Win32.HLLW.Autoruner1.64197
Added to the Dr.Web virus database:
2013-12-22
Virus description added:
2013-12-23
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '96f55f77708a7e7e6059ea7206931b90' = '"%TEMP%\systrm32.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '96f55f77708a7e7e6059ea7206931b90' = '"%TEMP%\systrm32.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '' = '<LS_APPDATA>\rata.exe'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\96f55f77708a7e7e6059ea7206931b90.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\systrm32.exe' = '%TEMP%\systrm32.exe:*:Enabled:systrm32.exe'
Creates and executes the following:
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\systrm32.exe" "systrm32.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\systrm32.exe
- <LS_APPDATA>\rata.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
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