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Trojan.Win32.LAMBLOAD.ZTKK

December 07, 2023
 Analysis by: Raymart Christian Yambot
 ALIASES:

Trojan:Win32/LambLoad.A!dha (MICROSOFT)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


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.

It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.

  TECHNICAL DETAILS

File Size:

1,186,792 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

05 Dec 2023

Payload:

Drops files, Modifies system registry, Creates files

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 drops the following files:

  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2\UNO.ini
  • %All Users Profile%\CyberLink\Downloader\Item0.ini
  • %All Users Profile%\CLSK\Installer_Status.ini
  • %All Users Profile%\install_clap\{1882E225-003A-4f30-BEA8-A18739BB9C40}\20231207_101852_3020_install.log
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\Define_Temp.ini β†’ Deleted afterwards
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\Define.ini β†’ Deleted afterwards
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\royalty_Temp.ini β†’ Deleted afterwards
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\royalty.ini β†’ Deleted afterwards
  • %All Users Profile%\install_clap\{1882E225-003A-4f30-BEA8-A18739BB9C40}\SKRSet.skr
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\SKRSet_Temp.skr β†’ Deleted afterwards
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\SKRSet.skr β†’ Deleted afterwards
  • %All Users Profile%\install_clap\summary.log
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2\{Random Character}.json β†’ Deleted afterwards
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2\{Random Character}.json β†’ Deleted afterwards
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2\{Random Character}.json β†’ Deleted afterwards
  • %User Temp%\{Random Character}.json
  • %User Temp%\{Random Character}.json
  • %User Temp%\{Random Character}.json
  • %User Profile%\Downloads\Promeo_2323_7.0.5_Essential_PRP231123-01.tmp
  • %User Profile%\Downloads\Promeo_2323_7.0.5_Essential_PRP231123-01.exe
  • %User Profile%\Downloads\Promeo_2323_7.0.5_Essential_PRP231123-01.exe
  • %User Temp%\BB.xml
  • %User Temp%\RarSFX0\__tmp_rar_sfx_access_check_24444234
  • %User Temp%\RarSFX0\7z.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\7z.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\app_icon.ico β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Custom.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Data1.7z β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Define.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\info.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\ISSetup.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Product.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\bg02_installer_left.png β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\btn_n.bmp β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\icon_done.png β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\LeftSplash2.png β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\separator.png β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\royalty.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2012 SP4_x64\InstallInfo.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2012 SP4_x64\vcredist_x64.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2015-2022_x64\InstallInfo.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2015-2022_x64\VC_redist.x64.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\SKRSet.skr β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\CHS\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\CHT\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\DEU\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ENU\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ESP\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\FRA\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image\image_001.jpg β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image\image_002.jpg β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image\image_003.jpg β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image\image_004.jpg β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ITA\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\JPN\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\KOR\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\NLD\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\WebSetting.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime\CLWebView.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime\CPUUtility.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime\MicrosoftEdgeWebview2Setup.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime\WebView2Loader.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Uninstaller.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\UninstallerEX.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup.exe
  • %User Temp%\RarSFX0\Setup.ilg
  • %User Temp%\RarSFX0\Setup.ini
  • %User Temp%\RarSFX0\SKUtil.dll
  • %User Temp%\RarSFX0\SKUtil2008.dll
  • %User Temp%\RarSFX0\SupportFiles.7z
  • %User Temp%\RarSFX0\ureg.ini
  • %User Temp%\{Random Character}.tmp
  • %User Temp%\{Random Character}.tmp
  • %User Temp%\{Random Character}.tmp\System.dll
  • %User Temp%\{Random Character}.tmp\SkinnedControls.dll
  • %Desktop%\cyberlink.lnk
  • %System Root%\Users\Public\Desktop\CyberLink Promeo 7.0.zip

(Note: %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). . %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).. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\Desktop 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.)

It adds the following processes:

  • %User Profile%\Downloads\Promeo_2323_7.0.5_Essential_PRP231123-01.exe /S
  • %User Temp%\RarSFX0\Setup.exe
  • "%User Temp%\RarSFX0\7z.exe" a -tzip "%System Root%\Users\Public\Desktop\CyberLink Promeo 7.0.zip" "%All Users Profile%\install_clap\{1882E225-003A-4f30-BEA8-A18739BB9C40}"

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} 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).. %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 creates the following folders:

  • %All Users Profile%\CyberLink\
  • %All Users Profile%\CyberLink\CBE\
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\ToGo_v2
  • %All Users Profile%\CyberLink\Downloader\
  • %All Users Profile%\CLSK
  • %User Temp%\RarSFX0 β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2012 SP4_x64 β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2015-2022_x64 β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\CHS β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\CHT β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\DEU β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ENU β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ESP β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\FRA β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ITA β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\JPN β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\KOR β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\NLD β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime β†’ Deleted afterwards
  • %User Temp%\{Random Character}.tmp β†’ Deleted afterwards
  • %All Users Profile%\install_clap
  • %All Users Profile%\install_clap\{1882E225-003A-4f30-BEA8-A18739BB9C40}
  • %All Users Profile%\SUPPORTDIR
  • %All Users Profile%\SUPPORTDIR\{Random Character}
  • %All Users Profile%\install_backup
  • %All Users Profile%\install_backup\{1882E225-003A-4f30-BEA8-A18739BB9C40}

(Note: %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). . %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).)

