Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{YN8D7T46-W452-0ADM-5U1P-700G2K22586H}] 'StubPath' = ''
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{YN8D7T46-W452-0ADM-5U1P-700G2K22586H}] 'StubPath' = '<SYSTEM32>\Java Update\Java_Update.exe Restart'
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\Java Update\Java_Update.exe
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
- %APPDATA%\logs.dat
- <SYSTEM32>\Java Update\Java_Update.exe
- %TEMP%\XX--XX--XX.txt
Sets the 'hidden' attribute to the following files:
- %APPDATA%\logs.dat
- <SYSTEM32>\Java Update\Java_Update.exe
Deletes the following files:
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
- %TEMP%\XX--XX--XX.txt
Network activity:
Connects to:
- 'sa####sk.no-ip.org':81
UDP:
- DNS ASK sa####sk.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
