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Profile

Trojan.StartPage.48902

Added to the Dr.Web virus database: 2012-11-12

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '<SYSTEM32>\logon.scr'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Start Page' = '<SYSTEM32>\ctfmon.exe'
  • [<HKLM>\SOFTWARE\Classes\HTTP\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE" -nohome'
Malicious functions:
Creates and executes the following:
  • %TEMP%\delsoft.exe
Executes the following:
  • <SYSTEM32>\ping.exe 127.0.0.1 -n 3
Modifies settings of Windows Internet Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'DisplayName' = 'Internet'
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
  • %HOMEPATH%\Favorites\XP主题下载,Win7主题下载-主题之家.url
  • %HOMEPATH%\Favorites\热门电视剧.url
  • %HOMEPATH%\Favorites\高清电影.url
  • C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\desktop.ini
  • %HOMEPATH%\Favorites\哇哇网 - 女性时尚导购分享社区.url
  • %HOMEPATH%\Favorites\软件下载 绿色软件 软件之家 - 绿色软件下载基地.url
  • %APPDATA%\Microsoft\Internet Explorer\Quick Launch\启动 Internet Explorer 浏览器.lnk
  • %TEMP%\delsoft.exe
  • %TEMP%\aut1.tmp
  • %HOMEPATH%\Favorites\淘宝购物.url
  • %HOMEPATH%\Favorites\XP系统下载,windows7系统下载,最新windows8系统下载_系统之家.url
  • %HOMEPATH%\Favorites\256安全导航.url
Deletes the following files:
  • %TEMP%\delsoft.exe
  • %TEMP%\aut1.tmp
Deletes itself.
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''

Curing recommendations

  1. 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.
  2. 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.

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

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Download by serial number

  1. 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.
  2. 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.

Find out more about Dr.Web for Android