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Trojan.StartPage.42623

Added to the Dr.Web virus database: 2012-03-14

Virus description added:

Technical Information

Malicious functions:
Creates and executes the following:
  • <SYSTEM32>\AppData.exe
Executes the following:
  • <SYSTEM32>\cmd.exe /c ""%TEMP%\7ZSfx000.cmd" "
  • <SYSTEM32>\cacls.exe "%APPDATA%/SogouExplorer/config.xml" /g %USERNAME%:r
  • <SYSTEM32>\regini.exe regset_sd.ini
  • <SYSTEM32>\ping.exe 127.0.0.1 -n 1
  • <SYSTEM32>\regini.exe regset.ini
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\search.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\secmod.db
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\sessionstore.bak
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\search.json
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\places.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\pluginreg.dat
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\prefs.js
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\sessionstore.js
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\bookmarkbackups\bookmarks-2011-11-10.json
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Windows\Themes\Custom.theme
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Media Player\0007F0B7.wpl
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\chrome\userContent-example.css
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\signons.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\webappsstore.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\chrome\userChrome-example.css
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\compatibility.ini
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\content-prefs.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\cookies.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\chromeappsstore.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\profiles.ini
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\bookmarks.html
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\cert8.db
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\downloads.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\localstore.rdf
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\mimeTypes.rdf
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\permissions.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\key3.db
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\extensions.ini
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\extensions.sqlite
  • C:\Documents and Settings\Default User\Application Data\Mozilla\Firefox\Profiles\cwdgt0y8.default\formhistory.sqlite
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Internet Explorer\Desktop.htt
  • C:\Documents and Settings\Default User\Favorites\3699小游戏.url
  • C:\Documents and Settings\Default User\Favorites\机票购买.url
  • C:\Documents and Settings\Default User\Favorites\淘宝每日低价商品抢购中!.url
  • C:\Documents and Settings\Default User\Favorites\2626安全网址导航.url
  • C:\Documents and Settings\Default User\Application Data\360SE\360se_s.ini
  • C:\Documents and Settings\Default User\Application Data\360SE\data\360sefav.db
  • C:\Documents and Settings\Default User\Application Data\360SE\data\BlankData.ini
  • C:\Documents and Settings\Default User\Favorites\电脑技术网址大全.url
  • C:\Documents and Settings\Default User\Favorites\链接\淘宝每日低价商品抢购中!.url
  • C:\Documents and Settings\Default User\Favorites\链接\电脑技术网址大全.url
  • C:\Documents and Settings\Default User\Favorites\链接\系统之家-最新XP系统下载.url
  • C:\Documents and Settings\Default User\Favorites\链接\机票购买.url
  • C:\Documents and Settings\Default User\Favorites\系统之家-最新XP系统下载.url
  • C:\Documents and Settings\Default User\Favorites\链接\2626安全网址导航.url
  • C:\Documents and Settings\Default User\Favorites\链接\3699小游戏.url
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Address Book\%USERNAME%.wab
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Address Book\%USERNAME%.wab~
  • C:\Documents and Settings\Default User\Application Data\Maxthon3\Users\guest\QuickAccess\QaConfig.dat
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Internet Explorer\Quick Launch\Windows Media Player.lnk
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Internet Explorer\Quick Launch\desktop.ini
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Internet Explorer\Quick Launch\Launch Internet Explorer Browser.lnk
