Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'as' = 'wscript.exe //B "%TEMP%\as.vbs"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'as' = 'wscript.exe //B "%TEMP%\as.vbs"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'wextract_cleanup0' = 'rundll32.exe <SYSTEM32>\advpack.dll,DelNodeRunDLL32 "%TEMP%\IXP000.TMP\"'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\as.vbs
Creates the following files on removable media:
- <Drive name for removable media>:\as.vbs
Malicious functions:
Creates and executes the following:
- '%TEMP%\IXP000.TMP\k.exe'
Executes the following:
- '<SYSTEM32>\wscript.exe' //B "%TEMP%\as.vbs"
- '<SYSTEM32>\wscript.exe' as.vbs
Modifies file system :
Creates the following files:
- %TEMP%\as.vbs
- <SYSTEM32>\bassmod.dll
- %TEMP%\IXP000.TMP\as.vbs
- %TEMP%\IXP000.TMP\k.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\as.vbs
Network activity:
Connects to:
- '5.###.234.62':3460
- 'localhost':1038
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
