Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'GB_Defense' = 'C:\GB_Defense.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
blocks the following features:
- User Account Control (UAC)
Network activity:
Connects to:
- 'localhost':3306
- 'www.no#####eb2012.com.br':80
TCP:
HTTP GET requests:
- www.no#####eb2012.com.br/links/adm_clt.inf
UDP:
- DNS ASK www.no#####eb2012.com.br
Miscellaneous:
Searches for the following windows:
- ClassName: 'IEFrame' WindowName: '(null)'
- ClassName: 'Frame Tab' WindowName: '(null)'
- ClassName: 'MozillaWindowClass' WindowName: '(null)'
- ClassName: 'Internet Explorer_Server' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'TabWindowClass' WindowName: '(null)'
- ClassName: 'Shell DocObject View' WindowName: '(null)'
