Trojan.Click1.42523

Trojan.Click1.42523

Added to the Dr.Web virus database: 2011-06-11

Virus description added: 2011-06-14

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Classes\mhtmlfile\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.exe" -nohome'
[<HKLM>\SOFTWARE\Classes\htmlfile\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.exe" -nohome'
[<HKLM>\SOFTWARE\Classes\InternetShortcut\shell\open\command] '' = 'rundll32.exe shdocvw.dll,OpenURL %l'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks] '{AEB6717E-7E19-11d0-97EE-00C04FD91972}' = ''
[<HKLM>\SOFTWARE\Classes\Applications\iexplore.exe\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.exe" %1'
[<HKLM>\SOFTWARE\Classes\HTTP\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.exe" -nohome'
[<HKLM>\SOFTWARE\Classes\InternetShortcut\shell\open\command] '' = 'rundll32.exe url.dll,OpenURL %l'
[<HKLM>\SOFTWARE\Classes\https\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.exe" -nohome'
[<HKLM>\SOFTWARE\Classes\gopher\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.exe" -nohome'
[<HKLM>\SOFTWARE\Classes\ftp\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.exe" %1'

Malicious functions:

Executes the following:

<SYSTEM32>\cmd.exe /c ""%PROGRAM_FILES%\soft115209\300.bat" "
<SYSTEM32>\shmgrate.exe OCInstallShowIE
<SYSTEM32>\wscript.exe "%PROGRAM_FILES%\soft115209\b_1109.vbs"
%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE http://www.17##g.com/lianjie/10608.htm
%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE http://ta##rl.com/6jb4v

Sets a new unauthorized home page for Windows Internet Explorer.

Modifies file system :

Creates the following files:

%TEMP%\RGI3.tmp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\10608[1].htm
%TEMP%\RGI4.tmp
%TEMP%\nsm2.tmp\NSISdl.dll
%PROGRAM_FILES%\soft115209\a
%PROGRAM_FILES%\soft115209\B_0920110906090905520911090909.txt
%PROGRAM_FILES%\soft115209\0920110906090905520911090909.txt
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\6jb4v[1]
%PROGRAM_FILES%\soft115209\CoralExplorer_200402.exe
%TEMP%\RGI9.tmp
%TEMP%\RGIA.tmp
%TEMP%\RGI8.tmp
%TEMP%\RGI5.tmp
%TEMP%\RGI6.tmp
%TEMP%\RGI7.tmp
%PROGRAM_FILES%\jishu_115209\newnew.ini
%PROGRAM_FILES%\jishu_115209\ImgCache\www.2144.net_favicon.ico
%PROGRAM_FILES%\jishu_115209\sc\126НшЦ·ґуИ«ЙПНшЧо·Ѕ±г.url
%PROGRAM_FILES%\jishu_115209\newnew.exe
%TEMP%\nsm2.tmp\FindProcDLL.dll
%PROGRAM_FILES%\jishu_115209\FlashIcon.ico
%PROGRAM_FILES%\jishu_115209\dailytips.ini
%PROGRAM_FILES%\jishu_115209\sc\2144РЎУОП·--і¬ј¶єГНжЈ¬АЦєЗєЗ.url
%PROGRAM_FILES%\jishu_115209\sc\НшЙП№єОпНшЦ·ґуИ«-Нш№єµЪТ»Хѕ.url
%ALLUSERSPROFILE%\Desktop\ Intornot Exploror .lnk
%APPDATA%\Microsoft\Internet Explorer\Quick Launch\ Intornot Exploror .lnk
%PROGRAM_FILES%\jishu_115209\sc\ГїМмНЕ№єТ»ПВ-ѕЫ±гТЛ.url
%PROGRAM_FILES%\jishu_115209\sc\GoogleЛСЛч.url
%PROGRAM_FILES%\jishu_115209\sc\ІКЖ±їЄЅ±ІйСЇ-ФЪПЯВтІКЖ±.url
%PROGRAM_FILES%\jishu_115209\sc\»Ж№ПµзУ°Нш-ФЪПЯµзУ°.url

Sets the 'hidden' attribute to the following files:

Deletes the following files:

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP:

Miscellaneous:

Searches for the following windows: