Trojan.DownLoad3.34275

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'GreenDou' = '%ProgramFiles(x86)%\greendou\greendou.exe'

Malicious functions

Sets a new unauthorized home page for Windows Internet Explorer.

Modifies file system

Creates the following files

%TEMP%\nsx841e.tmp\nsisdl.dll
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_undo2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_undo.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_search2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_search.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_page_zoom2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_page_zoom.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_new2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_new.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_history2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_history.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_back.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_favorites2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\shared\16_new.png
%ProgramFiles(x86)%\greendou\bin\skin\default\shared\16_edit.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\24_go2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\24_go.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\16_website_info.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\16_page.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\16_open_in_new.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\16_open_in_bg.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\16_folder_open.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\16_folder_closed.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\16_favorites.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_back2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_back3.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_forward.png
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\ugsx1com\background_gradient[1]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\bm8skz0v\httperrorpagesscripts[1]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\bm8skz0v\errorpagestrings[2]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\0y9o17dr\errorpagetemplate[1]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\0y9o17dr\navcancl[2]
%LOCALAPPDATA%\microsoft\internet explorer\msimgsiz.dat
%HOMEPATH%\desktop\ГўГ¬В¶В№Г¤ВЇГ Г Г¦Г·.lnk
%APPDATA%\microsoft\windows\start menu\programs\ГўГ¬В¶В№Г¤ВЇГ Г Г¦Г·\ГўГ¬В¶В№Г¤ВЇГ Г Г¦Г·.lnk
%ProgramFiles(x86)%\greendou\unins.exe
%ProgramFiles(x86)%\greendou\ico\taobao.ico
%ProgramFiles(x86)%\greendou\ico\ie.ico
%ProgramFiles(x86)%\greendou\ico\anquan.ico
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_stop2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_stop.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_refresh2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_refresh.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_new3.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_new2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_new.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_home2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_home.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_forward3.png
%ProgramFiles(x86)%\greendou\bin\skin\default\toolbar\24_forward2.png
%ProgramFiles(x86)%\greendou\bin\skin\default\misc\16_ad_hunter.png
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\qkr46vql\info_48[1]
%ProgramFiles(x86)%\greendou\bin\skin\default\control\win_restore.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\win_maximum.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\button_checked.png
%ProgramFiles(x86)%\greendou\bin\skin\default\mskin.ini
%ProgramFiles(x86)%\greendou\bin\profile\template\start\images\logo2.gif
%ProgramFiles(x86)%\greendou\bin\profile\template\start\images\logo.gif
%ProgramFiles(x86)%\greendou\bin\profile\template\start\images\header_logo.gif
%ProgramFiles(x86)%\greendou\bin\profile\template\start\images\header_bg.gif
%ProgramFiles(x86)%\greendou\bin\profile\template\start\images\dian.gif
%ProgramFiles(x86)%\greendou\bin\profile\template\start\style.css
%ProgramFiles(x86)%\greendou\bin\profile\template\start\left.html
%ProgramFiles(x86)%\greendou\bin\profile\template\start\index.html
%ProgramFiles(x86)%\greendou\bin\skin\default\control\button_hover.png
%ProgramFiles(x86)%\greendou\bin\profile\searchengine\taobao.ico
%ProgramFiles(x86)%\greendou\bin\profile\searchengine\config.ini
%ProgramFiles(x86)%\greendou\bin\profile\searchengine\baidu.ico
%ProgramFiles(x86)%\greendou\bin\profile\defaults\last.ini
%ProgramFiles(x86)%\greendou\bin\profile\defaults\config.ini
%ProgramFiles(x86)%\greendou\bin\profile\defaults\commandbars.ini
%ProgramFiles(x86)%\greendou\bin\home.bat
%ProgramFiles(x86)%\greendou\bin\gdad.exe
%ProgramFiles(x86)%\greendou\bin\popwinparam.xml
%ProgramFiles(x86)%\greendou\bin\greendou.exe
%ProgramFiles(x86)%\greendou\greendou.exe
%ProgramFiles(x86)%\greendou\bin\profile\searchengine\google.ico
%ProgramFiles(x86)%\greendou\bin\skin\default\control\button_pressed.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\menuitem_hover.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\combo.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\win_close.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\title_bg.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_sidebar_hover.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_sidebar.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_new_hover.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_new.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_inactive.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_hover.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_close_hover.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_close.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_bg.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\tab_active.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\status_bar_bg.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\skin_selector.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\sidebar_tab_inactive.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\sidebar_tab_active.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\progress.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\mainframe.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\combosearch_dropdown_hover.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\combosearch_dropdown.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\combo_hover.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\combo_dropdown_hover.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\combo_dropdown.png
%ProgramFiles(x86)%\greendou\bin\skin\default\control\win_minimize.png
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\ugsx1com\bullet[1]

Deletes the following files

%TEMP%\nsx841e.tmp\nsisdl.dll
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\0y9o17dr\navcancl[1]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\bm8skz0v\errorpagetemplate[2]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\bm8skz0v\errorpagestrings[1]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\ugsx1com\httperrorpagesscripts[1]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\qkr46vql\background_gradient[1]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\ugsx1com\info_48[1]
%LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\qkr46vql\bullet[1]

Network activity

Connects to

'bi#o.cc':80

TCP

HTTP GET requests

http://www.bi#o.cc/ld/stat.asp?op##

UDP

DNS ASK wt#.#xkx.org
DNS ASK e4.#d01.org
DNS ASK 52##me.org
DNS ASK bi#o.cc
DNS ASK md##w.org
DNS ASK up####.035668.com
DNS ASK up####.180308.com

Miscellaneous

Searches for the following windows

ClassName: 'IIEFrame' WindowName: ''
ClassName: 'MS_AutodialMonitor' WindowName: ''
ClassName: 'MS_WebCheckMonitor' WindowName: ''

Creates and executes the following

'%ProgramFiles(x86)%\greendou\greendou.exe'
'%ProgramFiles(x86)%\greendou\bin\greendou.exe'
'%ProgramFiles(x86)%\greendou\bin\gdad.exe'
'%WINDIR%\syswow64\cmd.exe' /c ""%ProgramFiles(x86)%\greendou\bin\home.bat" "' (with hidden window)
'%ProgramFiles(x86)%\greendou\bin\greendou.exe' ' (with hidden window)
'%ProgramFiles(x86)%\greendou\bin\gdad.exe' ' (with hidden window)

Executes the following

'%WINDIR%\syswow64\cmd.exe' /c ""%ProgramFiles(x86)%\greendou\bin\home.bat" "
'%WINDIR%\syswow64\reg.exe' add "HKCR\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shell\OpenHomePage\Command" /v "" /t reg_expand_sz /d "%ProgramFiles%\Internet Explorer\iexplore.exe http://www.pz100.pw" /f
'%WINDIR%\syswow64\reg.exe' add "HKCU\SOFTWARE\Policies\Microsoft\Internet Explorer\Main" /v "Start Page" /d "http://www.pz100.pw" /f
'%WINDIR%\syswow64\reg.exe' add "HKCU\SOFTWARE\Microsoft\Internet Explorer\Main" /v "Start Page" /d "http://www.pz100.pw" /f

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

アンチウイルスに関する誤解と噂

Technical Information

Curing recommendations

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