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Removal instructions for maintenance software

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What is maintenance software?

The Malwarebytes research team has determined that maintenance software 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 maintenance software?

You may see this warning during install:

main.png

and this entry in your list of installed programs:

warning4.png

The adware opens a new tab or window of your default browser every few minutes to display advertisements:

warning1.png

some of which leading to potentially malicious sites, blocked by teh Malwarebytes Anti-Malware Web Protection Module:

protection2.png

How did maintenance software get on my computer?

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

How do I remove maintenance software?

Our program Malwarebytes Anti-Malware can detect and remove this potentially unwanted program.
  • Please download Malwarebytes Anti-Malware to your desktop.
  • Double-click mbam-setup-version.exe and follow the prompts to install the program.
  • At the end, be sure a check-mark is placed next to the following:
    • Enable free trial of Malwarebytes Anti-Malware Premium
    • Launch Malwarebytes Anti-Malware
  • Then click Finish.
  • If an update is found, you will be prompted to download and install the latest version.
  • Once the program has loaded, select Scan now. Or select the Threat Scan from the Scan menu.
  • When the scan is complete , make sure that everything is set to "Quarantine", and click Apply Actions.
  • Reboot your computer if prompted.
Is there anything else I need to do to get rid of maintenance software?
  • No, Malwarebytes' Anti-Malware removes maintenance software completely.
How would the full version of Malwarebytes Anti-Malware help protect me?

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

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

protection1.png


Technical details for experts

Possible signs in FRST logs:
 () C:\Program Files (x86)\maintenance software\comowin.exe
 HKLM-x32\...\Run: [maintenance software] => "C:\Program Files (x86)\maintenance software\maintenance software"
 C:\Users\{username}\AppData\Local\tuto_monetize_220160612
 C:\Program Files (x86)\maintenance software

maintenance software version 1.0 (HKLM-x32\...\maintenance software_is1) (Version: 1.0 - azec)
Alterations made by the installer:
File system details [View: All details] (Selection)
---------------------------------------------------
    Adds the folder C:\Program Files (x86)\maintenance software
       Adds the file comowin.exe"="6/12/2016 11:18 AM, 3650560 bytes, A
       Adds the file unins000.dat"="6/20/2016 8:30 AM, 2307 bytes, A
       Adds the file unins000.exe"="6/20/2016 8:29 AM, 718503 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\tuto_monetize_220160612\tuto_monetize_220160612\2.00
       Adds the file cnf.cyl"="6/20/2016 8:30 AM, 131 bytes, A
       Adds the file eorezo.cyl"="6/20/2016 8:31 AM, 69 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run]
       "maintenance software"="REG_SZ", ""C:\Program Files (x86)\maintenance software\maintenance software""
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\maintenance software_is1]
       "DisplayName"="REG_SZ", "maintenance software version 1.0"
       "DisplayVersion"="REG_SZ", "1.0"
       "EstimatedSize"="REG_DWORD", 4255
       "Inno Setup: App Path"="REG_SZ", "C:\Program Files (x86)\maintenance software"
       "Inno Setup: Icon Group"="REG_SZ", "maintenance software"
       "Inno Setup: Language"="REG_SZ", "english"
       "Inno Setup: Setup Version"="REG_SZ", "5.5.4 (a)"
       "Inno Setup: User"="REG_SZ", "{username}"
       "InstallDate"="REG_SZ", "20160620"
       "InstallLocation"="REG_SZ", "C:\Program Files (x86)\maintenance software\"
       "MajorVersion"="REG_DWORD", 1
       "MinorVersion"="REG_DWORD", 0
       "NoModify"="REG_DWORD", 1
       "NoRepair"="REG_DWORD", 1
       "Publisher"="REG_SZ", "azec"
       "QuietUninstallString"="REG_SZ", ""C:\Program Files (x86)\maintenance software\unins000.exe" /SILENT"
       "UninstallString"="REG_SZ", ""C:\Program Files (x86)\maintenance software\unins000.exe""
Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware
www.malwarebytes.org

Scan Date: 6/20/2016
Scan Time: 9:05 AM
Logfile: mbamMaintenanceSoftware.txt
Administrator: Yes

Version: 2.2.1.1043
Malware Database: v2016.06.20.01
Rootkit Database: v2016.05.27.01
License: Premium
Malware Protection: Disabled
Malicious Website Protection: Enabled
Self-protection: Enabled

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

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 313438
Time Elapsed: 11 min, 33 sec

Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

Processes: 1
PUP.Optional.EoRezo, C:\Program Files (x86)\maintenance software\comowin.exe, 3108, Delete-on-Reboot, [0f222dd24455ef47e165b650c04018e8]

Modules: 0
(No malicious items detected)

Registry Keys: 1
PUP.Optional.Tuto4PC, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\maintenance software_is1, Quarantined, [b97855aaf2a740f6616a2b67e32132ce], 

Registry Values: 1
PUP.Optional.EoRezo, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN|maintenance software, "C:\Program Files (x86)\maintenance software\maintenance software", Quarantined, [60d1ca35e2b745f103e428ca966dab55]

Registry Data: 0
(No malicious items detected)

Folders: 4
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\tuto_monetize_220160612, Quarantined, [3af7a05f5a3f82b47ed7417f0ff3d030], 
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\tuto_monetize_220160612\tuto_monetize_220160612, Quarantined, [3af7a05f5a3f82b47ed7417f0ff3d030], 
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\tuto_monetize_220160612\tuto_monetize_220160612\2.00, Quarantined, [3af7a05f5a3f82b47ed7417f0ff3d030], 
PUP.Optional.Tuto4PC, C:\Program Files (x86)\maintenance software, Delete-on-Reboot, [b97855aaf2a740f6616a2b67e32132ce], 

Files: 6
PUP.Optional.EoRezo, C:\Program Files (x86)\maintenance software\comowin.exe, Delete-on-Reboot, [0f222dd24455ef47e165b650c04018e8], 
PUP.Optional.Tuto4PC, C:\Users\{username}\Desktop\MaintenanceSoftware.exe, Quarantined, [45ec37c8f2a7da5c1f178b5b5aa75aa6], 
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\tuto_monetize_220160612\tuto_monetize_220160612\2.00\cnf.cyl, Quarantined, [3af7a05f5a3f82b47ed7417f0ff3d030], 
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\tuto_monetize_220160612\tuto_monetize_220160612\2.00\eorezo.cyl, Quarantined, [3af7a05f5a3f82b47ed7417f0ff3d030], 
PUP.Optional.Tuto4PC, C:\Program Files (x86)\maintenance software\unins000.dat, Quarantined, [b97855aaf2a740f6616a2b67e32132ce], 
PUP.Optional.Tuto4PC, C:\Program Files (x86)\maintenance software\unins000.exe, Quarantined, [b97855aaf2a740f6616a2b67e32132ce], 

Physical Sectors: 0
(No malicious items detected)


(end)
As mentioned before the full version of Malwarebytes Anti-Malware 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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