Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nkgiim' = '%HOMEPATH%\nkgiim.exe /s'
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>:\zzBg.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\nkgiim.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\nkgiimx.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%\nkgiim.exe'
Executes the following:
- '<SYSTEM32>\wbem\wmiadap.exe' /R /T
Modifies file system :
Creates the following files:
- %HOMEPATH%\nkgiim.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\nkgiim.exe
- <Drive name for removable media>:\nkgiimx.exe
- <Drive name for removable media>:\zzBg.ico
- %HOMEPATH%\nkgiim.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- <SYSTEM32>\PerfStringBackup.TMP
- <SYSTEM32>\wbem\Performance\WmiApRpl.ini
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
