Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'lsass' = '%WINDIR%\lsass.exe'
Malicious functions:
Creates and executes the following:
- %WINDIR%\lsass.exe
Modifies file system :
Creates the following files:
- %WINDIR%\lsass.exe
- <SYSTEM32>\iertutil.dll
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\toplistt[1].php
- %TEMP%\$inst\temp_0.tmp
- %TEMP%\$inst\2.tmp
- %TEMP%\$inst\4.tmp
- %TEMP%\$inst\5.tmp
Deletes the following files:
- %TEMP%\$inst\4.tmp
- %TEMP%\$inst\5.tmp
- %TEMP%\$inst\temp_0.tmp
- %TEMP%\$inst\2.tmp
Network activity:
Connects to:
- 'www.ce##eri.net':80
- 'localhost':1035
TCP:
HTTP GET requests:
- www.ce##eri.net/toplistt.php
UDP:
- DNS ASK www.ce##eri.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
