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Removal instructions for Kitty

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  • Staff
What is Kitty?

The Malwarebytes research team has determined that Kitty is adware. These adware applications display advertisements not originating from the sites you are browsing.

How do I know if my computer is affected by Kitty?

You may see this entry (Kitty) in your list of services:


How did Kitty get on my computer?

Adware applications use different methods for distributing themselves. This particular one was bundled with other software.

How do I remove Kitty?

Our program Malwarebytes can detect and remove this potentially unwanted program.
  • 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 Kitty?
  • No, Malwarebytes removes Kitty completely.
How would the full version of Malwarebytes help protect me?

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

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



Technical details for experts

Possible signs in FRST logs:
 (kitty.exe) C:\Users\{username}\AppData\Local\Kitty\cat.exe
 R2 Kitty; C:\Users\{username}\AppData\Local\Kitty\cat.exe [357376 2017-04-21] (kitty.exe) [File not signed]
Alterations made by the installer:
File system details [View: All details] (Selection)
    Adds the folder C:\Users\{username}\AppData\Local\Kitty
       Adds the file cat.exe"="4/21/2017 9:15 AM, 357376 bytes, A

Registry details [View: All details] (Selection)
       "DisplayName"="REG_SZ", "Kitty"
       "ErrorControl"="REG_DWORD", 1
       "ImagePath"="REG_EXPAND_SZ, "C:\Users\{username}\AppData\Local\Kitty\cat.exe -s"
       "ObjectName"="REG_SZ", "LocalSystem"
       "Start"="REG_DWORD", 2
       "Type"="REG_DWORD", 16
       "WOW64"="REG_DWORD", 1
Malwarebytes log:

-Log Details-
Scan Date: 4/21/17
Scan Time: 9:34 AM
Logfile: mbamKittyCat.txt
Administrator: Yes

-Software Information-
Components Version: 1.0.96
Update Package Version: 1.0.1773
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: 327874
Time Elapsed: 1 min, 22 sec

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

-Scan Details-
Process: 1
Adware.Elex, C:\USERS\{username}\APPDATA\LOCAL\KITTY\CAT.EXE, Quarantined, [2], [391575],1.0.1773

Module: 1
Adware.Elex, C:\USERS\{username}\APPDATA\LOCAL\KITTY\CAT.EXE, Quarantined, [2], [391575],1.0.1773

Registry Key: 1
Adware.Elex, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\Kitty, Delete-on-Reboot, [2], [391575],1.0.1773

Registry Value: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 1
Adware.Elex, C:\USERS\{username}\APPDATA\LOCAL\KITTY, Delete-on-Reboot, [2], [390136],1.0.1773

File: 2
Adware.Elex, C:\USERS\{username}\APPDATA\LOCAL\KITTY\CAT.EXE, Delete-on-Reboot, [2], [391575],1.0.1773
Adware.Elex, C:\USERS\{username}\DESKTOP\KITTY.EXE, Delete-on-Reboot, [2], [391575],1.0.1773

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.
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