Win32.HLLW.Autoruner2.16959
Added to the Dr.Web virus database:
2014-08-11
Virus description added:
2014-08-19
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '74364d927f3821c141ad51dde5a7b6d6' = '"%TEMP%\hcmd.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '74364d927f3821c141ad51dde5a7b6d6' = '"%TEMP%\hcmd.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\74364d927f3821c141ad51dde5a7b6d6.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\hcmd.exe' = '%TEMP%\hcmd.exe:*:Enabled:hcmd.exe'
Creates and executes the following:
- '%TEMP%\hcmd.exe'
- '<Current directory>\FileProtectedCSharp.scr' /S
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\hcmd.exe" "hcmd.exe" ENABLE
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen <Current directory>\10593167_300156593505297_6699802859575888116_n.jpg
Modifies file system :
Creates the following files:
- %HOMEPATH%\Recent\bf32d3b0.lnk
- %TEMP%\hcmd.exe
- %HOMEPATH%\Recent\10593167_300156593505297_6699802859575888116_n.lnk
- <Current directory>\10593167_300156593505297_6699802859575888116_n.jpg
- <Current directory>\FileProtectedCSharp.scr
Network activity:
Connects to:
UDP:
- DNS ASK ho####yn9.ddns.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'EDIT' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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