PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan 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: 4,317,936 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 05 Aug 2016

Arrival Details

This Trojan 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 Trojan creates the following folders:

  • %User Temp%\is-DLFLP.tmp
  • %User Temp%\is-UQ0CP.tmp
  • %User Temp%\is-UQ0CP.tmp\_isetup
  • %Program Files%\RegClean Pro
  • %Start Menu%\Programs\RegClean Pro
  • %System Root%\Documents and Settings\Wilbert
  • %User Profile%\Application Data\Systweak
  • %User Profile%\Systweak\RegClean Pro
  • %User Profile%\RegClean Pro\Version 6.1
  • %User Temp%\is-JOI6R.tmp
  • %User Temp%\is-FGN8S.tmp
  • %User Temp%\is-FGN8S.tmp\_isetup
  • %User Profile%\Application Data\Advanced System Protector
  • %User Temp%\is-2V46I.tmp
  • %User Temp%\is-J2JB5.tmp
  • %User Temp%\is-J2JB5.tmp\_isetup

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %Start Menu% is the Start Menu folder, where it usually is C:\Documents and Settings\{user name}\Start Menu on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)

Autostart Technique

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

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
RDReminder = "%Program Files%\RegClean Pro\RegCleanPro.exe -rem"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
SystweakASP = "%Program Files%\RegClean Pro\SystweakASP.exe /verysilent"

Other System Modifications

This Trojan deletes the following files:

  • %Start Menu%\Programs\RegClean Pro\RegClean Pro.pif
  • %Start Menu%\Programs\RegClean Pro\RegClean Pro.url
  • %Start Menu%\Programs\RegClean Pro\Register RegClean Pro.pif
  • %Start Menu%\Programs\RegClean Pro\Register RegClean Pro.url
  • %Start Menu%\Programs\RegClean Pro\Uninstall RegClean Pro.pif
  • %Start Menu%\Programs\RegClean Pro\Uninstall RegClean Pro.url
  • %Desktop%\RegClean Pro.pif
  • %Desktop%\RegClean Pro.url
  • %Windows%\Tasks\Regclean Pro.job
  • %Windows%\Tasks\Regclean Pro_DEFAULT.job
  • %Windows%\Tasks\Regclean Pro_Updates.job

(Note: %Start Menu% is the Start Menu folder, where it usually is C:\Documents and Settings\{user name}\Start Menu on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

It adds the following registry keys:

HKEY_LOCAL_MACHINE\Software\Systweak\
RegClean Pro\Version 6.1

HKEY_LOCAL_MACHINE\Software\Systweak\
Params

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1\LANG

HKEY_LOCAL_MACHINE\Software\Systweak\
RegClean Pro\Version 6.1\LANG

HKEY_CURRENT_USER\Software\Licenses

HKEY_CLASSES_ROOT\CLSID\{459DD0F7-0D55-D3DC-67BC-E6BE37E9D762}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{459DD0F7-0D55-D3DC-67BC-E6BE37E9D762}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard

HKEY_CURRENT_USER\SOFTWARE\LogMeInRescueCallingCard

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
TELNO = "(800) 871-7918"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
utm_source = "dcnew_util_728_pd"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
utm_campaign = "dcnew_util_728_pd"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
utm_medium = "newbuild"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
RCPURL = "{random characters}"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
RENEWALURL = "{random characters}"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
Params
utm_source = "dcnew_util_728_pd"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
Params
utm_campaign = "dcnew_util_728_pd"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
Params
utm_medium = "newbuild"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
StartAutoScanPMUI = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
StartAutoScanOnLaunch = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
StartAutoTutorial = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
TrialType = "0"

HKEY_CURRENT_USER\Software\Systweak
MachineID = "{random values}"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak
MachineID = "{random values}"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
MaxFixLimit = "f"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
Inno Setup: Setup Version = "5.5.1 (u)"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
Inno Setup: App Path = "%Program Files%\RegClean Pro"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
InstallLocation = "%Program Files%\RegClean Pro"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
Inno Setup: Icon Group = "RegClean Pro"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
Inno Setup: User = "Wilbert"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
Inno Setup: Language = "en"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
DisplayName = "RegClean Pro"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
DisplayIcon = "%Program Files%\RegClean Pro\Regcleanpro.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
UninstallString = "%Program Files%\RegClean Pro\unins000.exe "

