Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe] 'Debugger' = 'yoqpgpm.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '327203a7' = '"C:\ProgramData\6b407430\w91auqe3a53o.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] '327203a7' = 'C:\ProgramData\6b407430\w91auqe3a53o.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\services\SSDPSRV] 'Start' = '00000002'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
Executes the following:
- '%WINDIR%\explorer.exe'
Injects code into
the following system processes:
- <SYSTEM32>\cscript.exe
- <Auxiliary element>
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\cmd.exe
the following user processes:
- oncbcli.exe
- cbmain.exe
Searches for windows to
detect analytical utilities:
- ClassName: 'PROCMON_WINDOW_CLASS' WindowName: ''
- ClassName: 'TIdaWindow' WindowName: ''
- ClassName: '' WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'OLLYDBG' WindowName: ''
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2500' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '2500' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '2500' = '00000003'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '2500' = '00000003'
Modifies file system :
Moves itself:
- from <Full path to virus> to C:\ProgramData\6b407430\w91auqe3a53o.exe
Network activity:
UDP:
- DNS ASK microsoft.com
- DNS ASK up####.microsoft.com
- DNS ASK windowsupdate.microsoft.com
- DNS ASK google.com
- DNS ASK dn#.##ftncsi.com
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'GMER'
- ClassName: '' WindowName: 'Monitoring - API Monitor v2 32-bit'
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
