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[Metallica]

Content is republished with permission from Malwarebytes.

What is Coupoon?

The Malwarebytes research team has determined that Coupoon 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 Coupoon?

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



How did Coupoon get on my computer?

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

How do I remove Coupoon?

Our program Malwarebytes Anti-Malware can detect and remove this potentially unwanted program.
Please use their own uninstaller first, but I would advise to follow the steps below anyway.

• 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 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 Coupoon?

• No, together with the uninstaller, Malwarebytes' Anti-Malware removes Coupoon 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 Coupoon adware. �It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

Technical details for experts

You will see these signs in a HijackThis log:

O23 - Service: CoupoonService - Unknown owner - C:\Program Files\coupoon\iiwjljrnpc.exe
O23 - Service: tpydklloou32 - Unknown owner - C:\Program Files\015\tpydklloou32.exe

Possible signs in FRST logs:

 () C:\Program Files\015\tpydklloou32.exe
 () C:\Program Files\coupoon\iiwjljrnpc.exe
 R2 CoupoonService; C:\Program Files\coupoon\iiwjljrnpc.exe [151864 2015-04-03] ()
 R2 tpydklloou32; C:\Program Files\015\tpydklloou32.exe [622392 2015-04-08] ()
 R1 netfilter; C:\Windows\System32\drivers\netfilter.sys [31744 2015-04-03] (NetFilterSDK.com) [File not signed]
 () C:\end
 () C:\Program Files\coupoon
 () C:\Program Files\10
 () C:\Program Files\015
 (NetFilterSDK.com) C:\Windows\system32\Drivers\netfilter.sys

coupoon (HKLM\...\10) (Version: 2.0.1 - coupoon) <==== ATTENTION
() C:\Program Files\015\tpydklloou32.exe
() C:\Program Files\coupoon\iiwjljrnpc.exe
() C:\Program Files\coupoon\nfapi.dll
() C:\Program Files\coupoon\ProtocolFilters.dll

Alterations made by the installer:

File system details [View: All details] (Selection)
---------------------------------------------------
    Adds the folder C:\Program Files\015
       Adds the file tpydklloou32.exe"="4/8/2015 9:05 AM, 622392 bytes, A
    Adds the folder C:\Program Files\10
       Adds the file uninstaller.exe"="4/8/2015 9:05 AM, 107776 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_LOCAL_MACHINE\SOFTWARE\coupoon]
       "source"="REG_SZ", "10"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\10]
       "DisplayIcon"="REG_SZ", "C:\Program Files\10\uninstaller.exe"
       "DisplayName"="REG_SZ", "coupoon"
       "DisplayVersion"="REG_SZ", "2.0.1"
       "EstimatedSize"="REG_DWORD", 1024
       "Publisher"="REG_SZ", "coupoon"
       "UninstallString"="REG_SZ", "C:\Program Files\10\uninstaller.exe -source="10" -clean="1" "
       "URLInfoAbout"="REG_SZ", "${application_url}"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\tpydklloou32]
       "DisplayName"="REG_SZ", "tpydklloou32"
       "ErrorControl"="REG_DWORD", 1
       "FailureActions"="REG_BINARY, .....................6
       "ImagePath"="REG_EXPAND_SZ, "C:\Program Files\015\tpydklloou32.exe run options=10001010150000000000000000000000 source=10 stdout=reg:HKEY_LOCAL_MACHINE,Software\\MIA,MIA_ERROR "
       "ObjectName"="REG_SZ", "LocalSystem"
       "Start"="REG_DWORD", 2
       "Type"="REG_DWORD", 16

Malwarebytes Anti-Malware log:

Malwarebytes Anti-Malware
www.malwarebytes.org

Scan Date: 4/10/2015
Scan Time: 3:15:02 PM
Logfile: mbamCoupoon.txt
Administrator: Yes

Version: 2.01.0.1004
Malware Database: v2015.04.10.04
Rootkit Database: v2015.03.31.01
License: Free
Malware Protection: Disabled
Malicious Website Protection: Disabled
Self-protection: Disabled

