Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{MB3JKSW-Y883-WE0K-IY6U-SL6N6I178}] 'StubPath' = '<SYSTEM32>\Large\server.exe Restart'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{MB3JKSW-Y883-WE0K-IY6U-SL6N6I178}] 'StubPath' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCM' = ''
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\Large\server.exe
Injects code into
the following system processes:
- <SYSTEM32>\spoolsv.exe
- <SYSTEM32>\svchost.exe
- <SYSTEM32>\lsass.exe
- <SYSTEM32>\cscript.exe
- <SYSTEM32>\alg.exe
- <SYSTEM32>\ctfmon.exe
- <SYSTEM32>\smss.exe
- System
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\services.exe
- <SYSTEM32>\winlogon.exe
- <SYSTEM32>\csrss.exe
a large number of user processes.
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\XXXX[1].dll
- %TEMP%\UuU.uUu
- %APPDATA%\SQLite3.dll
- %TEMP%\141234.tmp
- %TEMP%\XX--XX--XX.txt
- <SYSTEM32>\Large\server.exe
- %TEMP%\XxX.xXx
- %APPDATA%\logs.dat
Sets the 'hidden' attribute to the following files:
- %APPDATA%\logs.dat
- <SYSTEM32>\Large\server.exe
Deletes the following files:
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
- %TEMP%\XX--XX--XX.txt
Network activity:
Connects to:
- 'ky####00.no-ip.biz':82
- 'www.se##er.com':80
- 'localhost':1035
TCP:
HTTP GET requests:
- www.se##er.com/XXXX.dll
UDP:
- DNS ASK ky####00.no-ip.biz
- DNS ASK www.se##er.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''