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Trojan.Click1.43920

Added to the Dr.Web virus database: 2011-06-18

Virus description added:

Technical Information

Malicious functions:
Executes the following:
  • <SYSTEM32>\ping.exe 127.0.0.1 -n 3
  • %PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE http://www.50#5.cn/?ne####
Modifies file system :
Creates the following files:
  • %HOMEPATH%\Favorites\【淘宝风云榜】.url
  • %HOMEPATH%\Favorites\【疯狂购物】.url
  • %HOMEPATH%\Favorites\【当当商城】.url
  • %HOMEPATH%\Favorites\【淘宝特卖】.url
  • %HOMEPATH%\Favorites\在线网游.url
  • %HOMEPATH%\Favorites\实用查询.url
  • %HOMEPATH%\Favorites\【网址导航】.url
  • %HOMEPATH%\Favorites\【美容秘籍】.url
  • %HOMEPATH%\Favorites\【台湾美食】.url
  • %TEMP%\aut14.tmp
  • %PROGRAM_FILES%\TheWorld3\2\百度.url
  • %TEMP%\aut13.tmp
  • %PROGRAM_FILES%\TheWorld3\2\电视直播.url
  • %HOMEPATH%\Favorites\【凡客诚品】.url
  • %HOMEPATH%\Favorites\【卓越特价商城】.url
  • %TEMP%\aut15.tmp
  • %PROGRAM_FILES%\TheWorld3\2\系统下载.url
  • %HOMEPATH%\Favorites\家居玩具.url
  • %TEMP%\aut16.tmp
  • %TEMP%\aut17.tmp
  • %ALLUSERSPROFILE%\Start Menu\Programs\世界之窗浏览器.txt
  • %APPDATA%\Microsoft\Internet Explorer\Quick Launch\世界之窗浏览器.txt
  • %TEMP%\aut1A.tmp
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\5015[1]
  • %TEMP%\aut18.tmp
  • %TEMP%\aut19.tmp
  • %ALLUSERSPROFILE%\Start Menu\世界之窗浏览器.txt
  • %HOMEPATH%\Favorites\游戏下载.url
  • %HOMEPATH%\Favorites\电视直播.url
  • %HOMEPATH%\Favorites\家电商城.url
  • %HOMEPATH%\Favorites\淘宝网.url
  • C:\世界之窗浏览器.lnk
  • %ALLUSERSPROFILE%\Desktop\世界之窗浏览器.txt
  • %HOMEPATH%\Favorites\百度.url
  • %HOMEPATH%\Favorites\系统下载.url
  • %PROGRAM_FILES%\TheWorld3\2\游戏下载.url
  • %PROGRAM_FILES%\TheWorld3\2\【台湾美食】.url
  • %TEMP%\aut7.tmp
  • %PROGRAM_FILES%\TheWorld3\2\【卓越特价商城】.url
  • %TEMP%\aut6.tmp
  • %PROGRAM_FILES%\TheWorld3\2\【淘宝特卖】.url
  • %TEMP%\aut9.tmp
  • %PROGRAM_FILES%\TheWorld3\2\【当当商城】.url
  • %TEMP%\aut8.tmp
  • %TEMP%\aut5.tmp
  • %TEMP%\aut2.tmp
  • %PROGRAM_FILES%\TheWorld3\世界之窗.ini
  • %TEMP%\aut1.tmp
  • %PROGRAM_FILES%\TheWorld3\世界之窗.exe
  • %TEMP%\aut4.tmp
  • %PROGRAM_FILES%\TheWorld3\2\【凡客诚品】.url
  • %TEMP%\aut3.tmp
  • %PROGRAM_FILES%\TheWorld3\2\favorder3.dat
  • %PROGRAM_FILES%\TheWorld3\2\【淘宝风云榜】.url
  • %PROGRAM_FILES%\TheWorld3\2\家居玩具.url
  • %TEMP%\aut10.tmp
  • %PROGRAM_FILES%\TheWorld3\2\实用查询.url
  • %TEMP%\autF.tmp
  • %PROGRAM_FILES%\TheWorld3\2\淘宝网.url
  • %TEMP%\aut12.tmp
  • %PROGRAM_FILES%\TheWorld3\2\家电商城.url
  • %TEMP%\aut11.tmp
  • %TEMP%\autE.tmp
  • %TEMP%\autB.tmp
  • %PROGRAM_FILES%\TheWorld3\2\【网址导航】.url
  • %TEMP%\autA.tmp
  • %PROGRAM_FILES%\TheWorld3\2\【疯狂购物】.url
  • %TEMP%\autD.tmp
  • %PROGRAM_FILES%\TheWorld3\2\在线网游.url
  • %TEMP%\autC.tmp
  • %PROGRAM_FILES%\TheWorld3\2\【美容秘籍】.url
Sets the 'hidden' attribute to the following files:
  • %PROGRAM_FILES%\TheWorld3\世界之窗.ini
Deletes the following files:
  • %TEMP%\aut11.tmp
  • %TEMP%\aut12.tmp
  • %TEMP%\aut13.tmp
  • %TEMP%\autE.tmp
  • %TEMP%\autF.tmp
  • %TEMP%\aut10.tmp
  • %TEMP%\aut14.tmp
  • %TEMP%\aut18.tmp
  • %TEMP%\aut19.tmp
  • %TEMP%\aut1A.tmp
  • %TEMP%\aut15.tmp
  • %TEMP%\aut16.tmp
  • %TEMP%\aut17.tmp
  • %TEMP%\aut4.tmp
  • %TEMP%\aut5.tmp
  • %TEMP%\aut6.tmp
  • %TEMP%\aut1.tmp
  • %TEMP%\aut2.tmp
  • %TEMP%\aut3.tmp
  • %TEMP%\aut7.tmp
  • %TEMP%\autB.tmp
  • %TEMP%\autC.tmp
  • %TEMP%\autD.tmp
  • %TEMP%\aut8.tmp
  • %TEMP%\aut9.tmp
  • %TEMP%\autA.tmp
Deletes itself.
Network activity:
Connects to:
  • 'localhost':1038
  • 'www.50#5.cn':80
  • 'localhost':1035
  • 'www.40##0.cn':80
TCP:
HTTP GET requests:
  • www.50#5.cn/?ne####
  • www.40##0.cn/th3/Count.asp?ma###################################################
UDP:
  • DNS ASK www.50#5.cn
  • DNS ASK www.40##0.cn
Miscellaneous:
Searches for the following windows:
  • ClassName: 'MS_WebcheckMonitor' WindowName: ''
  • ClassName: '' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'MS_AutodialMonitor' 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