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What is DirAnalyze?

The Malwarebytes research team has determined that DirAnalyze 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 DirAnalyze?

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


The link on that GUI opens this site:


You may see these and other tasks in your list of Scheduled Tasks:


How did DirAnalyze get on my computer?

These so-called system optimizers use different methods of getting installed. This particular one was installed by a bundler.

How do I remove DirAnalyze?

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 DirAnalyze?
  • No, Malwarebytes removes DirAnalyze 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 DirAnalyze installer. It would have warned you before the application could install itself, giving you a chance to stop it before it became too late.


and we block access to their domain.

Technical details for experts

You may see these entries in FRST logs:
 C:\Windows\System32\Tasks\SDisk Finder
 C:\Windows\Tasks\Test Task.job
 C:\Program Files (x86)\SDisk Finder
 (DirAnalyze ) C:\Users\{username}\Downloads\scf.exe

Task: {05B0FD01-1950-4A64-85D5-82AC65DA6EF1} - System32\Tasks\DirAnalyzer => C:\Users\Public\DiskCleaner\sdiskfinder.exe [2017-07-04] (DirAnalyze )
Task: {2797DCFE-8D43-439A-BD17-BF5E4F8BBDDA} - System32\Tasks\SDisk Finder => C:\Users\Public\DiskCleaner\sdiskfinder.exe [2017-07-04] (DirAnalyze )
Task: {A43C518E-E01F-4859-BA69-127862BD61EE} - System32\Tasks\Microsoft\DiskOptimizer => C:\Program Files (x86)\SDisk Finder\sdiskfinder.exe [2017-07-04] (DirAnalyze )
Task: C:\Windows\Tasks\Test Task.job => C:\Windows\System32\notepad.exe
Alterations made by the installer:
File system details [View: All details] (Selection)
    Adds the folder C:\Program Files (x86)\SDisk Finder
       Adds the file sdiskfinder.exe"="7/4/2017 10:34 AM, 4990464 bytes, A
    In the existing folder C:\Users\{username}\Downloads
       Adds the file scf.db"="7/4/2017 10:55 AM, 4096 bytes, A
    Adds the folder C:\Users\Public\DiskCleaner
       Adds the file sdiskfinder.exe"="7/4/2017 10:34 AM, 4990464 bytes, A
    In the existing folder C:\Windows\System32\Tasks
       Adds the file DirAnalyzer"="7/4/2017 10:55 AM, 3574 bytes, A
       Adds the file SDisk Finder"="7/4/2017 10:55 AM, 3318 bytes, A
    In the existing folder C:\Windows\System32\Tasks\Microsoft
       Adds the file DiskOptimizer"="7/4/2017 10:55 AM, 3520 bytes, A
    In the existing folder C:\Windows\Tasks
       Adds the file Test Task.job"="7/4/2017 10:55 AM, 226 bytes, A
Malwarebytes log:

-Log Details-
Scan Date: 7/4/17
Scan Time: 2:17 PM
Log File: mbamDirAnalyze.txt
Administrator: Yes

-Software Information-
Components Version: 1.0.141
Update Package Version: 1.0.2290
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: 337132
Threats Detected: 16
Threats Quarantined: 16
Time Elapsed: 1 min, 25 sec

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

-Scan Details-
Process: 0
(No malicious items detected)

Module: 0
(No malicious items detected)

Registry Key: 4
PUP.Optional.SDiskFinder, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TREE\DirAnalyzer, Delete-on-Reboot, [9446], [413145],1.0.2290
PUP.Optional.SDiskFinder, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TREE\SDisk Finder, Delete-on-Reboot, [9446], [412870],1.0.2290
PUP.Optional.SDiskFinder, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{05B0FD01-1950-4A64-85D5-82AC65DA6EF1}, Delete-on-Reboot, [9446], [413144],1.0.2290
PUP.Optional.SDiskFinder, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{501DB47D-6021-45AB-AB44-FFA0E693E46E}, Delete-on-Reboot, [9446], [412869],1.0.2290

Registry Value: 2
PUP.Optional.SDiskFinder, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{05B0FD01-1950-4A64-85D5-82AC65DA6EF1}|PATH, Delete-on-Reboot, [9446], [413144],1.0.2290
PUP.Optional.SDiskFinder, HKLM\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\TASKS\{501DB47D-6021-45AB-AB44-FFA0E693E46E}|PATH, Delete-on-Reboot, [9446], [412869],1.0.2290

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 2
PUP.Optional.SDiskFinder, C:\USERS\PUBLIC\DISKCLEANER, Delete-on-Reboot, [9446], [412874],1.0.2290
PUP.Optional.SDiskFinder, C:\PROGRAM FILES (X86)\SDISK FINDER, Delete-on-Reboot, [9446], [412873],1.0.2290

File: 8
PUP.Optional.SDiskFinder, C:\USERS\{username}\DESKTOP\SCF.EXE, Delete-on-Reboot, [9446], [413142],1.0.2290
PUP.Optional.SDiskFinder, C:\PROGRAM FILES (X86)\SDISK FINDER\SDISKFINDER.EXE, Delete-on-Reboot, [9446], [413142],1.0.2290
PUP.Optional.SDiskFinder, C:\USERS\{username}\DOWNLOADS\SCF.EXE, Delete-on-Reboot, [9446], [413142],1.0.2290
PUP.Optional.SDiskFinder, C:\USERS\PUBLIC\DISKCLEANER\SDISKFINDER.EXE, Delete-on-Reboot, [9446], [413142],1.0.2290
PUP.Optional.SDiskFinder, C:\WINDOWS\TASKS\TEST TASK.JOB, Delete-on-Reboot, [9446], [413151],1.0.2290
PUP.Optional.SDiskFinder, C:\WINDOWS\SYSTEM32\TASKS\DIRANALYZER, Delete-on-Reboot, [9446], [413146],1.0.2290
PUP.Optional.SDiskFinder, C:\WINDOWS\SYSTEM32\TASKS\MICROSOFT\DISKOPTIMIZER, Delete-on-Reboot, [9446], [413152],1.0.2290
PUP.Optional.SDiskFinder, C:\WINDOWS\SYSTEM32\TASKS\SDISK FINDER, Delete-on-Reboot, [9446], [412871],1.0.2290

Physical Sector: 0
(No malicious items detected)

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.
Edited by Metallica
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