Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'UserInit' = '<SYSTEM32>\userinit.exe,%APPDATA%\GoogleToolbar\GoogleUpdate.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'GoogleUpdater.exe' = '%APPDATA%\GoogleToolbar\GoogleUpdate.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\Diskrun.exe
Malicious functions:
Creates and executes the following:
- %APPDATA%\GoogleToolbar\GoogleUpdate.exe
Executes the following:
- %WINDIR%\NOTEPAD.EXE
- <SYSTEM32>\dumprep.exe 2852 -dm 7 7 "%TEMP%\WERc69f.dir00\explorer.exe.hdmp" 16325836412027092
- <SYSTEM32>\rundll32.exe <SYSTEM32>\sysdm.cpl,NoExecuteProcessException %WINDIR%\explorer.exe
- <SYSTEM32>\notepad.exe
- %WINDIR%\explorer.exe
- <SYSTEM32>\dumprep.exe 2852 -dm 7 7 "%TEMP%\WERc69f.dir00\explorer.exe.mdmp" 16325836412027072
Modifies file system :
Creates the following files:
- %TEMP%\WERc69f.dir00\explorer.exe.hdmp
- %TEMP%\WERc69f.dir00\appcompat.txt
- %TEMP%\WERc69f.dir00\manifest.txt
- %TEMP%\WERc69f.dir00\explorer.exe.mdmp
- C:\Diskrun.exe
- C:\Autorun.inf
- %APPDATA%\GoogleToolbar\GoogleUpdate.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Autorun.inf
- %APPDATA%\GoogleToolbar\GoogleUpdate.exe
- <Drive name for removable media>:\Diskrun.exe
- C:\Diskrun.exe
- C:\Autorun.inf
Network activity:
Connects to:
- 'ro####.zapto.org':1604
UDP:
- DNS ASK ro####.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'SysListView32' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: '#32770' WindowName: 'Data Execution Prevention - Microsoft Windows'
- ClassName: 'Indicator' WindowName: ''
- ClassName: '#32770' WindowName: 'Program Manager'
- ClassName: '#32770' WindowName: ''
