Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'nuoaso' = '%HOMEPATH%\nuoaso.exe /c'
Creates the following files on removable media
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\210252809.exe
- <Drive name for removable media>:\13.exe
- <Drive name for removable media>:\pushkin.exe
- <Drive name for removable media>:\february_catalogue__2015.exe
- <Drive name for removable media>:\cveuropeo.exe
- <Drive name for removable media>:\weeklysheet1215.exe
- <Drive name for removable media>:\fi51.exe
- <Drive name for removable media>:\dashborder_192.exe
- <Drive name for removable media>:\dial.exe
- <Drive name for removable media>:\default.exe
- <Drive name for removable media>:\dialmap.exe
- <Drive name for removable media>:\delete.exe
- <Drive name for removable media>:\archer.exe
- <Drive name for removable media>:\split.exe
- <Drive name for removable media>:\nuoaso.exe
- <Drive name for removable media>:\parnas_01.exe
- <Drive name for removable media>:\168.exe
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%\nuoaso.exe
Sets the 'hidden' attribute to the following files
- %HOMEPATH%\nuoaso.exe
- <Drive name for removable media>:\autorun.inf
Network activity
Connects to
- '255.255.255.255':8000
UDP
- DNS ASK ns#.##ayer1352.com
- DNS ASK ns#.##ayer1352.net
Miscellaneous
Creates and executes the following
- '%HOMEPATH%\nuoaso.exe'
