Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /J'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /D'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /G'
- [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\499121920] 'Name' = '"%TEMP%\3.tmp"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'houopet' = '%HOMEPATH%\houopet.exe /y'
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>:\cptS.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\houopet.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\houopetx.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%\zupnat.exe
- %HOMEPATH%\houopet.exe
- %HOMEPATH%\z57NKbOO86bDWSl3O4.exe
- %HOMEPATH%\za.exe
Executes the following:
- <SYSTEM32>\tasklist.exe
Injects code into
the following system processes:
- <SYSTEM32>\spoolsv.exe
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
Modifies file system :
Creates the following files:
- %TEMP%\2.tmp
- %HOMEPATH%\houopet.exe
- %WINDIR%\Temp\4.tmp
- %HOMEPATH%\z57NKbOO86bDWSl3O4.exe
- %HOMEPATH%\za.exe
- %HOMEPATH%\zupnat.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\houopet.exe
- <Drive name for removable media>:\houopetx.exe
- <Drive name for removable media>:\cptS.ico
- %HOMEPATH%\houopet.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %WINDIR%\Temp\4.tmp
- %HOMEPATH%\z57NKbOO86bDWSl3O4.exe
- %TEMP%\3.tmp
- <DRIVERS>\etc\hosts
Network activity:
Connects to:
- 'ap#.#ostip.info':80
- '74.##5.232.51':80
TCP:
HTTP GET requests:
- ap#.#ostip.info/country.php
- 74.##5.232.51/
UDP:
- DNS ASK ap#.#ostip.info
- DNS ASK google.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'MS_AutodialMonitor' WindowName: ''
