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Removal instructions for maintenance software

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Metallica

Metallica

    Spyware Veteran

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Content is republished with permission from Malwarebytes.

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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