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Trojan.MulDrop2.56327

Added to the Dr.Web virus database: 2011-08-10

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates the following files on removable media:
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\视频教程网 下载中心 计算机.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\世纪前线—宽带速率测试.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\绿色下载站首页.url
  • <Drive name for removable media>:\My Documents\Favorites\银行金融\兴业银行.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\新浪下载首页_科技时代_新浪网.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\手机号码归属地查询.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\金山爱词霸在线英汉翻译.url
  • <Drive name for removable media>:\My Documents\Favorites\银行金融\交通银行.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\基金净值查询.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\绿色下载吧.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\绿色软件联盟.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\精美壁纸 桌酷壁纸站.url
  • <Drive name for removable media>:\My Documents\Favorites\迅雷看看-免费高清影视.url
  • <Drive name for removable media>:\My Documents\Favorites\银行金融\中国银行.url
  • <Drive name for removable media>:\My Documents\Favorites\银行金融\中国农业银行.url
  • <Drive name for removable media>:\My Documents\Favorites\淘宝网 - 淘!我喜欢.url
  • <Drive name for removable media>:\My Documents\Favorites\最新系统下载交流.url
  • <Drive name for removable media>:\My Documents\Favorites\哈哈115网址导航.url
  • <Drive name for removable media>:\My Documents\Favorites\银行金融\中国工商银行.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\在线翻译_英汉互译.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\雨林木风软件下载.url
  • <Drive name for removable media>:\My Documents\Favorites\银行金融\中国民生银行.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\中国教程网论坛 学习交流平台.url
  • <Drive name for removable media>:\My Documents\Favorites\银行金融\中国建设银行.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\火车时刻查询.url
  • <Drive name for removable media>:\My Documents\Favorites\Desktop.ini
  • <Drive name for removable media>:\My Documents\My Music\My Playlists\DesktopX Playlist.wpl
  • <Drive name for removable media>:\My Documents\My Videos\Desktop.ini
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\IP地址、手机号码、天气查询.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\IP、邮政、手机号码查询.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\GHOST技术交流区.url
  • <Drive name for removable media>:\movefiles.cmd
  • <Drive name for removable media>:\Favorites.exe
  • <Drive name for removable media>:\newpath.reg
  • <Drive name for removable media>:\My Documents\My Pictures\Desktop.ini
  • <Drive name for removable media>:\My Documents\My Music\Desktop.ini
  • <Drive name for removable media>:\My Documents\desktop.ini
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\各类笔记本驱动(中关村在线).url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\霏凡软件站.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\电视节目查询.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\公交车-坐车查询.url
  • <Drive name for removable media>:\My Documents\Favorites\银行金融\更多银行保险站点.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\更多实用查询--+.url
  • <Drive name for removable media>:\My Documents\Favorites\软件下载\OFFICE精英俱乐部.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\IP归属地查询.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\IP地址手机归属地等查询.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\词霸在线英汉词典.url
  • <Drive name for removable media>:\My Documents\Favorites\实用查询\百年日历表(有农历).url
  • <Drive name for removable media>:\My Documents\Favorites\百度一下-你就知道.url
Malicious functions:
Creates and executes the following:
  • <Drive name for removable media>:\Favorites.exe 
Executes the following:
  • %WINDIR%\regedit.exe /s <Drive name for removable media>:\newpath.reg
Modifies file system :
Creates the following files:
  • %TEMP%\aut3.tmp
  • %TEMP%\aut2.tmp
  • %TEMP%\aut1.tmp
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\My Documents\Favorites\Desktop.ini
  • <Drive name for removable media>:\My Documents\desktop.ini
Deletes the following files:
  • <Drive name for removable media>:\newpath.reg
  • <Drive name for removable media>:\Favorites.exe
  • <Drive name for removable media>:\movefiles.cmd
  • %TEMP%\aut1.tmp
  • %TEMP%\aut2.tmp
  • %TEMP%\aut3.tmp
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'EDIT' WindowName: ''
  • ClassName: 'RegEdit_RegEdit' 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.

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