Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /S'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /Y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tched' = '%HOMEPATH%\tched.exe /C'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\tched.exe
- <Drive name for removable media>:\Secret.exe
- <Drive name for removable media>:\Sexy.exe
- <Drive name for removable media>:\RCX1.tmp
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Modifies file system:
Creates the following files:
- %HOMEPATH%\tched.exe
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\tched.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- <Drive name for removable media>:\Sexy.exe
Substitutes the following files:
- <Drive name for removable media>:\Sexy.exe
Network activity:
Connects to:
- 'ns#.##ayer1352.com':8000
UDP:
- DNS ASK ns#.##ayer1352.com
Miscellaneous:
Creates and executes the following:
- '%HOMEPATH%\tched.exe'
