Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /J'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /L'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /h'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'hryox' = '%HOMEPATH%\hryox.exe /T'
Creates the following files on removable media:
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\hryox.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\hryoxx.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%\bpdat.exe'
- '%HOMEPATH%\cpdat.exe'
- '%HOMEPATH%\apdat.exe'
- '%HOMEPATH%\hryox.exe'
Executes the following:
- '<SYSTEM32>\cmd.exe' /c ""%HOMEPATH%\a.bat" "
- '<SYSTEM32>\cmd.exe' /c ""%TEMP%\7ZSfx000.cmd" "
- '<SYSTEM32>\tasklist.exe'
- '<SYSTEM32>\svchost.exe'
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
the following user processes:
- firefox.exe
- iexplore.exe
- safari.exe
- msnmsgr.exe
- ICQ.exe
- YahooMessenger.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\a.bat
- %TEMP%\Aqz..bat
- %TEMP%\7ZSfx000.cmd
- %HOMEPATH%\hryox.exe
- %HOMEPATH%\apdat.exe
- %HOMEPATH%\bpdat.exe
- %HOMEPATH%\cpdat.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\hryox.exe
- <Drive name for removable media>:\hryoxx.exe
- %HOMEPATH%\hryox.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %HOMEPATH%\cpdat.exe
- %TEMP%\7ZSfx000.cmd
- %HOMEPATH%\bpdat.exe
- %HOMEPATH%\apdat.exe
Deletes itself.
Network activity:
Connects to:
- 'qu###umeat.net':80
UDP:
- DNS ASK qu###umeat.net
- DNS ASK ab##t.com
- DNS ASK 4s##red.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'SkinuxWindow' WindowName: 'MySpaceIM with Skype'
