Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Urity-aF' = '%TEMP%\SeC-NaJ.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\52576309Folder.exe.lnk
- <Drive name for removable media>:\autorun.inf.lnk
- <Drive name for removable media>:\FirFox.exe.lnk
- <Drive name for removable media>:\63061809Folder.exe
- <Drive name for removable media>:\52576309Folder.exe
- <Drive name for removable media>:\FirFox.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
Creates and executes the following:
- '%TEMP%\SeC-NaJ.exe'
Modifies file system :
Creates the following files:
- %TEMP%\SeC-NaJ.exe
- %TEMP%\melt.txt
- C:\FirFox.exe
- C:\autorun.inf
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\FirFox.exe
- <Drive name for removable media>:\63061809Folder.exe
- <Drive name for removable media>:\52576309Folder.exe
- C:\autorun.inf
- C:\FirFox.exe
Deletes the following files:
- <Drive name for removable media>:\FirFox.exe.lnk
- <Drive name for removable media>:\autorun.inf.lnk
- <Drive name for removable media>:\52576309Folder.exe.lnk
Deletes itself.
Network activity:
Connects to:
- 'ay####.no-ip.biz':0
UDP:
- DNS ASK ay####.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_traywnd' WindowName: ''
