Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /h'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'puamio' = '%HOMEPATH%\puamio.exe /w'
Creates the following files on removable media:
- <Drive name for removable media>:\Passwords.exe
- <Drive name for removable media>:\RCX3.tmp
- <Drive name for removable media>:\RCX2.tmp
- <Drive name for removable media>:\RCX6.tmp
- <Drive name for removable media>:\RCX5.tmp
- <Drive name for removable media>:\RCX4.tmp
- <Drive name for removable media>:\Secret.exe
- <Drive name for removable media>:\puamio.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Porn.exe
- <Drive name for removable media>:\RCX1.tmp
- <Drive name for removable media>:\Sexy.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%\puamio.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\puamio.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\puamio.exe
- <Drive name for removable media>:\autorun.inf
- %HOMEPATH%\puamio.exe
Deletes the following files:
- <Drive name for removable media>:\Passwords.exe
- <Drive name for removable media>:\Porn.exe
- <Drive name for removable media>:\Sexy.exe
Network activity:
Connects to:
- '25#.#55.255.255':8003
- 'ns#.###pupdates.info':8003
- 'ns#.##lpupdates.org':8003
- 'ns#.##lpupdates.biz':8003
- 'ns#.##lpupdates.com':8003
- 'ns#.##lpupdates.net':8003
UDP:
- DNS ASK ns#.##lpupdates.org
- DNS ASK ns#.###pupdates.info
- DNS ASK ns#.##lpupdates.net
- DNS ASK ns#.##lpupdates.biz
- DNS ASK ns#.##lpupdates.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
