Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /S'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tieho' = '%HOMEPATH%\tieho.exe /H'
Creates the following files on removable media:
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\Ury.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\tieho.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\tiehox.exe
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:
- %HOMEPATH%\tieho.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\tieho.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\tieho.exe
- <Drive name for removable media>:\tiehox.exe
- <Drive name for removable media>:\Ury.ico
- %HOMEPATH%\tieho.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
- '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
