Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'openhelp' = '<Current directory>\openhelp.exe'
Malicious functions:
Creates and executes the following:
- '<Current directory>\openhelp.exe'
Executes the following:
- '<SYSTEM32>\cmd.exe' /c <Current directory>\unst.bat
Modifies file system :
Creates the following files:
- <Current directory>\unst.bat
- <Current directory>\openhelp.exe
- <SYSTEM32>\openhelp.dll
Deletes itself.
Network activity:
Connects to:
- 'go###ol.co.kr':80
TCP:
HTTP GET requests:
- go###ol.co.kr/plugins/addons/ancb/index.php?a=###
UDP:
- DNS ASK go###ol.co.kr
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
