Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'wextract_cleanup0' = 'rundll32.exe <SYSTEM32>\advpack.dll,DelNodeRunDLL32 "%TEMP%\IXP000.TMP\"'
Malicious functions:
Creates and executes the following:
- '%TEMP%\IXP000.TMP\CONTEN~1.EXE'
- '%WINDIR%\stfMeane2437.exe' 61A847B5BBF7281036983F466188719AB689201522886B092CBD44BD8689220221DD3257
- '%TEMP%\IXP000.TMP\WR-1-2~1.EXE'
- '%WINDIR%\stfMeane2437.exe' (downloaded from the Internet)
Executes the following:
- '<SYSTEM32>\cmd.exe' /c ""%TEMP%\cq.bat" "
Modifies file system :
Creates the following files:
- %TEMP%\cq.bat
- %WINDIR%\stfMeane2437.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\meane[1].stf
Deletes the following files:
- %TEMP%\IXP000.TMP\WR-1-2~1.EXE
Network activity:
Connects to:
- 'ks#.####7.wrs.flutix.com':80
TCP:
HTTP GET requests:
- ks#.####7.wrs.flutix.com/meane.stf
UDP:
- DNS ASK ks#.####7.wrs.flutix.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
- ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
