Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /Y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Sxikihuvuw' = 'rundll32.exe "%WINDIR%\mlapasv.dll",Startup'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /h'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /T'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ruigoi' = '%HOMEPATH%\ruigoi.exe /O'
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>:\bXAO.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\ruigoi.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\ruigoix.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%\ruigoi.exe
- %HOMEPATH%\l.exe
- %HOMEPATH%\kVLSw03DHe19.exe
Executes the following:
- <SYSTEM32>\rundll32.exe "%WINDIR%\mlapasv.dll",iep
- <SYSTEM32>\tasklist.exe
- <SYSTEM32>\rundll32.exe "%WINDIR%\mlapasv.dll",Startup
Modifies file system :
Creates the following files:
- %HOMEPATH%\ruigoi.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\CAY7EFAH.php
- %WINDIR%\anexaroyuy.dll
- %HOMEPATH%\kVLSw03DHe19.exe
- %HOMEPATH%\l.exe
- %WINDIR%\mlapasv.dll
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\ruigoi.exe
- <Drive name for removable media>:\ruigoix.exe
- <Drive name for removable media>:\bXAO.ico
- %HOMEPATH%\ruigoi.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %HOMEPATH%\kVLSw03DHe19.exe
Network activity:
Connects to:
- '11#####b0724.wikixo.net':80
- 'localhost':1035
UDP:
- DNS ASK 11#####b0724.wikixo.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
