Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgserv9.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgserv.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgctrl.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avkserv.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avkpop.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgw.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgcc32.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\autotrace.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\autodown.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\aupdate.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ave32.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avconsol.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\autoupdate.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avpinst.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avpexec.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avpdos32.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avpnt.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avpmon.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avpm.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avpcc.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avkwctl9.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avkwcl9.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avkservice.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp32.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avnt.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\atwatch.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\agentw.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\agentsvr.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\advxdwin.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\alertsvc.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\alerter.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ahnsd.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ackwin32.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\_avp32.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\_avp.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\_findviru.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\_avpm.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\_avpcc.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\atcon.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\apvxdwin.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\aplica32.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\atupdater.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\atro55en.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\atguard.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\apimonitor.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\amon9x.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\amon.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\alogserv.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ants.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\antivirus.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\anti-trojan.exe] 'Debugger' = '"%HOMEPATH%\6514D49585E42555\winlogon.exe"'
Creates or modifies the following files:
- %ALLUSERSPROFILE%\Start Menu\Programs\Startup\Windows Update.exe
- %HOMEPATH%\Start Menu\Programs\Startup\Windows Anytime Upgrade.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\6514D49585E42555\winlogon.exe' = '%HOMEPATH%\6514D49585E42555\winlogon.exe:*:Enabled:@xpsp2res.dll,-53342401'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\6514D49585E42555\winlogon.exe' = '%HOMEPATH%\6514D49585E42555\winlogon.exe:*:Enabled:@xpsp2res.dll,-70554750'
- [<HKLM>\SYSTEM\ControlSet003\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\6514D49585E42555\winlogon.exe' = '%HOMEPATH%\6514D49585E42555\winlogon.exe:*:Enabled:@xpsp2res.dll,-28956246'
- [<HKLM>\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%HOMEPATH%\6514D49585E42555\winlogon.exe' = '%HOMEPATH%\6514D49585E42555\winlogon.exe:*:Enabled:@xpsp2res.dll,-57951861'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Creates and executes the following:
- %HOMEPATH%\6514D49585E42555\winlogon.exe
Executes the following:
- <SYSTEM32>\svchost.exe
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\ctfmon.exe
the following user processes:
- mpftray.exe
- NAVAPW32.EXE
- MCAGENT.EXE
- fsav32.exe
- GUARD.EXE
- nod32.exe
- zapro.exe
- ZONEALARM.EXE
- smc.exe
- opera.exe
- outpost.exe
- fsav.exe
- AVP.EXE
- AVP32.EXE
- AVP.COM
- AVGCC32.EXE
- AVGCTRL.EXE
- AVPCC.EXE
- ecmd.exe
- ekrn.exe
- ccapp.exe
- AVPM.EXE
- AVSYNMGR.EXE
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Internet Explorer\Download] 'RunInvalidSignatures' = '00000001'
- [<HKCU>\Software\Microsoft\Internet Explorer\Download] 'CheckExeSignatures' = 'no'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Associations] 'LowRiskFileTypes' = '.exe'
Modifies file system :
Creates the following files:
- %ALLUSERSPROFILE%\Start Menu\Windows DVD Maker.exe
- %ALLUSERSPROFILE%\Start Menu\Programs\Windows Media Center.exe
- %HOMEPATH%\Start Menu\Programs\Internet Explorer.exe
- %HOMEPATH%\6514D49585E42555\winlogon.exe
- %HOMEPATH%\Start Menu\Fax y Escaner de Windows.exe
Deletes the following files:
- <DRIVERS>\etc\hosts
Substitutes the HOSTS file.
Network activity:
Connects to:
- 'wh##.amung.us':80
TCP:
HTTP GET requests:
- wh##.amung.us/swidget/26n2qf7pnk0x
UDP:
- DNS ASK 68##########ke2r905x9vcl03c4sn.ipcheker.com
- DNS ASK ew##########t179j6k2cue8rh34fr.ipgreat.com
- DNS ASK g5##########y4rvtu55ohej3f007s.ipgreat.com
- DNS ASK wh##.amung.us
- DNS ASK 31##########rt0975vyrf86s06so8.ipcheker.com