Win32.HLLW.Autoruner2.8208
Added to the Dr.Web virus database:
2014-02-21
Virus description added:
2014-02-22
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'f0835550932ecc0aae111c3276450878' = '"%TEMP%\wtf.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'f0835550932ecc0aae111c3276450878' = '"%TEMP%\wtf.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\f0835550932ecc0aae111c3276450878.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\wtf.exe' = '%TEMP%\wtf.exe:*:Enabled:wtf.exe'
Creates and executes the following:
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\wtf.exe" "wtf.exe" ENABLE
Modifies file system :
Creates the following files:
Network activity:
Connects to:
- 'ya####96.zapto.org':1177
UDP:
- DNS ASK ya####96.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
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