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What is DllKit PRO?

The Malwarebytes research team has determined that DllKit PRO is a "system optimizer". These so-called "system optimizers" use intentional false positives to convince users that their systems have problems. Then they try to sell you their software, claiming it will remove these problems.
More information can be found on our Malwarebytes Labs blog.

How do I know if I am infected with DllKit PRO?

This is how the main screen of the sytem optimizer looks:

main.png

You will find these icons in your taskbar, your startmenu, and on your desktop:

icons.png

and see this warning during install:

warning1.png

and these screens during "operations":

warning5.png

warning6.png

warning7.png

You may see this entry in your list of installed programs:

warning4.png

and these tasks in your list of Scheduled Tasks:

warning3.png

How did DllKit PRO get on my computer?

These so-called system optimizers use different methods of getting installed. This particular one was downloaded from their website.

How do I remove DllKit PRO?

Our program Malwarebytes can detect and remove this potentially unwanted application.
  • Please download Malwarebytes to your desktop.
  • Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  • Then click Finish.
  • Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  • If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  • When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  • Restart your computer when prompted to do so.
Is there anything else I need to do to get rid of DllKit PRO?
  • No, Malwarebytes removes DllKit PRO completely.
  • This PUP creates some scheduled tasks. You can read here how to check for and, if necessary, remove Scheduled Tasks.
How would the full version of Malwarebytes help protect me?

We hope our application and this guide have helped you eradicate this system optimizer.

As you can see below the full version of Malwarebytes would have protected you against the DllKit PRO installer. It would have warned you before the application could install itself, giving you a chance to stop it before it became too late.

 

protection1.png


and we block access to their domain:
 

protection2.png


Technical details for experts

You may see these entries in FRST logs:

 
 () C:\Program Files (x86)\DllKitPRO\DllKitPRO.exe
 C:\Windows\System32\Tasks\DllKitPRO
 C:\Users\{username}\Desktop\Dll Kit Pro.lnk
 C:\Users\{username}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Dll Kit Pro
 C:\Program Files (x86)\DllKitPRO

DllKit Pro 2017 (HKLM\...\DllKit Pro 2017) (Version:  - )
Task: {891FB4C7-44FB-4C62-A640-A6515B020C34} - System32\Tasks\DllKitPRO => C:\Program Files (x86)\DllKitPRO\dllkitpro.exe [2017-10-16] ()
Alterations made by the installer:
 
File system details [View: All details] (Selection)
---------------------------------------------------
    Adds the folder C:\Program Files (x86)\DllKitPRO
       Adds the file Common.dll"="10/15/2017 9:13 PM, 141824 bytes, A
       Adds the file DllKitPRO.exe"="10/16/2017 12:31 PM, 5095408 bytes, A
       Adds the file DotNetZip.dll"="6/22/2016 8:31 PM, 456704 bytes, A
       Adds the file log4net.dll"="12/10/2015 3:55 PM, 304640 bytes, A
       Adds the file Microsoft.Win32.TaskScheduler.dll"="5/14/2016 12:14 PM, 291840 bytes, A
       Adds the file Newtonsoft.Json.dll"="3/14/2016 8:30 PM, 485888 bytes, A
       Adds the file sciter32.dll"="1/9/2017 2:58 AM, 3935744 bytes, A
       Adds the file SciterSharpWindows.dll"="10/15/2017 9:13 PM, 109568 bytes, A
       Adds the file uninstall.exe"="1/12/2018 9:16 AM, 257244 bytes, A
    Adds the folder C:\Program Files (x86)\DllKitPRO\de
       Adds the file RC.resources.dll"="10/15/2017 9:14 PM, 3584 bytes, A
    Adds the folder C:\Users\{username}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Dll Kit Pro
       Adds the file Dll Kit Pro.lnk"="1/12/2018 9:16 AM, 1061 bytes, A
       Adds the file Uninstall.lnk"="1/12/2018 9:16 AM, 842 bytes, A
    In the existing folder C:\Users\{username}\Desktop
       Adds the file Dll Kit Pro.lnk"="1/12/2018 9:16 AM, 1025 bytes, A
    In the existing folder C:\Windows\System32\Tasks
       Adds the file DllKitPRO"="1/12/2018 9:19 AM, 3382 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_LOCAL_MACHINE\SOFTWARE\DllKitPRO]
       "AntivirusPopup"="REG_SZ", "True"
       "CompletePopup"="REG_SZ", "True"
       "Date"="REG_SZ", ""
       "DllName"="REG_SZ", ""
       "DownloadId"="REG_SZ", ""
       "FirstRun"="REG_SZ", "12.01.2018 09:17:46"
       "FirstScan"="REG_SZ", "False"
       "IssuesPopup"="REG_SZ", "True"
       "LanguageCode"="REG_SZ", "en"
       "PerformScanOnStartup"="REG_SZ", "True"
       "Serial"="REG_SZ", ""
       "SoftwareVersion"="REG_SZ", "1.0.1.4"
       "VersionPopup"="REG_SZ", "True"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\DllKit Pro 2017]
       "DisplayIcon"="REG_SZ", "C:\Program Files (x86)\DllKitPRO\dllkitpro.exe"
       "DisplayName"="REG_SZ", "DllKit Pro 2017"
       "UninstallString"="REG_SZ", "C:\Program Files (x86)\DllKitPRO\uninstall.exe"
       "URLInfoAbout"="REG_SZ", "http://www.dllkit.com"
Malwarebytes log:
 
Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 1/12/18
Scan Time: 9:30 AM
Log File: cef58e23-f772-11e7-a6a8-080027750297.json
Administrator: Yes

-Software Information-
Version: 3.3.1.2183
Components Version: 1.0.262
Update Package Version: 1.0.3679
License: Premium

-System Information-
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: {computername}\{username}

-Scan Summary-
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 240708
Threats Detected: 66
Threats Quarantined: 66
Time Elapsed: 1 min, 47 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Detect
PUM: Detect

-Scan Details-
Process: 1
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\DllKitPRO.exe, Quarantined, [536], [324535],1.0.3679

Module: 2
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\DllKitPRO.exe, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\sciter32.dll, Quarantined, [536], [324535],1.0.3679

Registry Key: 4
PUP.Optional.DllKitPRO, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TREE\DLLKITPRO, Quarantined, [536], [324541],1.0.3679
PUP.Optional.DllKitPRO, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{891FB4C7-44FB-4C62-A640-A6515B020C34}, Quarantined, [536], [324541],1.0.3679
PUP.Optional.DllKitPRO, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\LOGON\{891FB4C7-44FB-4C62-A640-A6515B020C34}, Quarantined, [536], [324541],1.0.3679
PUP.Optional.DllKitPRO, HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\DllKit Pro 2017, Quarantined, [536], [324535],1.0.3679

Registry Value: 1
PUP.Optional.DllKitPRO, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{891FB4C7-44FB-4C62-A640-A6515B020C34}|PATH, Quarantined, [536], [386992],1.0.3679

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 23
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\es-ES, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\pt-BR, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\sv-SE, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ar, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\cs, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\da, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\de, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\fi, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\fr, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\id, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\it, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ja, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ko, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\nl, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\no, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\pl, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ro, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ru, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\tr, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\uk, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\vi, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\PROGRAM FILES (X86)\DLLKITPRO, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\USERS\{username}\APPDATA\ROAMING\MICROSOFT\WINDOWS\START MENU\PROGRAMS\DLL KIT PRO, Quarantined, [536], [324542],1.0.3679

File: 35
PUP.Optional.DllKitPRO, C:\USERS\{username}\DESKTOP\DLL KIT PRO.LNK, Quarantined, [536], [324536],1.0.3679
PUP.Optional.DllKitPRO, C:\WINDOWS\SYSTEM32\TASKS\DLLKITPRO, Quarantined, [536], [324541],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ar\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\cs\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\da\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\de\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\es-ES\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\fi\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\fr\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\id\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\it\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ja\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ko\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\nl\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\no\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\pl\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\pt-BR\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ro\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\ru\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\sv-SE\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\tr\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\uk\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\vi\RC.resources.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\Common.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\DllKitPRO.exe, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\DotNetZip.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\log4net.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\Microsoft.Win32.TaskScheduler.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\Newtonsoft.Json.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\sciter32.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\SciterSharpWindows.dll, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Program Files (x86)\DllKitPRO\uninstall.exe, Quarantined, [536], [324535],1.0.3679
PUP.Optional.DllKitPRO, C:\Users\{username}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Dll Kit Pro\Dll Kit Pro.lnk, Quarantined, [536], [324542],1.0.3679
PUP.Optional.DllKitPRO, C:\Users\{username}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Dll Kit Pro\Uninstall.lnk, Quarantined, [536], [324542],1.0.3679
PUP.Optional.DllKitPRO, C:\USERS\{username}\DESKTOP\DLLKIT_FULLSETUP.EXE, Quarantined, [536], [471142],1.0.3679

Physical Sector: 0
(No malicious items detected)


(end)
As mentioned before the full version of Malwarebytes could have protected your computer against this threat.
We use different ways of protecting your computer(s):
  • Dynamically Blocks Malware Sites & Servers
  • Malware Execution Prevention
Save yourself the hassle and get protected.
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