Other System Modifications

This Trojan adds the following registry entries:

HKEY_CURRENT_USER\Software\CyberLink\
CBE
UUID = S-1-5-21-2407829820-1079796033-203259571-500-1EB6B497-E375-41D6-936D-CB02EBAF8337

Other Details

This Trojan adds the following registry keys:

HKEY_CURRENT_USER\SOFTWARE\CyberLink\
CBE

HKEY_CURRENT_USER\Software\CyberLink\
CLDownloader

HKEY_CURRENT_USER\Software\CyberLink\
CBE\UUID

It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.838.06

FIRST VSAPI PATTERN DATE:

24 Nov 2023

VSAPI OPR PATTERN File:

18.839.00

VSAPI OPR PATTERN Date:

25 Nov 2023

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 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\CyberLink\CBE
    • UUID = S-1-5-21-2407829820-1079796033-203259571-500-1EB6B497-E375-41D6-936D-CB02EBAF8337

Step 4

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_CURRENT_USER\SOFTWARE\CyberLink\CBE
  • In HKEY_CURRENT_USER\Software\CyberLink\CBE\UUID
  • In HKEY_CURRENT_USER\Software\CyberLink\CLDownloader

Step 5

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.
  • %All Users Profile%\CyberLink\
  • %All Users Profile%\CyberLink\CBE\
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\ToGo_v2
  • %All Users Profile%\CyberLink\Downloader\
  • %All Users Profile%\CLSK
  • %User Temp%\RarSFX0 β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2012 SP4_x64 β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2015-2022_x64 β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\CHS β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\CHT β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\DEU β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ENU β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ESP β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\FRA β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ITA β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\JPN β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\KOR β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\NLD β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime β†’ Deleted afterwards
  • %User Temp%\{Random Character}.tmp β†’ Deleted afterwards
  • %All Users Profile%\install_clap
  • %All Users Profile%\install_clap\{1882E225-003A-4f30-BEA8-A18739BB9C40}
  • %All Users Profile%\SUPPORTDIR
  • %All Users Profile%\SUPPORTDIR\{Random Character}
  • %All Users Profile%\install_backup
  • %All Users Profile%\install_backup\{1882E225-003A-4f30-BEA8-A18739BB9C40}

Step 6

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. Β 
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2\UNO.ini
  • %All Users Profile%\CyberLink\Downloader\Item0.ini
  • %All Users Profile%\CLSK\Installer_Status.ini
  • %All Users Profile%\install_clap\{1882E225-003A-4f30-BEA8-A18739BB9C40}\20231207_101852_3020_install.log
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\Define_Temp.ini β†’ Deleted afterwards
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\Define.ini β†’ Deleted afterwards
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\royalty_Temp.ini β†’ Deleted afterwards
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\royalty.ini β†’ Deleted afterwards
  • %All Users Profile%\install_clap\{1882E225-003A-4f30-BEA8-A18739BB9C40}\SKRSet.skr
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\SKRSet_Temp.skr β†’ Deleted afterwards
  • %All Users Profile%\SUPPORTDIR\20231207_101852_3020\SKRSet.skr β†’ Deleted afterwards
  • %All Users Profile%\install_clap\summary.log
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2\{Random Character}.json β†’ Deleted afterwards
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2\{Random Character}.json β†’ Deleted afterwards
  • %All Users Profile%\CyberLink\CBE\D8D760AC-ACA2-493e-9623-61E9D47DE89C\cyberlink.exe_v2\{Random Character}.json β†’ Deleted afterwards
  • %User Temp%\{Random Character}.json
  • %User Temp%\{Random Character}.json
  • %User Temp%\{Random Character}.json
  • %User Profile%\Downloads\Promeo_2323_7.0.5_Essential_PRP231123-01.tmp
  • %User Profile%\Downloads\Promeo_2323_7.0.5_Essential_PRP231123-01.exe
  • %User Profile%\Downloads\Promeo_2323_7.0.5_Essential_PRP231123-01.exe
  • %User Temp%\BB.xml
  • %User Temp%\RarSFX0\__tmp_rar_sfx_access_check_24444234
  • %User Temp%\RarSFX0\7z.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\7z.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\app_icon.ico β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Custom.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Data1.7z β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Define.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\info.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\ISSetup.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Product.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\bg02_installer_left.png β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\btn_n.bmp β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\icon_done.png β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\LeftSplash2.png β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\InstallUI\separator.png β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\royalty.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2012 SP4_x64\InstallInfo.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2012 SP4_x64\vcredist_x64.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2015-2022_x64\InstallInfo.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\RunTime\VC2015-2022_x64\VC_redist.x64.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\SKRSet.skr β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\CHS\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\CHT\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\DEU\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ENU\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ESP\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\FRA\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image\image_001.jpg β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image\image_002.jpg β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image\image_003.jpg β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\image\image_004.jpg β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\ITA\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\JPN\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\KOR\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\NLD\Promotion.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Promotion\WebSetting.ini β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime\CLWebView.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime\CPUUtility.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime\MicrosoftEdgeWebview2Setup.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Runtime\WebView2Loader.dll β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\Uninstaller.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup\Utility\UninstallerEX.exe β†’ Deleted afterwards
  • %User Temp%\RarSFX0\Setup.exe
  • %User Temp%\RarSFX0\Setup.ilg
  • %User Temp%\RarSFX0\Setup.ini
  • %User Temp%\RarSFX0\SKUtil.dll
  • %User Temp%\RarSFX0\SKUtil2008.dll
  • %User Temp%\RarSFX0\SupportFiles.7z
  • %User Temp%\RarSFX0\ureg.ini
  • %User Temp%\{Random Character}.tmp
  • %User Temp%\{Random Character}.tmp
  • %User Temp%\{Random Character}.tmp\System.dll
  • %User Temp%\{Random Character}.tmp\SkinnedControls.dll
  • %Desktop%\cyberlink.lnk
  • %System Root%\Users\Public\Desktop\CyberLink Promeo 7.0.zip

Step 7

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.LAMBLOAD.ZTKK. 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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