Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Internet' = '<SYSTEM32>\winUpdate.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Internet' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = '<SYSTEM32>\Defender.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Messenger' = '%WINDIR%\lsass.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Autotranf.exe
- <Drive name for removable media>:\Autorun.inf
Malicious functions:
Creates and executes the following:
- '%WINDIR%\lsass.exe'
- '<SYSTEM32>\Defender.exe'
Modifies file system :
Creates the following files:
- <SYSTEM32>\winUpdate.exe
- C:\archivo.exe
- %WINDIR%\lsass.exe
- <SYSTEM32>\Defender.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Autotranf.exe
- %WINDIR%\lsass.exe
- <SYSTEM32>\Defender.exe
Network activity:
Connects to:
- 'ir####t.terra.cl':7000
UDP:
- DNS ASK ir####t.terra.cl
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: '' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
