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Removal instructions for WIN

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Content is republished with permission from Malwarebytes.

What is WIN?

The Malwarebytes research team has determined that WIN is adware. These adware applications display advertisements not originating from the sites you are browsing.
This one opens a new window or tab of your default browser every few minutes.

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

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


and this warning during install:


How did WIN get on my computer?

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

How do I remove WIN?

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 WIN?
  • No, Malwarebytes' Anti-Malware removes WIN 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 adware application.

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


and it will block connections to the servers that deliver the advertisements:


Technical details for experts

You may see these signs in FRST logs:
 () C:\Program Files (x86)\win_en_77\win_en_77.exe
 HKLM-x32\...\Run: [win_en_77] => C:\Program Files (x86)\win_en_77\win_en_77.exe [3970776 2016-02-19] ()
 C:\Program Files (x86)\win_en_77

WIN (HKLM-x32\...\win_en_77_is1) (Version:  - ) <==== ATTENTION
Alterations made by the installer:
File system details [View: All details] (Selection)
    Adds the folder C:\Program Files (x86)\win_en_77
       Adds the file win_en_77 - uninstall.dat"="2/24/2016 8:31 AM, 40888 bytes, A
       Adds the file win_en_77 - uninstall.exe"="2/24/2016 8:30 AM, 718497 bytes, A
       Adds the file win_en_77.exe"="2/19/2016 3:34 PM, 3970776 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Programs\Common
    Adds the folder C:\Users\{username}\AppData\Local\win_en_77\win_en_77\1.20
       Adds the file cnf.cyl"="2/24/2016 8:31 AM, 131 bytes, A
       Adds the file eorezo.cyl"="2/24/2016 8:36 AM, 69 bytes, A

Registry details [View: All details] (Selection)
       "win_en_77"="REG_SZ", ""C:\Program Files (x86)\win_en_77\win_en_77.exe""
       "DisplayName"="REG_SZ", "WIN"
       "EstimatedSize"="REG_DWORD", 4568
       "Inno Setup: App Path"="REG_SZ", "C:\Program Files (x86)\win_en_77"
       "Inno Setup: Icon Group"="REG_SZ", "WIN"
       "Inno Setup: Language"="REG_SZ", "default"
       "Inno Setup: Setup Version"="REG_SZ", "5.5.4 (a)"
       "Inno Setup: User"="REG_SZ", "{username}"
       "InstallDate"="REG_SZ", "20160224"
       "InstallLocation"="REG_SZ", "C:\Program Files (x86)\win_en_77\"
       "NoModify"="REG_DWORD", 1
       "NoRepair"="REG_DWORD", 1
       "QuietUninstallString"="REG_SZ", ""C:\Program Files (x86)\win_en_77\win_en_77 - uninstall.exe" /SILENT"
       "UninstallString"="REG_SZ", ""C:\Program Files (x86)\win_en_77\win_en_77 - uninstall.exe""
       "PathInstall"="REG_SZ", "C:\Program Files (x86)\win_en_77"

Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware

Scan Date: 2/24/2016
Scan Time: 8:44 AM
Logfile: mbamWIN.txt
Administrator: Yes

Malware Database: v2016.02.24.02
Rootkit Database: v2016.02.17.01
License: Premium
Malware Protection: Disabled
Malicious Website Protection: Disabled
Self-protection: Disabled

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

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 366860
Time Elapsed: 8 min, 44 sec

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

Processes: 2
PUP.Optional.CSDI, C:\Program Files (x86)\win_en_77\win_en_77.exe, 3960, Delete-on-Reboot, [790968fc6d2c132390591801f114b64a]
PUP.Optional.CSDI, C:\Program Files (x86)\win_en_77\win_en_77.exe, 3448, Delete-on-Reboot, [790968fc6d2c132390591801f114b64a]

Modules: 0
(No malicious items detected)

Registry Keys: 2
PUP.Optional.Tuto4PC, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\win_en_77_is1, Quarantined, [6c169ec69dfcec4a95868cdf36cefb05], 
PUP.Optional.Tuto4PC, HKLM\SOFTWARE\WOW6432NODE\WIN\win_en_77, Quarantined, [9ae82d37cecb2016fc20511a09fb619f], 

Registry Values: 1
PUP.Optional.CSDI, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN|win_en_77, "C:\Program Files (x86)\win_en_77\win_en_77.exe", Quarantined, [790968fc6d2c132390591801f114b64a]

Registry Data: 0
(No malicious items detected)

Folders: 4
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\win_en_77, Quarantined, [c0c2b6ae4e4b8ea8f442bd3e8280ff01], 
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\win_en_77\win_en_77, Quarantined, [c0c2b6ae4e4b8ea8f442bd3e8280ff01], 
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\win_en_77\win_en_77\1.20, Quarantined, [c0c2b6ae4e4b8ea8f442bd3e8280ff01], 
PUP.Optional.Tuto4PC, C:\Program Files (x86)\win_en_77, Delete-on-Reboot, [433f41230693e55139fef40726dca15f], 

Files: 6
PUP.Optional.CSDI, C:\Program Files (x86)\win_en_77\win_en_77.exe, Delete-on-Reboot, [790968fc6d2c132390591801f114b64a], 
PUP.Optional.Tuto4PC, C:\Users\{username}\Desktop\win.exe, Quarantined, [8af8263e1d7c261019d29ec09868dc24], 
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\win_en_77\win_en_77\1.20\cnf.cyl, Quarantined, [c0c2b6ae4e4b8ea8f442bd3e8280ff01], 
PUP.Optional.Tuto4PC, C:\Users\{username}\AppData\Local\win_en_77\win_en_77\1.20\eorezo.cyl, Quarantined, [c0c2b6ae4e4b8ea8f442bd3e8280ff01], 
PUP.Optional.Tuto4PC, C:\Program Files (x86)\win_en_77\win_en_77 - uninstall.dat, Quarantined, [433f41230693e55139fef40726dca15f], 
PUP.Optional.Tuto4PC, C:\Program Files (x86)\win_en_77\win_en_77 - uninstall.exe, Quarantined, [433f41230693e55139fef40726dca15f], 

Physical Sectors: 0
(No malicious items detected)

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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