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
QuietUninstallString = "%Program Files%\RegClean Pro\unins000.exe /SILENT"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
DisplayVersion = "6.21"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
Publisher = "Systweak Inc"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
URLInfoAbout = "http://www.{BLOCKED}ak.com/RegCleanPro"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
HelpLink = "http://www.{BLOCKED}ak.com/RegCleanPro"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
NoRepair = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
InstallDate = "20160715"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
MajorVersion = "6"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
MinorVersion = "15"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1\LANG
LangCode = "en"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1\LANG
LangID = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1\LANG
LangID = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1
UninstallString = "%Program Files%\RegClean Pro\unins000.exe /silent"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
LaunchASP = "1"

HKEY_CURRENT_USER\Software\Licenses
{R7C0DB872A3F777C0} = "{random values}"

HKEY_CURRENT_USER\Software\Licenses
{K7C0DB872A3F777C0} = "{random values}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{459DD0F7-0D55-D3DC-67BC-E6BE37E9D762}\InprocServer32
ThreadingModel = "Both"

HKEY_CURRENT_USER\Software\Licenses
{IDE49903F6A7893C6} = "{random values}"

HKEY_CURRENT_USER\Software\Licenses
{0DE49903F6A7893C6} = "{random values}"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
Expired = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\
RegClean Pro\Version 6.1
FirstTimeASPFired = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
SetChkDontShowRedTrayPopup = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
SetChkREmovableMedia = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
SetChkSkipEmptyKeys = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
ImprovementProgram = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
StartWhenWinBoots = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
GoToSystemTrayOnClose = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
SetEnableSound = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
ConfirmBkUps = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
StartScan = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
StartMinimized = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
AutoRepair = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
StrLastScanResults = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro
ErrorCount = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
RegErrFoundTillDate = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
RegErrsFixedTillDate = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
RegErrsFixedLast = "0"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
NumTimesRCPRunned = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
FirstRun = "1"

HKEY_CURRENT_USER\Software\Systweak\
RegClean Pro\Version 6.1
StartAutoScanPMUI = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard
CID = "1366989322"

HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard
CompanyID = "1df7ab"

HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard
ProductCode = "{A22B8513-EA8C-46A1-9735-F5BE971C368D}"

HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard
referralid = "mzjv3r"

HKEY_CURRENT_USER\Software\LogMeInRescueCallingCard
CID = "1366989322"

HKEY_CURRENT_USER\Software\LogMeInRescueCallingCard
CompanyID = "1df7ab"

HKEY_CURRENT_USER\Software\LogMeInRescueCallingCard
ProductCode = "{A22B8513-EA8C-46A1-9735-F5BE971C368D}"

HKEY_CURRENT_USER\Software\LogMeInRescueCallingCard
referralid = "mzjv3r"

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
RFC1156Agent\CurrentVersion\Parameters
TrapPollTimeMilliSecs = "3a98"

(Note: The default value data of the said registry entry is 3a98.)

It deletes the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
RegClean Pro_is1

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{459DD0F7-0D55-D3DC-67BC-E6BE37E9D762}\Version