  • C:\Documents and Settings\Default User\Application Data\Microsoft\Internet Explorer\Quick Launch\Show Desktop.scf
  • C:\Documents and Settings\Default User\Application Data\Maxthon3\Users\guest\Favorite\Favorite.dat
  • C:\Documents and Settings\Default User\Application Data\CoralExplorer\Users\Default\StartPageConfig.data
  • C:\Documents and Settings\Default User\Application Data\360SE\360SE.ini
  • C:\Documents and Settings\Default User\Application Data\360SE\360seie6.ini
  • C:\Documents and Settings\Default User\Application Data\CoralExplorer\Users\Default\Favorites.data
  • C:\Documents and Settings\Default User\Application Data\Maxthon3\Users\guest\Config\config.dat
  • C:\Documents and Settings\Default User\Application Data\Maxthon3\Users\guest\Config\config.ini
  • C:\Documents and Settings\Default User\Application Data\CoralExplorer\Users\Default\Default.cfg
  • C:\Documents and Settings\Default User\Application Data\SogouExplorer\y.txt
  • %HOMEPATH%\Favorites\链接\2626安全网址导航.url
  • %TEMP%\autB.tmp
  • %HOMEPATH%\Favorites\链接\淘宝每日低价商品抢购中!.url
  • %TEMP%\autA.tmp
  • %HOMEPATH%\Favorites\3699小游戏.url
  • %TEMP%\aut9.tmp
  • %HOMEPATH%\Favorites\电脑技术网址大全.url
  • %TEMP%\autC.tmp
  • %HOMEPATH%\Favorites\链接\3699小游戏.url
  • %TEMP%\autF.tmp
  • %HOMEPATH%\Favorites\链接\电脑技术网址大全.url
  • %TEMP%\autE.tmp
  • %HOMEPATH%\Favorites\链接\系统之家-最新XP系统下载.url
  • %TEMP%\autD.tmp
  • %HOMEPATH%\Favorites\链接\机票购买.url
  • %TEMP%\aut3.tmp
  • <SYSTEM32>\regset_sd.ini
  • %TEMP%\aut4.tmp
  • <SYSTEM32>\regset.ini
  • %TEMP%\aut1.tmp
  • <SYSTEM32>\AppData.exe
  • %TEMP%\aut2.tmp
  • %HOMEPATH%\Favorites\2626安全网址导航.url
  • %TEMP%\aut7.tmp
  • %HOMEPATH%\Favorites\系统之家-最新XP系统下载.url
  • %TEMP%\aut8.tmp
  • %HOMEPATH%\Favorites\机票购买.url
  • %TEMP%\aut5.tmp
  • %HOMEPATH%\Favorites\淘宝每日低价商品抢购中!.url
  • %TEMP%\aut6.tmp
  • %TEMP%\aut10.tmp
  • %APPDATA%\CoralExplorer\Users\Default\StartPageConfig.data
  • %APPDATA%\Tencent\QQBrowser\webkit_cache\2\Local Storage\__0.localstorage
  • %TEMP%\7ZSfx000.cmd
  • %APPDATA%\CoralExplorer\Users\Default\Favorites.data
  • %APPDATA%\SogouExplorer\Favorite2.dat
  • %APPDATA%\Maxthon3\Users\guest\QuickAccess\QaConfig.dat
  • %APPDATA%\Tencent\TencentTraveler\100\TtConf.dat
  • C:\Documents and Settings\Default User\Application Data\winscp.rnd
  • C:\Documents and Settings\Default User\Application Data\Tencent\QQBrowser\user_data\0\config.db
  • C:\Documents and Settings\Default User\Application Data\SogouExplorer\config.xml
  • C:\Documents and Settings\Default User\Application Data\SogouExplorer\Favorite2.dat
  • C:\Documents and Settings\Default User\Application Data\Tencent\QQBrowser\user_data\0\Bookmarks
  • C:\Documents and Settings\Default User\Application Data\Tencent\TencentTraveler\100\navinfo.db
  • C:\Documents and Settings\Default User\Application Data\Tencent\TencentTraveler\100\TtConf.dat
  • C:\Documents and Settings\Default User\Application Data\Tencent\QQBrowser\webkit_cache\2\Local Storage\__0.localstorage
  • %APPDATA%\360SE\360SE.ini
  • %APPDATA%\360SE\360seie6.ini
  • %APPDATA%\360SE\360se_s.ini
  • %APPDATA%\SogouExplorer\y.txt
  • <SYSTEM32>\NTUSER.DAT
  • %APPDATA%\Tencent\QQBrowser\user_data\0\Bookmarks
  • %APPDATA%\SogouExplorer\config.xml
  • %APPDATA%\360SE\data\BlankData.ini
  • %APPDATA%\CoralExplorer\Users\Default\Default.cfg
  • %APPDATA%\Maxthon3\Users\guest\Config\config.dat
  • %APPDATA%\Maxthon3\Users\guest\Favorite\Favorite.dat
  • %APPDATA%\Tencent\TencentTraveler\100\navinfo.db
  • %APPDATA%\Maxthon3\Users\guest\Config\config.ini
  • %APPDATA%\360SE\data\360sefav.db
  • %APPDATA%\Tencent\QQBrowser\user_data\0\config.db
Sets the 'hidden' attribute to the following files:
  • %APPDATA%\CoralExplorer\Users\Default\StartPageConfig.data
Deletes the following files:
  • %TEMP%\autF.tmp
  • %TEMP%\aut10.tmp
  • %TEMP%\autE.tmp
  • %TEMP%\autC.tmp
  • %TEMP%\autD.tmp
  • <SYSTEM32>\regset.ini
  • <SYSTEM32>\regset_sd.ini
  • %APPDATA%\SogouExplorer\y.txt
  • <SYSTEM32>\AppData.exe
  • %TEMP%\7ZSfx000.cmd
  • %TEMP%\autB.tmp
  • %TEMP%\aut4.tmp
  • %TEMP%\aut5.tmp
  • %TEMP%\aut3.tmp
  • %TEMP%\aut1.tmp
  • %TEMP%\aut2.tmp
  • %TEMP%\aut9.tmp
  • %TEMP%\autA.tmp
  • %TEMP%\aut8.tmp
  • %TEMP%\aut6.tmp
  • %TEMP%\aut7.tmp
Deletes itself.

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