Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /C'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /J'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuivi' = '%HOMEPATH%\tuivi.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>:\vFt.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\tuivi.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\tuivix.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%\tuivi.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\tuivi.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\tuivi.exe
- <Drive name for removable media>:\tuivix.exe
- <Drive name for removable media>:\vFt.ico
- %HOMEPATH%\tuivi.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
