Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'winlogon' = 'C:\Config\system.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'winlogon' = 'C:\Config\system.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- 'C:\Config\sys.exe'
- 'C:\Config\system.exe'
- '%TEMP%\RarSFX0\first.exe'
Modifies file system :
Creates the following files:
- C:\Config\system.exe
- %TEMP%\RarSFX0\system.exe
- C:\Config\child\autorun.inf
- C:\Config\sys.exe
- %TEMP%\RarSFX0\child\autorun.inf
- %TEMP%\RarSFX0\drivelist.txt
- %TEMP%\RarSFX0\sys.exe
- %TEMP%\RarSFX0\first.exe
Sets the 'hidden' attribute to the following files:
- C:\Config\sys.exe
- C:\Config\system.exe
- %TEMP%\RarSFX0\child\autorun.inf
- C:\Config\child\autorun.inf
Deletes the following files:
- %TEMP%\RarSFX0\system.exe
- %TEMP%\RarSFX0\child\autorun.inf
- %TEMP%\RarSFX0\sys.exe
- %TEMP%\RarSFX0\drivelist.txt
- %TEMP%\RarSFX0\first.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'AutoHotkey' WindowName: 'C:\Config\sys.exe'
- ClassName: '#32771' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'AutoHotkey' WindowName: 'C:\Config\system.exe'
- ClassName: 'EDIT' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'AutoHotkey' WindowName: '%TEMP%\RarSFX0\first.exe'