Home Malware Programs Potentially Unwanted Programs (PUPs) KuaiZip

KuaiZip

Posted: July 12, 2016

Threat Metric

Ranking: 1,408
Threat Level: 1/10
Infected PCs: 238,632
First Seen: July 12, 2016
Last Seen: October 17, 2023
OS(es) Affected: Windows


KuaiZip may not be a reliable tool that can help you compress or decompress your files. It is a Chinese Potentially Unwanted Program (PUP) that may not perform as expected. Moreover, it may cause unpleasant modifications to other applications like your browsers. It is true that the license of KuaiZip is free, but its developers may benefit financially from its existence. The PUP may inject additional commercial materials in the sites to transfer you to its partners. This way, the creators of this unreliable compression software may collect pay-per-click commissions. You should keep in mind that there is no way to know if all of the sponsored domains are safe. Some of them may try to deploy threats or other PUPs. You may even end up on platforms designed to gather information from the visitors exclusively. The targeted data may include your phone number and email address, which may result in spam. For this reason, the experts recommend you not to click on any pop-ups, banners, sponsored videos or in-text ads by KuaiZip.

Unfortunately, the mere existence of these commercial materials may cause trouble. The constant loading of multimedia ads may become a burden to your Web clients. As a result, Google Chrome, Mozilla Firefox and Internet Explorer may start working sluggishly. Your surfing sessions may get interrupted by some speed drops or freezes as well. KuaiZip may change some of the settings automatically. It may replace your homepage and default search provider with untrustworthy alternatives associated with manipulated results. There are two main methods for this PUP to enter your system. Some users may download it willingly from one of its official sites, which are kuaizip.com and kuaizip.com/en. The product description there states that KuaiZip is better than established programs like WinRAR, 7-zip and WinZip, which is a lie. If you cannot remember installing this PUP manually, then it probably came in a software bundle. You should consider deleting the suspicious application with a renowned anti-malware tool.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



