Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Explre' = '<SYSTEM32>\lshas.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\AUTORUN.INF
- <Drive name for removable media>:\trn_n.exe
Malicious functions:
Creates and executes the following:
- '<SYSTEM32>\lshas.exe'
Modifies file system :
Creates the following files:
- <SYSTEM32>\lshas.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\AUTORUN.INF
- <Drive name for removable media>:\trn_n.exe
- <SYSTEM32>\lshas.exe
Network activity:
Connects to:
- 'yu####z.dyndns.org':110
- 'yu####z.dyndns.org':111
UDP:
- DNS ASK yu####z.dyndns.org