Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'baidu' = '%WINDIR%\ao\system.exe '
Creates or modifies the following files:
- %ALLUSERSPROFILE%\Start Menu\Programs\Startup\ie.vbe
- %ALLUSERSPROFILE%\Start Menu\Programs\Startup\index.vbe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Creates and executes the following:
- '%PROGRAM_FILES%\kw\vlm.exe'
- '%WINDIR%\ao\system.exe'
Executes the following:
- '<SYSTEM32>\wscript.exe' "%ALLUSERSPROFILE%\Start Menu\Programs\Startup\index.vbe" 0
- '<SYSTEM32>\cacls.exe' "%APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internt Explorer.1nk" /e /c /r users
- '<SYSTEM32>\regsvr32.exe' /s "%PROGRAM_FILES%\ab\dllvrawp.dll"
- '<SYSTEM32>\cacls.exe' "%APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internt Explorer.1nk" /e /c /r system
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Programs\Internt Explorer.1nk" /e /c /r user
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Programs\Internt Explorer.1nk" /e /c /r everyone
- '<SYSTEM32>\cacls.exe' "%APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internt Explorer.1nk" /e /c /r %USERNAME%
- '<SYSTEM32>\cacls.exe' "%APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internt Explorer.1nk" /e /c /r %USERNAME%s
- '<SYSTEM32>\cacls.exe' "%APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internt Explorer.1nk" /e /c /r everyone
- '%WINDIR%\regedit.exe' /s %WINDIR%\WindowsMy.reg
- '<SYSTEM32>\wscript.exe' %WINDIR%\del.tmp.bho.bho.vbs
- '%WINDIR%\regedit.exe' /s %WINDIR%\search.reg
- '%WINDIR%\regedit.exe' /s %WINDIR%\SIndex.reg
- '<SYSTEM32>\wscript.exe' %WINDIR%\del.tmp.vbs
- '<SYSTEM32>\cacls.exe' "%APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internt Explorer.1nk" /e /c /r user
- '%WINDIR%\regedit.exe' /s %WINDIR%\reg.reg
- '<SYSTEM32>\wscript.exe' "%WINDIR%\5\searchOld.vbe" 0
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Desktop\Internt Explorer.1nk" /e /c /r user
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Desktop\Internt Explorer.1nk" /e /c /r everyone
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Internt Explorer.1nk" /e /c /r %USERNAME%
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Internt Explorer.1nk" /e /c /r %USERNAME%s
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Desktop\Internt Explorer.1nk" /e /c /r %USERNAME%
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Desktop\Internt Explorer.1nk" /e /c /r %USERNAME%s
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Desktop\Internt Explorer.1nk" /e /c /r system
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Desktop\Internt Explorer.1nk" /e /c /r users
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Internt Explorer.1nk" /e /c /r users
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Programs\Internt Explorer.1nk" /e /c /r users
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Programs\Internt Explorer.1nk" /e /c /r %USERNAME%
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Programs\Internt Explorer.1nk" /e /c /r system
- '<SYSTEM32>\reg.exe' add HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v "baidu" /d "%WINDIR%\ao\system.exe " /f
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Internt Explorer.1nk" /e /c /r everyone
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Internt Explorer.1nk" /e /c /r system
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Programs\Internt Explorer.1nk" /e /c /r %USERNAME%s
- '<SYSTEM32>\cacls.exe' "%HOMEPATH%\Start Menu\Internt Explorer.1nk" /e /c /r user
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- %WINDIR%\5\searchOld.vbe
- %WINDIR%\WindowsMy.reg
- %WINDIR%\del.tmp.vbs
- %WINDIR%\reg.reg
- %WINDIR%\del.tmp.bho.bho.vbs
- %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.url
- %ALLUSERSPROFILE%\Start Menu\Programs\Internet Explorer.url
- %WINDIR%\SIndex.reg
- %WINDIR%\search.reg
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\work[1].aspx
- %WINDIR%\ao\system.exe
- %WINDIR%\userid.txt
- %PROGRAM_FILES%\kw\vlm.exe
- %PROGRAM_FILES%\ab\dllvrawp.dll
- %PROGRAM_FILES%\mygoogle\jgozgpjcfd.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\data[1].xml
- %WINDIR%\87\indexOlds.vbe
Deletes the following files:
- %ALLUSERSPROFILE%\Start Menu\Programs\Startup\ie.vbe
- %TEMP%\~DF1486.tmp
- %WINDIR%\del.tmp.bho.bho.vbs
- %TEMP%\~DF283E.tmp
- %PROGRAM_FILES%\kw\vlm.exe
- %WINDIR%\del.tmp.vbs
Deletes itself.
Network activity:
Connects to:
- 'localhost':1039
- 'st##.#ectime.com':80
- 'localhost':1036
- 'to####.dianxin.cn':80
TCP:
HTTP GET requests:
- st##.#ectime.com/data.xml
- to####.dianxin.cn/api/work.aspx?cm########################################################################################
UDP:
- DNS ASK www.my###ewebs.com
- DNS ASK st##.#ectime.com
- DNS ASK to####.dianxin.cn
Miscellaneous:
Searches for the following windows:
- ClassName: 'RegEdit_RegEdit' WindowName: ''
- ClassName: '' WindowName: 'Program Manager'
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'IEFrame' WindowName: ''
- ClassName: 'MS_AutodialMonitor' WindowName: ''
