Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'wdowsxp' = '%PROGRAM_FILES%\lass.exe /start'
Creates the following files on removable media:
- <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:
- hidden files
Executes the following:
- %WINDIR%\explorer.exe \
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- %PROGRAM_FILES%\autorun.inf
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\mm[1].html
- <Current directory>\autorun.inf
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- %PROGRAM_FILES%\autorun.inf
Network activity:
Connects to:
- 'www.go####rlvsboy.com':80
- 'localhost':1035
TCP:
HTTP GET requests:
- www.go####rlvsboy.com/mm.html
UDP:
- DNS ASK www.go####rlvsboy.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: '' WindowName: ''
