Win32.HLLW.Autoruner2.5531
Added to the Dr.Web virus database:
2014-02-05
Virus description added:
2014-02-07
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ae4317b15fd69597003551948411bebd' = '"%ALLUSERSPROFILE%\system.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ae4317b15fd69597003551948411bebd' = '"%ALLUSERSPROFILE%\system.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\ae4317b15fd69597003551948411bebd.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%ALLUSERSPROFILE%\system.exe' = '%ALLUSERSPROFILE%\system.exe:*:Enabled:system.exe'
Creates and executes the following:
- '%ALLUSERSPROFILE%\system.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%ALLUSERSPROFILE%\system.exe" "system.exe" ENABLE
Modifies file system :
Creates the following files:
- %ALLUSERSPROFILE%\system.exe
Network activity:
Connects to:
- 'ob#####laa.no-ip.biz':5552
UDP:
- DNS ASK ob#####laa.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
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