Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\shell\open\command] '' = '"<LS_APPDATA>\blb.exe" -a "%ProgramFiles%\Internet Explorer\iexplore.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '1285404974' = '<LS_APPDATA>\blb.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ctfmon.exe' = '<SYSTEM32>\ctfmon.exe'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'EnableFirewall' = '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] 'EnableFirewall' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Update
blocks the following features:
- Windows Security Center
Executes the following:
- '<LS_APPDATA>\blb.exe' -gav <Full path to file>
Terminates or attempts to terminate
the following user processes:
- safari.exe
- opera.exe
- chrome.exe
- iexplore.exe
- firefox.exe
Modifies file system:
Creates the following files:
- %TEMP%\v72vcx1173po85c400b8775170h321
- %HOMEPATH%\Templates\v72vcx1173po85c400b8775170h321
- %ALLUSERSPROFILE%\Application Data\v72vcx1173po85c400b8775170h321
- <LS_APPDATA>\blb.exe
- <LS_APPDATA>\v72vcx1173po85c400b8775170h321
Deletes itself.
Network activity:
Connects to:
- 'na####hohuly.com':80
- 'fi####gymeba.com':80
- 'cy####jyvidiwi.com':80
- 'pi####caciqil.com':80
- 'xo###ipowu.com':80
- 'he###ixiru.com':80
- 'po###ybaru.com':80
- 'ly####wotucoh.com':80
- 'mu###ahyxar.com':80
- 'ti###uqel.com':80
- 'ne###ezyjih.com':80
- 'ny####wafyfa.com':80
- 'ku###idewar.com':80
- 'ci####rijugeg.com':80
UDP:
- DNS ASK wa###opani.com
- DNS ASK qo###ifelaw.com
- DNS ASK da###ufigaj.com
- DNS ASK wy###ediwo.com
- DNS ASK gi###eceta.com
- DNS ASK di###akiri.com
- DNS ASK gi####powaqa.com
- DNS ASK tu####kenuqi.com
- DNS ASK zy####wodojyx.com
- DNS ASK ba####qaguhit.com
- DNS ASK microsoft.com
- DNS ASK xe###ozul.com
- DNS ASK ma####cybefosu.com
- DNS ASK ve###utuk.com
- DNS ASK hi###umala.com
- DNS ASK gi####fopupygy.com
- DNS ASK ra####bareme.com
- DNS ASK pu####cyvazym.com
- DNS ASK ku###idewar.com
- DNS ASK ci####rijugeg.com
- DNS ASK cy####jyvidiwi.com
- DNS ASK ny####wafyfa.com
- DNS ASK mu###ahyxar.com
- DNS ASK ti###uqel.com
- DNS ASK ne###ezyjih.com
- DNS ASK ly####wotucoh.com
- DNS ASK fi####gymeba.com
- DNS ASK ro####zanasi.com
- DNS ASK xo###ipowu.com
- DNS ASK do####cufinulo.com
- DNS ASK fo####wupode.com
- DNS ASK pi####caciqil.com
- DNS ASK na####hohuly.com
- DNS ASK he###ixiru.com
- DNS ASK po###ybaru.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'msascui_class' WindowName: ''
