Technical Information
To ensure autorun and distribution:
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\Windows_cctv_51] 'Start' = '00000002'
Malicious functions:
Creates and executes the following:
- %CommonProgramFiles%\Microsoft Shared\MSInfo\rejoice51.exe
Executes the following:
- <SYSTEM32>\cmd.exe /c "%CommonProgramFiles%\Microsoft Shared\MSINFO\Delet.bat"
- <SYSTEM32>\calc.exe
Injects code into
the following system processes:
- <SYSTEM32>\calc.exe
Modifies file system :
Creates the following files:
- %CommonProgramFiles%\Microsoft Shared\MSInfo\Delet.bat
- <SYSTEM32>\_rejoice51.exe
- %CommonProgramFiles%\Microsoft Shared\MSInfo\rejoice51.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\_rejoice51.exe
- %CommonProgramFiles%\Microsoft Shared\MSInfo\rejoice51.exe
Deletes itself.
Network activity:
Connects to:
- 'tk###.3322.org':8181
UDP:
- DNS ASK tk###.3322.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'TBuild0523' WindowName: ''
- ClassName: 'MS_WINHELP' WindowName: ''