C:\Program Files\111\X86\Update.exe File name: Update.exe
Size: 879.55 KB (879552 bytes)
MD5: dea1ab165c6f0c197cd55b1d1b55d5db
Detection count: 5,459
File type: Executable File
Mime Type: unknown/exe
Path: C:\Program Files\111\X86\Update.exe
Group: Malware file
Last Updated: September 17, 2022
%SYSTEMDRIVE%\Users\<username>\AppData\Roaming\ziptool_wc-9015_setup.exe File name: ziptool_wc-9015_setup.exe
Size: 5.26 MB (5267952 bytes)
MD5: fd853d06e1d74db68710435655d403ce
Detection count: 2,351
File type: Executable File
Mime Type: unknown/exe
Path: %SYSTEMDRIVE%\Users\<username>\AppData\Roaming\ziptool_wc-9015_setup.exe
Group: Malware file
Last Updated: September 13, 2023
C:\dokumenta\iTs™\AppData\Local\Temp\00009488\KuaiZip_Setup_129823379_zzlm_013.exe File name: KuaiZip_Setup_129823379_zzlm_013.exe
Size: 7.31 MB (7318464 bytes)
MD5: 9c72f085a7a0c39234e051f537edb5aa
Detection count: 1,499
File type: Executable File
Mime Type: unknown/exe
Path: C:\dokumenta\iTs™\AppData\Local\Temp\00009488\KuaiZip_Setup_129823379_zzlm_013.exe
Group: Malware file
Last Updated: October 24, 2022
%SystemDrive%\Program Files\??\kuaizipUpdateChecker.dll File name: kuaizipUpdateChecker.dll
Size: 420.65 KB (420656 bytes)
MD5: b6fd91f12f724c393cd03e950b96c571
Detection count: 204
File type: Dynamic link library
Mime Type: unknown/dll
Path: %SystemDrive%\Program Files\??
Group: Malware file
Last Updated: April 28, 2020
C:\Program Files\????\X86\kuaizipUpdateChecker.dll File name: kuaizipUpdateChecker.dll
Size: 219.03 KB (219032 bytes)
MD5: 46f5d1a2aae0dc6c94257731c87ba42c
Detection count: 119
File type: Dynamic link library
Mime Type: unknown/dll
Path: C:\Program Files\????\X86
Group: Malware file
Last Updated: July 26, 2017
%PROGRAMFILES%\????\X86\kuaizipUpdateChecker.dll File name: kuaizipUpdateChecker.dll
Size: 219.03 KB (219032 bytes)
MD5: 935e39b35010b2aad1d24c284fa52512
Detection count: 56
File type: Dynamic link library
Mime Type: unknown/dll
Path: %PROGRAMFILES%\????\X86
Group: Malware file
Last Updated: July 26, 2017
%APPDATA%\kpzip.exe File name: kpzip.exe
Size: 1.61 MB (1615872 bytes)
MD5: 6ff8faf43c5b89272bd9710e82da3f38
Detection count: 46
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%
Group: Malware file
Last Updated: March 25, 2017
%APPDATA%\kpzip.exe File name: kpzip.exe
Size: 1.61 MB (1616896 bytes)
MD5: 47989083261fbd932d26a1088480850a
Detection count: 44
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%
Group: Malware file
Last Updated: March 25, 2017
%PROGRAMFILES(x86)%\KuaiZip\X86\kuaizipUpdateChecker.dll File name: kuaizipUpdateChecker.dll
Size: 216.7 KB (216704 bytes)
MD5: aec1ae5ab18bfbb645f11932a9208e29
Detection count: 30
File type: Dynamic link library
Mime Type: unknown/dll
Path: %PROGRAMFILES(x86)%\KuaiZip\X86
Group: Malware file
Last Updated: February 20, 2023
%SystemDrive%\Users\<username>\AppData\Roaming\kpzip.exe File name: kpzip.exe
Size: 1.77 MB (1778688 bytes)
MD5: 71275e57dc82443a3d7eb33d1a35a32f
Detection count: 28
File type: Executable File
Mime Type: unknown/exe
Path: %SystemDrive%\Users\<username>\AppData\Roaming
Group: Malware file
Last Updated: March 25, 2017
%APPDATA%\kpzip.exe File name: kpzip.exe
Size: 1.72 MB (1728381 bytes)
MD5: 791c381daee80035c8309b3c7c94d192
Detection count: 16
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%
Group: Malware file
Last Updated: March 25, 2017
%APPDATA%\kpzip.exe File name: kpzip.exe
Size: 1.73 MB (1732608 bytes)
MD5: 83147e13faf8c716f53ca07266caef86
Detection count: 7
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%
Group: Malware file
Last Updated: March 25, 2017
%APPDATA%\kpzip.exe File name: kpzip.exe
Size: 1.71 MB (1710064 bytes)
MD5: f5cd3c87c671f2fc2a5b1f1a23a32fe4
Detection count: 7
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%
Group: Malware file
Last Updated: March 25, 2017

Registry Modifications

The following newly produced Registry Values are:

