Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '5cd8f17f4086744065eb0992a09e05a2' = '"%TEMP%\Trojan.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '5cd8f17f4086744065eb0992a09e05a2' = '"%TEMP%\Trojan.exe" ..'
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%\Koala.JPG
Modifies file system :
Creates the following files:
- %TEMP%\Trojan.exe
- %HOMEPATH%\Recent\Koala.lnk
- %HOMEPATH%\Recent\WINDOWS.lnk
- %WINDIR%\Server.exe
- %TEMP%\aut1.tmp
- %WINDIR%\Koala.JPG
- %TEMP%\aut2.tmp
Deletes the following files:
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
Network activity:
Connects to:
- 'am####l.mooo.com':7878
UDP:
- DNS ASK am####l.mooo.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