OS: Windows 7 Service Pack 1
CPU: x86
File System: NTFS
User: Malwarebytes

Scan Type: Threat Scan
Result: Completed
Objects Scanned: 290100
Time Elapsed: 7 min, 19 sec

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

Processes: 3
PUP.Optional.Coupoon.A, C:\Program Files\015\tpydklloou32.exe, 3224, Delete-on-Reboot, [46a62a40b2d8c76fce1c142542c4a060]
PUP.Optional.Coupoon.A, C:\Program Files\015\tpydklloou32.exe, 3404, Delete-on-Reboot, [46a62a40b2d8c76fce1c142542c4a060]
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\iiwjljrnpc.exe, 2908, Delete-on-Reboot, [7a726505b3d7999dd416c77262a40000]

Modules: 4
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\libeay32.dll, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\nfapi.dll, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\ProtocolFilters.dll, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\ssleay32.dll, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 

Registry Keys: 5
PUP.Optional.Coupoon.A, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\tpydklloou32, Quarantined, [46a62a40b2d8c76fce1c142542c4a060], 
PUP.Optional.Coupoon.A, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\CoupoonService, Quarantined, [7a726505b3d7999dd416c77262a40000], 
PUP.Optional.Coupoon.A, HKLM\SOFTWARE\coupoon, Quarantined, [bc30bab0ccbe979f9163fd55d23334cc], 
PUP.Optional.Coupoon.A, HKU\S-1-5-18\SOFTWARE\APPDATALOW\SOFTWARE\coupoon, Quarantined, [a5475119abdf3ff726cc193949bcb050], 
PUP.Optional.GlobalUpdate.C, HKCU\SOFTWARE\GLOBALUPDATE\UPDATE\PROXY, Quarantined, [ffedd7934d3dbd7974fb02ba7291ad53], 

Registry Values: 3
PUP.Optional.GlobalUpdate.C, HKLM\SOFTWARE\GLOBALUPDATE\UPDATEDEV|AuCheckPeriodMs, 21600000, Quarantined, [27c534366327082ee6f025961ae9ff01]
PUP.Optional.AdPeak.A, HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\tpydklloou32|ImagePath, C:\Program Files\015\tpydklloou32.exe run options=10001010150000000000000000000000 source=10 stdout=reg:HKEY_LOCAL_MACHINE,Software\\MIA,MIA_ERROR , Quarantined, [e20a5614028841f55b9272e033d241bf]
PUP.Optional.GlobalUpdate.C, HKCU\SOFTWARE\GLOBALUPDATE\UPDATE\PROXY|source, IE, Quarantined, [ffedd7934d3dbd7974fb02ba7291ad53]

Registry Data: 0
(No malicious items detected)

Folders: 2
PUP.Optional.Coupoon.A, C:\Program Files\coupoon, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\SSL, Quarantined, [af3dda9054364cea238c5a6022e17b85], 

Files: 10
PUP.Optional.Coupoon.A, C:\Program Files\015\tpydklloou32.exe, Delete-on-Reboot, [46a62a40b2d8c76fce1c142542c4a060], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\iiwjljrnpc.exe, Delete-on-Reboot, [7a726505b3d7999dd416c77262a40000], 
PUP.Optional.Coupoon.A, C:\Users\{username}\Desktop\Coupoon.exe, Quarantined, [806c44267b0f5ed845a51920fd09b848], 
PUP.Optional.Coupoon.A, C:\Program Files\10\uninstaller.exe, Quarantined, [7a722545305a59dd45a53affbe4840c0], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\64.ico, Quarantined, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\libeay32.dll, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\nfapi.dll, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\nfregdrv.exe, Quarantined, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\ProtocolFilters.dll, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 
PUP.Optional.Coupoon.A, C:\Program Files\coupoon\ssleay32.dll, Delete-on-Reboot, [af3dda9054364cea238c5a6022e17b85], 

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.