Trojan.StartPage.44015

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hwinfo' = '%WINDIR%\system\hwinfo.exe'

Malicious functions:

Creates and executes the following:

<SYSTEM32>\Fav2345.exe -y -o"%HOMEPATH%\Favorites"\
%WINDIR%\PCTools.exe -y -o"%ALLUSERSPROFILE%\Desktop"\
<SYSTEM32>\bhid.exe
<SYSTEM32>\Favorites.exe

Executes the following:

%WINDIR%\regedit.exe /s <SYSTEM32>\install_bh.reg
<SYSTEM32>\rundll32.exe USER32.DLL,UpdatePerUserSystemParameters
<SYSTEM32>\regini.exe <SYSTEM32>\oemie.ini

Sets a new unauthorized home page for Windows Internet Explorer.

Modifies file system :

Creates the following files:

%HOMEPATH%\Favorites\游戏777－热门单机游戏下载.url
%HOMEPATH%\Favorites\实用查询\星座运程和黄历查询.url
%HOMEPATH%\Favorites\实用查询\火车时刻表查询-2345实用查询.url
%HOMEPATH%\Favorites\实用查询\热门电影在线播放.url
%HOMEPATH%\Favorites\热门电影在线播放.url
%HOMEPATH%\Favorites\实用查询\手机号归属地查询.url
%HOMEPATH%\Favorites\实用查询\周公解梦查询.url
%HOMEPATH%\Favorites\2345网址导航－精选好网站大全.url
%HOMEPATH%\Favorites\多特软件站_国内最安全的下载站.url
%HOMEPATH%\Favorites\实用查询\快递查询-实时快件状态查询.url
%HOMEPATH%\Favorites\实用查询\天气预报-预报7天-精确到县城.url
%ALLUSERSPROFILE%\Desktop\装机必备\DirectX 9.0c.url
%TEMP%\autE.tmp
%WINDIR%\system\HWInfo.exe
%WINDIR%\inf\oem.ini
<SYSTEM32>\install_bh.reg
%TEMP%\autF.tmp
%TEMP%\autD.tmp
%ALLUSERSPROFILE%\Desktop\装机必备\OpenAL音效程序.url
%ALLUSERSPROFILE%\Desktop\装机必备\GFWLIVE微软游戏扩展服务程序.url
%ALLUSERSPROFILE%\Desktop\装机必备\PhysX物理加速驱动程序.url
%WINDIR%\system\HWInfo.dll
%TEMP%\autC.tmp
%HOMEPATH%\Favorites\实用查询\++ 更多实用查询 ++.url
%TEMP%\aut4.tmp
<SYSTEM32>\oemie.ini
<SYSTEM32>\mainie.exe
<SYSTEM32>\Favorites.exe
%TEMP%\aut5.tmp
%TEMP%\aut3.tmp
%TEMP%\aut1.tmp
<SYSTEM32>\oeminfo.ini
<SYSTEM32>\OEMLOGO.BMP
<SYSTEM32>\bhid.exe
%TEMP%\aut2.tmp
%TEMP%\aut6.tmp
%TEMP%\autA.tmp
%ALLUSERSPROFILE%\Start Menu\Internet Explorer.lnk
%ALLUSERSPROFILE%\Desktop\2345网址导航.lnk
<SYSTEM32>\Fav2345.exe
%TEMP%\autB.tmp
%TEMP%\aut9.tmp
%TEMP%\aut7.tmp
%WINDIR%\PCTools.exe
<SYSTEM32>\favicon2345.ico
%APPDATA%\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk
%TEMP%\aut8.tmp

Deletes the following files:

<SYSTEM32>\Fav2345.exe
<SYSTEM32>\Favorites.exe
%TEMP%\autA.tmp
%TEMP%\autB.tmp
%WINDIR%\PCTools.exe
%TEMP%\autE.tmp
%TEMP%\autF.tmp
%TEMP%\autC.tmp
%TEMP%\autD.tmp
%TEMP%\aut3.tmp
%TEMP%\aut4.tmp
%TEMP%\aut1.tmp
%TEMP%\aut2.tmp
%TEMP%\aut5.tmp
%TEMP%\aut8.tmp
%TEMP%\aut9.tmp
%TEMP%\aut6.tmp
%TEMP%\aut7.tmp

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''
ClassName: 'RegEdit_RegEdit' WindowName: ''
ClassName: 'Shell_TrayWnd' WindowName: ''

Curing recommendations

If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.

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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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Download on App Store

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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Download Dr.Web

Download by serial number

If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
- Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
- Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
- Switch off your device and turn it on as normal.

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