Win32.HLLW.Autoruner1.28778
Added to the Dr.Web virus database:
2012-10-26
Virus description added:
2012-10-26
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'RavMd' = '%WINDIR%\koowoo.exe'
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Run' = '%WINDIR%\koowoo.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\koowoo.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
- %WINDIR%\ad5588.exe
- %WINDIR%\koowoo.exe
- %WINDIR%\ad5588.exe (downloaded from the Internet)
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- %WINDIR%\ad5588.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\np.814e[1]
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\ad5588[1].exe
- %WINDIR%\koowoo.exe
- C:\koowoo
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- C:\koowoo
- %WINDIR%\koowoo.exe
- <Drive name for removable media>:\koowoo.exe
Network activity:
Connects to:
- 'localhost':1038
- 'np.#14e.com':80
- 'localhost':1035
- 'wo##zhe.com':80
TCP:
HTTP GET requests:
- np.#14e.com/?02#
- wo##zhe.com/ad5588.exe
UDP:
- DNS ASK np.#14e.com
- DNS ASK wo##zhe.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
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