Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'logogo' = '%WINDIR%\system\logogo.exe'
Malicious functions:
Creates and executes the following:
- '%WINDIR%\system\logogo.exe' /update
- '%WINDIR%\system\logogo.exe' /sleepDown
Executes the following:
- '%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE' http://we#.#5623.com/90/tj.htm
Injects code into
the following system processes:
- <SYSTEM32>\ctfmon.exe
- <SYSTEM32>\spoolsv.exe
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\cscript.exe
- <SYSTEM32>\cmd.exe
- <SYSTEM32>\alg.exe
- <SYSTEM32>\svchost.exe
- <SYSTEM32>\csrss.exe
- <SYSTEM32>\smss.exe
- System
- <SYSTEM32>\lsass.exe
- <SYSTEM32>\services.exe
- <SYSTEM32>\winlogon.exe
a large number of user processes.
Modifies file system :
Creates the following files:
- %WINDIR%\system\SYSTEM32.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\anc[1].jpg
- %WINDIR%\system\SYSTEM32.vxd
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\anc[1].jpg
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\tj[1].htm
- C:\autorun.inf
- %WINDIR%\system\logogo.exe
- %WINDIR%\system\inudhya.dll
- C:\setup.exe
Sets the 'hidden' attribute to the following files:
- C:\setup.exe
- C:\autorun.inf
- %WINDIR%\system\logogo.exe
Deletes the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\anc[1].jpg
- %WINDIR%\system\SYSTEM32.vxd
- %WINDIR%\system\SYSTEM32.tmp
- C:\autorun.inf
Deletes itself.
Network activity:
Connects to:
- 'we#.#5623.com':80
- 'localhost':1038
- 'an#.#onis6.net':80
TCP:
HTTP GET requests:
- we#.#5623.com/90/tj.htm
- an#.#onis6.net/anc.jpg
UDP:
- DNS ASK we#.#5623.com
- DNS ASK an#.#onis6.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
- ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
- ClassName: '' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