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\is-dlflp.tmp\{malware file name}.tmp
  • %User Temp%\is-UQ0CP.tmp\_isetup\_shfoldr.dll
  • %User Temp%\is-UQ0CP.tmp\setup_en.bmp
  • %Program Files%\RegClean Pro\unins000.dat
  • %Program Files%\RegClean Pro\is-08HB1.tmp
  • %Program Files%\RegClean Pro\is-FUFNJ.tmp
  • %Program Files%\RegClean Pro\is-RC00L.tmp
  • %Program Files%\RegClean Pro\is-C0J19.tmp
  • %Program Files%\RegClean Pro\is-TO24K.tmp
  • %Program Files%\RegClean Pro\is-385MI.tmp
  • %Program Files%\RegClean Pro\is-C7NMG.tmp
  • %Program Files%\RegClean Pro\is-6UQLC.tmp
  • %Program Files%\RegClean Pro\is-DNUC3.tmp
  • %Program Files%\RegClean Pro\is-AM1AV.tmp
  • %Program Files%\RegClean Pro\is-K4A7I.tmp
  • %Program Files%\RegClean Pro\is-VD11Q.tmp
  • %Program Files%\RegClean Pro\is-DIET7.tmp
  • %Program Files%\RegClean Pro\is-PF6VJ.tmp
  • %Program Files%\RegClean Pro\is-E859M.tmp
  • %Program Files%\RegClean Pro\is-SP2JA.tmp
  • %Program Files%\RegClean Pro\is-NHPNO.tmp
  • %Program Files%\RegClean Pro\is-KUCJ5.tmp
  • %Program Files%\RegClean Pro\is-LVEMH.tmp
  • %Program Files%\RegClean Pro\is-3HKAL.tmp
  • %Program Files%\RegClean Pro\is-3NVVD.tmp
  • %Program Files%\RegClean Pro\is-M9FOE.tmp
  • %Program Files%\RegClean Pro\is-5IIBU.tmp
  • %Program Files%\RegClean Pro\is-SM9SI.tmp
  • %Program Files%\RegClean Pro\is-JFRRU.tmp
  • %Program Files%\RegClean Pro\is-26BM6.tmp
  • %Program Files%\RegClean Pro\is-2DGBI.tmp
  • %Program Files%\RegClean Pro\is-0SRHP.tmp
  • %Program Files%\RegClean Pro\is-F6UP4.tmp
  • %Start Menu%\Programs\RegClean Pro\RegClean Pro.lnk
  • %Start Menu%\Programs\RegClean Pro\Register RegClean Pro.lnk
  • %Start Menu%\Programs\RegClean Pro\Uninstall RegClean Pro.lnk
  • %Desktop%\RegClean Pro.lnk
  • %Program Files%\RegClean Pro\unins000.msg
  • %User Temp%\is-UQ0CP.tmp\roboot.exe
  • %User Profile%\Version 6.1\eng_rcp.dat
  • %Windows%\Tasks\RegClean Pro_UPDATES.job
  • %Windows%\Tasks\RegClean Pro_DEFAULT.job
  • %User Temp%\is-JOI6R.tmp\systweakasp.tmp
  • %User Temp%\is-FGN8S.tmp\_isetup\_shfoldr.dll
  • %User Temp%\is-FGN8S.tmp\isxdl.dll
  • %User Profile%\Advanced System Protector\aspsetup.exe
  • %User Temp%\is-2V46I.tmp\aspsetup.tmp
  • %User Temp%\is-J2JB5.tmp\_isetup\_shfoldr.dll
  • %User Temp%\is-J2JB5.tmp\isxdl.dll
  • %System%\roboot.exe

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %Start Menu% is the Start Menu folder, where it usually is C:\Documents and Settings\{user name}\Start Menu on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://cloudfront.{BLOCKED}ak.com/aspsl/aspsetup_{BLOCKED}ak_default.exe
  • {BLOCKED}236.20

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine: 9.8

Step 1

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

Step 2

Restart in Safe Mode

[ Learn More ]

Step 3

Delete this registry key

[ 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_LOCAL_MACHINE\Software\Systweak\RegClean Pro
    • Version 6.1
  • In HKEY_LOCAL_MACHINE\Software\Systweak
    • Params
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro
    • Version 6.1
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
    • RegClean Pro_is1
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • LANG
  • In HKEY_LOCAL_MACHINE\Software\Systweak\RegClean Pro\Version 6.1
    • LANG
  • In HKEY_CURRENT_USER\Software
    • Licenses
  • In HKEY_CLASSES_ROOT\CLSID
    • {459DD0F7-0D55-D3DC-67BC-E6BE37E9D762}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459DD0F7-0D55-D3DC-67BC-E6BE37E9D762}
    • InprocServer32
  • In HKEY_LOCAL_MACHINE\SOFTWARE
    • LogMeInRescueCallingCard
  • In HKEY_CURRENT_USER\SOFTWARE
    • LogMeInRescueCallingCard

