mode and scan your computer with your Trend Micro product for files detected as PUA.Win32.DriverUpdater.AO. 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 this Knowledge Base page for more information.

Step 8

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

%System Root%\Users\Public\Desktop\Driver Updater.pif
%System Root%\Users\Public\Desktop\Driver Updater.url
%Start Menu%\PC Cleaner.pif
%Start Menu%\PC Cleaner.url
%System Root%\Users\Public\Desktop\PC Cleaner.url
%Start Menu%\Driver Updater.pif
%Start Menu%\Driver Updater.url
%System Root%\Users\Public\Desktop\PC Cleaner.pif

Step 9

Restore these deleted registry keys/values from backup

*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- RegFilesHash

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- RegFiles0000

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- Sequence

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- SessionHash

In HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000
- Owner

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}
- NewInstallPromptCount

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{72853161-30C5-4D22-B7F9-0BBC1D38A37E}
- CompatBlockPromptCount

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{761497BB-D6F0-462C-B6EB-D4DAF1D92D43}
- NewInstallPromptCount

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{761497BB-D6F0-462C-B6EB-D4DAF1D92D43}
- CompatBlockPromptCount

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{DBC80044-A445-435B-BC74-9C25C1C588A9}
- NewInstallPromptCount

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{DBC80044-A445-435B-BC74-9C25C1C588A9}
- CompatBlockPromptCount

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PUA.Win32.DriverUpdater.AO

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