Win32.HLLW.Autoruner2.16004
Added to the Dr.Web virus database:
2014-07-03
Virus description added:
2014-07-03
Technical Information
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Trojan.exe' = '%TEMP%\Trojan.exe:*:Enabled:Trojan.exe'
Creates and executes the following:
- '%TEMP%\Trojan.exe'
- '%WINDIR%\Server.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Trojan.exe" "Trojan.exe" ENABLE
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen %WINDIR%\my.JPG
Modifies file system :
Creates the following files:
- %TEMP%\Trojan.exe
- %HOMEPATH%\Recent\my.lnk
- %HOMEPATH%\Recent\WINDOWS.lnk
- %WINDIR%\Server.exe
- %TEMP%\aut1.tmp
- %WINDIR%\my.JPG
- %TEMP%\aut2.tmp
Deletes the following files:
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
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