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
    • RDReminder = "%Program Files%\RegClean Pro\RegCleanPro.exe -rem"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • SystweakASP = "%Program Files%\RegClean Pro\SystweakASP.exe /verysilent"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • TELNO = "(800) 871-7918"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • utm_source = "dcnew_util_728_pd"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • utm_campaign = "dcnew_util_728_pd"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • utm_medium = "newbuild"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • RCPURL = "{random characters}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • RENEWALURL = "{random characters}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\Params
    • utm_source = "dcnew_util_728_pd"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\Params
    • utm_campaign = "dcnew_util_728_pd"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\Params
    • utm_medium = "newbuild"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • StartAutoScanPMUI = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • StartAutoScanOnLaunch = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • StartAutoTutorial = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • TrialType = "0"
  • In HKEY_CURRENT_USER\Software\Systweak
    • MachineID = "{random values}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak
    • MachineID = "{random values}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • MaxFixLimit = "f"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • Inno Setup: Setup Version = "5.5.1 (u)"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • Inno Setup: App Path = "%Program Files%\RegClean Pro"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • InstallLocation = "%Program Files%\RegClean Pro"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • Inno Setup: Icon Group = "RegClean Pro"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • Inno Setup: User = "Wilbert"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • Inno Setup: Language = "en"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • DisplayName = "RegClean Pro"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • DisplayIcon = "%Program Files%\RegClean Pro\Regcleanpro.exe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • UninstallString = "%Program Files%\RegClean Pro\unins000.exe "
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • QuietUninstallString = "%Program Files%\RegClean Pro\unins000.exe /SILENT"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • DisplayVersion = "6.21"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • Publisher = "Systweak Inc"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • URLInfoAbout = "http://www.{BLOCKED}ak.com/RegCleanPro"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • HelpLink = "http://www.{BLOCKED}ak.com/RegCleanPro"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • NoModify = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • NoRepair = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • InstallDate = "20160715"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • MajorVersion = "6"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • MinorVersion = "15"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1\LANG
    • LangCode = "en"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1\LANG
    • LangID = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1\LANG
    • LangID = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RegClean Pro_is1
    • UninstallString = "%Program Files%\RegClean Pro\unins000.exe /silent"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • LaunchASP = "1"
  • In HKEY_CURRENT_USER\Software\Licenses
    • {R7C0DB872A3F777C0} = "{random values}"
  • In HKEY_CURRENT_USER\Software\Licenses
    • {K7C0DB872A3F777C0} = "{random values}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459DD0F7-0D55-D3DC-67BC-E6BE37E9D762}\InprocServer32
    • ThreadingModel = "Both"
  • In HKEY_CURRENT_USER\Software\Licenses
    • {IDE49903F6A7893C6} = "{random values}"
  • In HKEY_CURRENT_USER\Software\Licenses
    • {0DE49903F6A7893C6} = "{random values}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • Expired = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Systweak\RegClean Pro\Version 6.1
    • FirstTimeASPFired = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • SetChkDontShowRedTrayPopup = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • SetChkREmovableMedia = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • SetChkSkipEmptyKeys = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • ImprovementProgram = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • StartWhenWinBoots = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • GoToSystemTrayOnClose = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • SetEnableSound = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • ConfirmBkUps = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • StartScan = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • StartMinimized = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • AutoRepair = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • StrLastScanResults = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro
    • ErrorCount = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • RegErrFoundTillDate = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • RegErrsFixedTillDate = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • RegErrsFixedLast = "0"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • NumTimesRCPRunned = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • FirstRun = "1"
  • In HKEY_CURRENT_USER\Software\Systweak\RegClean Pro\Version 6.1
    • StartAutoScanPMUI = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard
    • CID = "1366989322"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard
    • CompanyID = "1df7ab"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard
    • ProductCode = "{A22B8513-EA8C-46A1-9735-F5BE971C368D}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\LogMeInRescueCallingCard
    • referralid = "mzjv3r"
  • In HKEY_CURRENT_USER\Software\LogMeInRescueCallingCard
    • CID = "1366989322"
  • In HKEY_CURRENT_USER\Software\LogMeInRescueCallingCard
    • CompanyID = "1df7ab"
  • In HKEY_CURRENT_USER\Software\LogMeInRescueCallingCard
    • ProductCode = "{A22B8513-EA8C-46A1-9735-F5BE971C368D}"
  • In HKEY_CURRENT_USER\Software\LogMeInRescueCallingCard
    • referralid = "mzjv3r"

Step 5

Restore these modified registry values

[ 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\Microsoft\RFC1156Agent\CurrentVersion\Parameters
    • From: TrapPollTimeMilliSecs = "3a98"
      To: TrapPollTimeMilliSecs = ""3a98""

