Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'Bkr' = '"%HOMEPATH%\Microsoft\bkr.bat"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Updates' = '"%HOMEPATH%\Securities\scan.vbe"'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\System File [Not Delete].vbe
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Nouveau dossier.lnk
- <Drive name for removable media>:\LINDA.vbe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
blocks the following features:
- User Account Control (UAC)
Executes the following:
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%TEMP%\a.vbe" "%HOMEPATH%\Securities\"
- <SYSTEM32>\attrib.exe +s +h "%HOMEPATH%\Securities\scan.vbe"
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Microsoft\LINDA.vbe" "%PROGRAM_FILES%\eMule\Incoming\"
- <SYSTEM32>\attrib.exe +s +h "%HOMEPATH%\Microsoft"
- <SYSTEM32>\attrib.exe +s +h "%HOMEPATH%\Securities"
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%TEMP%\a.vbe" "%HOMEPATH%\Microsoft\"
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Microsoft\LINDA.vbe" "%PROGRAM_FILES%\limewire\"
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%TEMP%\LINDA.vbe" "%TEMP%\"
- <SYSTEM32>\attrib.exe -s -h "%TEMP%\LINDA.vbe"
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Microsoft\LINDA.vbe" "E:\"
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Microsoft\LINDA.vbe" "<LS_APPDATA>\Ares\My Shared Folder\"
- <SYSTEM32>\wscript.exe "%TEMP%\tmp.vbe"
- <SYSTEM32>\wscript.exe "%HOMEPATH%\Microsoft\LINDA.vbe"
- <SYSTEM32>\find.exe /i "version 6.0."
- <SYSTEM32>\cmd.exe /c ""%TEMP%\tmp.bat" "
- <SYSTEM32>\reg.exe add "HKCU\software\Microsoft\Windows\CurrentVersion\RunOnce" /v "Bkr" /t "REG_SZ" /d """"%HOMEPATH%\Microsoft\bkr.bat"""" /f
- <SYSTEM32>\wscript.exe "%TEMP%\a.vbe"
- <SYSTEM32>\cmd.exe /c ""%TEMP%\uac.bat" "
- <SYSTEM32>\find.exe /i "version 6.1."
- <SYSTEM32>\reg.exe add "HKLM\software\Microsoft\Windows\CurrentVersion\Policies\System" /v "EnableLUA" /t "REG_DWORD" /d 0 /f
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Start Menu\Programs\Startup\*.vbe" "%TEMP%\"
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%TEMP%\a.vbe" "%TEMP%\"
- <SYSTEM32>\attrib.exe -s -h "%TEMP%\a.vbe"
- <SYSTEM32>\reg.exe add "HKLM\software\microsoft\windows\currentversion\policies\system" /v "consentpromptbehavioradmin" /t "REG_DWORD" /d 0 /f
- <SYSTEM32>\reg.exe add "HKCR\VBEFile\DefaultIcon" /v "" /t "REG_SZ" /d "shimgvw.dll,3" /f
- <SYSTEM32>\xcopy.exe /C /H /Y /R "%HOMEPATH%\Securities\*.vbe" "%TEMP%\"
Modifies file system :
Creates the following files:
- %HOMEPATH%\Microsoft\rtk.rtk
- %TEMP%\tmp.vbe
- <LS_APPDATA>\Ares\My Shared Folder\LINDA.vbe
- %HOMEPATH%\Microsoft\bkr.bat
- %TEMP%\System File [Not Delete].vbe
- %TEMP%\scan.vbe
- %PROGRAM_FILES%\limewire\LINDA.vbe
- %TEMP%\tmp.bat
- %TEMP%\uac.bat
- %TEMP%\a.vbe
- %PROGRAM_FILES%\eMule\Incoming\LINDA.vbe
- %HOMEPATH%\Securities\a.vbe
- %HOMEPATH%\Microsoft\a.vbe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\usbdriver.vbe
- <Drive name for removable media>:\autorun.inf
- %HOMEPATH%\Securities\scan.vbe
Deletes the following files:
- %TEMP%\System File [Not Delete].vbe
- %TEMP%\scan.vbe
- %HOMEPATH%\Microsoft\rtk.rtk
- %HOMEPATH%\Start Menu\Programs\Startup\System File [Not Delete].vbe
- %TEMP%\a.vbe
- %TEMP%\uac.bat
- %TEMP%\tmp.vbe
- %TEMP%\tmp.bat
Moves the following files:
- from %HOMEPATH%\Securities\a.vbe to %HOMEPATH%\Securities\scan.vbe
- from %HOMEPATH%\Microsoft\a.vbe to %HOMEPATH%\Microsoft\LINDA.vbe
