Win32.HLLW.Autoruner2.13809
Added to the Dr.Web virus database:
2014-05-04
Virus description added:
2014-05-05
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '4d8c06e830843003f2fa60674da479ed' = '"%TEMP%\systm.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '4d8c06e830843003f2fa60674da479ed' = '"%TEMP%\systm.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\systm.exe' = '%TEMP%\systm.exe:*:Enabled:systm.exe'
Creates and executes the following:
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\systm.exe" "systm.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\3638D.dmp
- %TEMP%\dw.log
- %TEMP%\systm.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
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