Step 6

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.
  • %User Temp%\is-dlflp.tmp\{malware file name}.tmp
  • %User Temp%\is-UQ0CP.tmp\_isetup\_shfoldr.dll
  • %User Temp%\is-UQ0CP.tmp\setup_en.bmp
  • %Program Files%\RegClean Pro\unins000.dat
  • %Program Files%\RegClean Pro\is-08HB1.tmp
  • %Program Files%\RegClean Pro\is-FUFNJ.tmp
  • %Program Files%\RegClean Pro\is-RC00L.tmp
  • %Program Files%\RegClean Pro\is-C0J19.tmp
  • %Program Files%\RegClean Pro\is-TO24K.tmp
  • %Program Files%\RegClean Pro\is-385MI.tmp
  • %Program Files%\RegClean Pro\is-C7NMG.tmp
  • %Program Files%\RegClean Pro\is-6UQLC.tmp
  • %Program Files%\RegClean Pro\is-DNUC3.tmp
  • %Program Files%\RegClean Pro\is-AM1AV.tmp
  • %Program Files%\RegClean Pro\is-K4A7I.tmp
  • %Program Files%\RegClean Pro\is-VD11Q.tmp
  • %Program Files%\RegClean Pro\is-DIET7.tmp
  • %Program Files%\RegClean Pro\is-PF6VJ.tmp
  • %Program Files%\RegClean Pro\is-E859M.tmp
  • %Program Files%\RegClean Pro\is-SP2JA.tmp
  • %Program Files%\RegClean Pro\is-NHPNO.tmp
  • %Program Files%\RegClean Pro\is-KUCJ5.tmp
  • %Program Files%\RegClean Pro\is-LVEMH.tmp
  • %Program Files%\RegClean Pro\is-3HKAL.tmp
  • %Program Files%\RegClean Pro\is-3NVVD.tmp
  • %Program Files%\RegClean Pro\is-M9FOE.tmp
  • %Program Files%\RegClean Pro\is-5IIBU.tmp
  • %Program Files%\RegClean Pro\is-SM9SI.tmp
  • %Program Files%\RegClean Pro\is-JFRRU.tmp
  • %Program Files%\RegClean Pro\is-26BM6.tmp
  • %Program Files%\RegClean Pro\is-2DGBI.tmp
  • %Program Files%\RegClean Pro\is-0SRHP.tmp
  • %Program Files%\RegClean Pro\is-F6UP4.tmp
  • %Start Menu%\Programs\RegClean Pro\RegClean Pro.lnk
  • %Start Menu%\Programs\RegClean Pro\Register RegClean Pro.lnk
  • %Start Menu%\Programs\RegClean Pro\Uninstall RegClean Pro.lnk
  • %Desktop%\RegClean Pro.lnk
  • %Program Files%\RegClean Pro\unins000.msg
  • %User Temp%\is-UQ0CP.tmp\roboot.exe
  • %User Profile%\Version 6.1\eng_rcp.dat
  • %Windows%\Tasks\RegClean Pro_UPDATES.job
  • %Windows%\Tasks\RegClean Pro_DEFAULT.job
  • %User Temp%\is-JOI6R.tmp\systweakasp.tmp
  • %User Temp%\is-FGN8S.tmp\_isetup\_shfoldr.dll
  • %User Temp%\is-FGN8S.tmp\isxdl.dll
  • %User Profile%\Advanced System Protector\aspsetup.exe
  • %User Temp%\is-2V46I.tmp\aspsetup.tmp
  • %User Temp%\is-J2JB5.tmp\_isetup\_shfoldr.dll
  • %User Temp%\is-J2JB5.tmp\isxdl.dll
  • %System%\roboot.exe

Step 7

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.
  • %User Temp%\is-DLFLP.tmp
  • %User Temp%\is-UQ0CP.tmp
  • %User Temp%\is-UQ0CP.tmp\_isetup
  • %Program Files%\RegClean Pro
  • %Start Menu%\Programs\RegClean Pro
  • %System Root%\Documents and Settings\Wilbert
  • %User Profile%\Application Data\Systweak
  • %User Profile%\Systweak\RegClean Pro
  • %User Profile%\RegClean Pro\Version 6.1
  • %User Temp%\is-JOI6R.tmp
  • %User Temp%\is-FGN8S.tmp
  • %User Temp%\is-FGN8S.tmp\_isetup
  • %User Profile%\Application Data\Advanced System Protector
  • %User Temp%\is-2V46I.tmp
  • %User Temp%\is-J2JB5.tmp
  • %User Temp%\is-J2JB5.tmp\_isetup

Step 8

Restart in normal mode and scan your computer with your Trend Micro product for files detected as PUA_RegCleanPro. 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 9

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.

  • %Start Menu%\Programs\RegClean Pro\RegClean Pro.pif
  • %Start Menu%\Programs\RegClean Pro\RegClean Pro.url
  • %Start Menu%\Programs\RegClean Pro\Register RegClean Pro.pif
  • %Start Menu%\Programs\RegClean Pro\Register RegClean Pro.url
  • %Start Menu%\Programs\RegClean Pro\Uninstall RegClean Pro.pif
  • %Start Menu%\Programs\RegClean Pro\Uninstall RegClean Pro.url
  • %Desktop%\RegClean Pro.pif
  • %Desktop%\RegClean Pro.url
  • %Windows%\Tasks\Regclean Pro.job
  • %Windows%\Tasks\Regclean Pro_DEFAULT.job
  • %Windows%\Tasks\Regclean Pro_Updates.job

Step 10

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\Windows\CurrentVersion\Uninstall
    • RegClean Pro_is1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459DD0F7-0D55-D3DC-67BC-E6BE37E9D762}
    • Version


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