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Trojan.Click3.28495

Added to the Dr.Web virus database: 2019-10-30

Virus description added:

Technical Information

Malicious functions
Executes the following
  • '%ProgramFiles(x86)%\internet explorer\iexplore.exe' http://dh##.707821.com
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system
Creates the following files
  • %TEMP%\ie.ico
  • <LS_APPDATA>\temp.db
  • <LS_APPDATA>\google\chrome\user data\default\bookmarks
  • %APPDATA%\temp\temai.png
  • %APPDATA%\temp\temai.ico
  • %APPDATA%\temp\cpgm.png
  • %APPDATA%\temp\cpgm.ico
  • %APPDATA%\temp\ybhs.png
  • %APPDATA%\temp\ybhs.ico
  • %APPDATA%\temp\toutiao.png
  • %APPDATA%\temp\toutiao.ico
  • %APPDATA%\temp\tmmarket.png
  • %APPDATA%\temp\tmmarket.ico
  • %APPDATA%\temp\tmall.png
  • %APPDATA%\temp\tmall.ico
  • %APPDATA%\tempurl.url
  • %APPDATA%\temp\ydml.png
  • %APPDATA%\temp\jhs.png
  • %APPDATA%\temp\jhs.ico
  • %APPDATA%\temp\jd.png
  • %APPDATA%\temp\jd.ico
  • %APPDATA%\temp\aitb.png
  • %APPDATA%\temp\aitb.ico
  • %APPDATA%\temp\hhts3.png
  • %APPDATA%\temp\hhts3.ico
  • %APPDATA%\temp\cqfd3.png
  • %APPDATA%\temp\cqfd3.ico
  • %APPDATA%\temp\wangzdh.png
  • %APPDATA%\temp\wangzdh.ico
  • %APPDATA%\temp\baidu.png
  • %APPDATA%\temp\baidu.ico
  • %APPDATA%\temp\ydml.ico
  • <LS_APPDATA>\microsoft\windows\history\history.ie5\mshist012019102520191026\index.dat
Deletes the following files
  • <LS_APPDATA>\temp.db
  • %APPDATA%\tempurl.url
Substitutes the following files
  • %APPDATA%\tempurl.url
Network activity
Connects to
  • '12###.sogoucdn.com':443
TCP
HTTP GET requests
  • http://gg#####.box.720891.com/pinforesults.do?sc#########################################################################################################
  • http://po##.dgygpx.com/yxh/navico/temai.png
  • http://po##.dgygpx.com/yxh/navico/temai.ico
  • http://ym##.#gdebao.com/yxh/navico/cpgm.png
  • http://ym##.#gdebao.com/yxh/navico/cpgm.ico
  • http://po##.dgygpx.com/yxh/navico/ybhs.png
  • http://po##.dgygpx.com/yxh/navico/ybhs.ico
  • http://po##.dgygpx.com/yxh/navico/toutiao.png
  • http://po##.dgygpx.com/yxh/navico/toutiao.ico
  • http://po##.dgygpx.com/yxh/navico/tmmarket.png
  • http://po##.dgygpx.com/yxh/navico/tmmarket.ico
  • http://po##.dgygpx.com/yxh/navico/tmall.png
  • http://po##.dgygpx.com/yxh/navico/tmall.ico
  • http://po##.dgygpx.com/yxh/navico/ydml.png
  • http://po##.dgygpx.com/yxh/navico/ydml.ico
  • http://dh##.707821.com/
  • http://po##.dgygpx.com/yxh/navico/jhs.png
  • http://po##.dgygpx.com/yxh/navico/jd.png
  • http://po##.dgygpx.com/yxh/navico/jd.ico
  • http://ym##.#gdebao.com/yxh/navico/aitb.png
  • http://ym##.#gdebao.com/yxh/navico/aitb.ico
  • http://po##.dgygpx.com/yxh/navico/hhts3.png
  • http://po##.dgygpx.com/yxh/navico/hhts3.ico
  • http://po##.dgygpx.com/yxh/navico/cqfd3.png
  • http://po##.dgygpx.com/yxh/navico/cqfd3.ico
  • http://po##.dgygpx.com/yxh/navico/wangzdh.png
  • http://po##.dgygpx.com/yxh/navico/wangzdh.ico
  • http://po##.dgygpx.com/yxh/navico/baidu.png
  • http://po##.dgygpx.com/yxh/navico/baidu.ico
  • http://bo##.720891.com/api/tempip.ashx?ac#################################
  • http://eo##.dgygpx.com/yxh/img/nwie.ico
  • http://po##.dgygpx.com/yxh/navico/jhs.ico
  • http://dh##.707821.com/favicon.ico
UDP
  • DNS ASK gg#####.box.720891.com
  • DNS ASK eo##.dgygpx.com
  • DNS ASK ba##u.com
  • DNS ASK bo##.720891.com
  • DNS ASK po##.dgygpx.com
  • DNS ASK ym##.#gdebao.com
  • DNS ASK dh##.707821.com
  • DNS ASK s1#.#nzz.com
  • DNS ASK z8.#nzz.com
  • DNS ASK c.##zz.com
  • DNS ASK cn##.mmstat.com
  • DNS ASK 12#.#ogou.com
  • DNS ASK up###.sogoucdn.com
  • DNS ASK 12###.sogoucdn.com
Miscellaneous
Searches for the following windows
  • ClassName: 'Static' WindowName: ''
  • ClassName: 'MS_AutodialMonitor' WindowName: ''
  • ClassName: 'MS_WebCheckMonitor' WindowName: ''
Creates and executes the following
  • '%WINDIR%\syswow64\attrib.exe' +r "c:\users\public\desktop\google chrome.lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\internet explorer\quick launch\google chrome.lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\google chrome.lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "c:\users\public\desktop\mozilla firefox.lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "%PROGRAMDATA%\microsoft\windows\start menu\programs\mozilla firefox.lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\internet explorer (no add-ons).lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\windows\start menu\programs\internet explorer (64-bit).lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\windows\start menu\programs\internet explorer.lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\internet explorer\quick launch\launch internet explorer browser.lnk"' (with hidden window)
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\internet explorer.lnk"' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\attrib.exe' +r "c:\users\public\desktop\google chrome.lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\internet explorer\quick launch\google chrome.lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\google chrome.lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "c:\users\public\desktop\mozilla firefox.lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "%PROGRAMDATA%\microsoft\windows\start menu\programs\mozilla firefox.lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\windows\start menu\programs\accessories\system tools\internet explorer (no add-ons).lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\windows\start menu\programs\internet explorer (64-bit).lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\windows\start menu\programs\internet explorer.lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\internet explorer\quick launch\launch internet explorer browser.lnk"
  • '%WINDIR%\syswow64\attrib.exe' +r "%APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\internet explorer.lnk"

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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Download by serial number

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.

Download Dr.Web

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