CLSID{2DA6D0F1-13A1-4EC7-BD41-49A545AD326F}{2FB831EA-DA68-4A66-8E31-A2D976A6296C}{3DCCD550-7586-40D2-A51D-D2F98EC06B3C}{3DCCD550-7586-40D2-A51D-D2F98EC06B3D}{6ADF19E3-77A3-4395-ADB4-9FD7D351EB3E}{6ADF19E3-77A3-4395-ADB4-9FD7D351EB3F}{86C4C3BA-4EA4-4CF8-98B9-6B07B477B835}{9CC34070-3A38-4C7A-89CB-EF8177EF07A1}{AAA0C5B8-933F-4200-93AD-B143D7FFF9F2}{AAA0C5B8-933F-4200-93AD-B143D7FFF9F3}{C9487131-EF4C-40D9-BA70-E85356CAF67E}{C9487131-EF4C-40D9-BA70-E85356CAF67F}File name without pathhttp_www.kuaizip.com_0.localstoragei.kpzip[1].xmlkpzip[1].xmlKuaiZip.lnkkuaizipdrive.syswww.kuaizip[1].xmlRegexp file mask%TEMP%\KZ7ZData.7z[RANDOM CHARACTERS]%WINDIR%\System32\drivers\KuaiZipDrive.sys%WINDIR%\system32\drivers\KuaiZipDrive2.sys%WINDIR%\System32\Tasks\KuaiZip_UpdateHKEY..\..\..\..{RegistryKeys}SOFTWARE\Classes\*\shellex\ContextMenuHandlers\KuaiZipShlExtSOFTWARE\Classes\*\shellex\ContextMenuHandlers\KZipShell2ExtSOFTWARE\Classes\*\shellex\PropertySheetHandlers\{2FB831EA-DA68-4A66-8E31-A2D976A6296C}SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\KuaiZipShlExtSOFTWARE\Classes\Drive\shellex\ContextMenuHandlers\KuaiZipShlExtSOFTWARE\Classes\KuaiZipMount_FileAsso.OriginSOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\KZipShell2ExtSOFTWARE\Classes\ZipTool_FileAsso.OriginSoftware\dlr\KuaizipDlrSOFTWARE\KuaiZipSoftware\KuaiZip2SOFTWARE\KuaiZipSFXSoftware\Microsoft\Internet Explorer\DOMStorage\i.kpzip.comSoftware\Microsoft\Internet Explorer\DOMStorage\kpzip.comSoftware\Microsoft\Internet Explorer\DOMStorage\kuaizip.comSoftware\Microsoft\Internet Explorer\DOMStorage\www.kuaizip.comSOFTWARE\Microsoft\Internet Explorer\LowRegistry\DOMStorage\kuaizip.comSOFTWARE\Microsoft\Tracing\kpzip_RASAPI32SOFTWARE\Microsoft\Tracing\kpzip_RASMANCSSOFTWARE\Microsoft\Tracing\ktpop3_RASAPI32SOFTWARE\Microsoft\Tracing\ktpop3_RASMANCSSOFTWARE\Microsoft\Tracing\KuaiZip_RASAPI32SOFTWARE\Microsoft\Tracing\KuaiZip_RASMANCSSOFTWARE\Microsoft\Tracing\mininewsxktt_RASAPI32SOFTWARE\Microsoft\Tracing\mininewsxktt_RASMANCSSOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\KuaiZip_UpdateSOFTWARE\Microsoft\Windows NT\CurrentVersion\Svchost\kuaizip2updatesvcSOFTWARE\Microsoft\Windows NT\CurrentVersion\Svchost\kuaizipupdatesvcSOFTWARE\Microsoft\Windows NT\CurrentVersion\Svchost\zipsvcsSOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.apk\OpenWithProgids\KuaiZip.apkSoftware\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.cab\OpenWithProgids\KuaiZip.cabSOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.flac\OpenWithProgids\KuaiZipMount.flacSOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.zip\OpenWithProgids\KuaiZip.zipSOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\KzShlobjSOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers\KzShlobj2SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved\KuaiZip Shell ExtensionSOFTWARE\MzipToolSOFTWARE\Wow6432Node\KuaiZip2SOFTWARE\Wow6432Node\Microsoft\Tracing\kpzip_RASAPI32SOFTWARE\Wow6432Node\Microsoft\Tracing\kpzip_RASMANCSSOFTWARE\Wow6432Node\Microsoft\Tracing\ktpop3_RASAPI32SOFTWARE\Wow6432Node\Microsoft\Tracing\ktpop3_RASMANCSSOFTWARE\Wow6432Node\Microsoft\Tracing\KuaiZip_RASAPI32SOFTWARE\Wow6432Node\Microsoft\Tracing\KuaiZip_RASMANCSSOFTWARE\Wow6432Node\Microsoft\Tracing\mininewsxktt_RASAPI32SOFTWARE\Wow6432Node\Microsoft\Tracing\mininewsxktt_RASMANCSSOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Svchost\kuaizip2updatesvcSOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Svchost\kuaizipupdatesvcSOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Svchost\zipsvcsSOFTWARE\Wow6432Node\ZipToolSoftware\ZipToolSYSTEM\ControlSet001\Enum\Root\LEGACY_KUAIZIPDRIVESYSTEM\ControlSet001\Enum\Root\LEGACY_KUAIZIPDRIVE2SYSTEM\ControlSet001\services\Kuaizip Update CheckerSYSTEM\ControlSet001\Services\KuaiZipDriveSYSTEM\ControlSet001\services\KuaiZipDrive2SYSTEM\ControlSet001\Services\KuaizipUpdateCheckerSYSTEM\ControlSet001\services\TheMzipServiceSYSTEM\ControlSet001\Services\ziphostSYSTEM\ControlSet002\Enum\Root\LEGACY_KUAIZIPDRIVESYSTEM\ControlSet002\Enum\Root\LEGACY_KUAIZIPDRIVE2SYSTEM\ControlSet002\services\Kuaizip Update CheckerSYSTEM\ControlSet002\Services\KuaiZipDriveSYSTEM\ControlSet002\services\KuaiZipDrive2SYSTEM\ControlSet002\Services\KuaizipUpdateCheckerSYSTEM\ControlSet002\services\TheMzipServiceSYSTEM\ControlSet002\Services\ziphostSYSTEM\CurrentControlSet\Enum\Root\LEGACY_KUAIZIPDRIVESYSTEM\CurrentControlSet\Enum\Root\LEGACY_KUAIZIPDRIVE2SYSTEM\CurrentControlSet\services\Kuaizip Update CheckerSYSTEM\CurrentControlSet\Services\KuaiZipDriveSYSTEM\CurrentControlSet\services\KuaiZipDrive2SYSTEM\CurrentControlSet\Services\KuaizipUpdateCheckerSYSTEM\CurrentControlSet\services\TheMzipServiceSYSTEM\CurrentControlSet\Services\ziphostHKEY_LOCAL_MACHINE\Software\[APPLICATION]\Microsoft\Windows\CurrentVersion\Uninstall..{Uninstaller}KuaiZipKuaiZip2ZipTool

