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Adware:Win32/Sogou

First posted on 14 October 2015.
Source: Microsoft

Aliases :

There are no other names known for Adware:Win32/Sogou.

Explanation :

Threat behavior

Installation
This threat can create files on your PC, including:

• %CommonProgramFiles%\pushware\cpush.dll
• %CommonProgramFiles%\pushware\uninst.exe

It can make various registry changes during its installation, including:

In subkey: HKLM\Software\Classes\CLSID\{11F09AFD-75AD-4E51-AB43-E09E9351CE16}\InprocServer32

Sets value: "(default)"
With data: "%CommonProgramFiles%\pushware\cpush.dll"

In subkey: HKLM\Software\Classes\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\InprocServer32

Sets value: "(default)"
With data: "%CommonProgramFiles%\pushware\cpush.dll"

Sets value: "ThreadingModel"
With data: "apartment"

In subkey: HKLM\Software\Classes\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\InprocServer32

Sets value: "(default)"
With data: "%CommonProgramFiles%\pushware\cpush.dll"

In subkey: HKLM\Software\Classes\NewCosoMediumPop.PopCoso\CLSID

Sets value: "(default)"
With data: "{cde9eb54-a08e-4570-b748-13f5ddb5781c}"

In subkey: HKLM\Software\Classes\NexyAdPopup.AYLogic.1\CLSID

Sets value: "(default)"
With data: "{11f09afe-75ad-4e52-ab43-e09e9351ce17}"

In subkey: HKLM\Software\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\0\win32

Sets value: "(default)"
With data: "%CommonProgramFiles%\pushware\cpush.dll"

In subkey: HKLM\SOFTWARE\cpush\update

Sets value: "Ad_Version"
With data: "1,2,5,2"

In subkey: HKLM\SOFTWARE\MicroPlugins\Common

Sets value: "param"
With data: "sid=ad"

Sets value: "size"
With data: "0x010f6eaa"



This threat installs a browser helper object in Internet Explorer by modifying the registry. For example:

In subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}

Sets value: "(default)"
With data: "adpopup"



The malware uses code injection to make it harder to detect and remove. It can inject code into running processes.



Payload
Displays ads that you can't control

This program can show you extra ads. These ads can appear:

• In your web browser: such as search helpers, hover links, and banner ads.
• Outside of your web browser: such as pop ups, balloon ads, and toast notifications.

These advertisements would not be shown if this program wasn't installed on your PC.



Creates an uninstaller



This threat can create an uninstaller by modifying the registry. For example:

In subkey: HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall\ContentMatch

Sets value: "DisplayName"
With data: "adsense based popad"

Sets value: "UninstallString"
With data: "%CommonProgramFiles%\pushware\uninst.exe"



This malware description was published using automated analysis of file SHA1 5a9d1e27d4bee70402d317311bdecfdcd3c6de63.

Symptoms

The following can indicate that you have this threat on your PC:

• You see a file similar to:
  • %CommonProgramFiles%\pushware\cpush.dll
  • %CommonProgramFiles%\pushware\uninst.exe

• You see registry modifications such as:
  
  • In subkey: HKLM\Software\Classes\CLSID\{11F09AFD-75AD-4E51-AB43-E09E9351CE16}\InprocServer32
    Sets value: "(default)"
    With data: "%CommonProgramFiles%\pushware\cpush.dll"
    
    
  • In subkey: HKLM\Software\Classes\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\InprocServer32
    Sets value: "(default)"
    With data: "%CommonProgramFiles%\pushware\cpush.dll"
    
    
  • In subkey: HKLM\Software\Classes\CLSID\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}\InprocServer32
    Sets value: "ThreadingModel"
    With data: "apartment"
    
    
  • In subkey: HKLM\Software\Classes\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\InprocServer32
    Sets value: "(default)"
    With data: "%CommonProgramFiles%\pushware\cpush.dll"
    
    
  • In subkey: HKLM\Software\Classes\CLSID\{CDE9EB54-A08E-4570-B748-13F5DDB5781C}\InprocServer32
    Sets value: "ThreadingModel"
    With data: "apartment"
    
    
  • In subkey: HKLM\Software\Classes\NewCosoMediumPop.PopCoso.1\CLSID
    Sets value: "(default)"
    With data: "{cde9eb54-a08e-4570-b748-13f5ddb5781c}"
    
    
  • In subkey: HKLM\Software\Classes\NewCosoMediumPop.PopCoso\CLSID
    Sets value: "(default)"
    With data: "{cde9eb54-a08e-4570-b748-13f5ddb5781c}"
    
    
  • In subkey: HKLM\Software\Classes\NexyAdPopup.AYLogic.1\CLSID
    Sets value: "(default)"
    With data: "{11f09afe-75ad-4e52-ab43-e09e9351ce17}"
    
    
  • In subkey: HKLM\Software\Classes\NexyAdPopup.AYLogic\CLSID
    Sets value: "(default)"
    With data: "{11f09afe-75ad-4e52-ab43-e09e9351ce17}"
    
    
  • In subkey: HKLM\Software\Classes\TypeLib\{DE2267BD-B163-407F-9E8D-6ADEC771E7AB}\1.0\0\win32
    Sets value: "(default)"
    With data: "%CommonProgramFiles%\pushware\cpush.dll"
    
    
  • In subkey: HKLM\SOFTWARE\cpush\update
    Sets value: "Ad_Version"
    With data: "1,2,5,2"
    
    
  • In subkey: HKLM\SOFTWARE\MicroPlugins\Common
    Sets value: "backup"
    With data: "0x001a2f2a"
    
    
  • In subkey: HKLM\SOFTWARE\MicroPlugins\Common
    Sets value: "param"
    With data: "sid=ad"
    
    
  • In subkey: HKLM\SOFTWARE\MicroPlugins\Common
    Sets value: "size"
    With data: "0x010f6eaa"
    
    
  • In subkey: HKLM\SOFTWARE\MicroPlugins\Common
    Sets value: "tlen"
    With data: "0x020d6311"
    
    
  • In subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{11F09AFE-75AD-4E52-AB43-E09E9351CE17}
    Sets value: "(default)"
    With data: "adpopup"
    
    
  • In subkey: HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall\ContentMatch
    Sets value: "DisplayName"
    With data: "adsense based popad"
    
    
  • In subkey: HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall\ContentMatch
    Sets value: "UninstallString"
    With data: "%CommonProgramFiles%\pushware\uninst.exe"
    
    

Last update 14 October 2015

 

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