Additional Information

The following directories were created:
%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\Compress%ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs\KuaiZip%APPDATA%\Heinote%APPDATA%\Kuaizip%APPDATA%\Microsoft\Windows\Start Menu\Programs\KuaiZip%APPDATA%\abckantutips%APPDATA%\klzip%APPDATA%\ksrjzs%APPDATA%\kuaiya%APPDATA%\快压%HOMEDRIVE%\tools\快压%LOCALAPPDATA%\KuaiZip%LOCALAPPDATA%\finder%LOCALAPPDATA%\zm\finder%PROGRAMFILES%\Heinote%PROGRAMFILES%\KuaiZip%PROGRAMFILES%\MzipTool%PROGRAMFILES%\ZipTool%PROGRAMFILES%\k52zip%PROGRAMFILES%\kuai8%PROGRAMFILES%\kuaiya%PROGRAMFILES%\¿ìѹ%PROGRAMFILES%\快压%PROGRAMFILES%\快压x86%PROGRAMFILES%\辦揤%PROGRAMFILES(x86)%\Heinote%PROGRAMFILES(x86)%\KuaiZip%PROGRAMFILES(x86)%\MzipTool%PROGRAMFILES(x86)%\kuai8%PROGRAMFILES(x86)%\kuaiya%PROGRAMFILES(x86)%\快压%PROGRAMFILES(x86)%\快压x86%TEMP%\KuaiZip%USERPROFILE%\Local Settings\Application Data\KuaiZip%WINDIR%\system32\config\systemprofile\appdata\roaming\快压%WINDIR%\syswow64\config\systemprofile\appdata\roaming\快压%appdata%\photoviewer%appdata%\xiaoyu%appdata%\雷神压缩%localappdata%\快压%programfiles%\QiaoZip%windir%\SysWOW64\config\systemprofile\AppData\Roaming\ZipTool%windir%\System32\config\systemprofile\AppData\Roaming\ZipTool
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