Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '043ed596af7365236306a463494dc0f4' = '"%TEMP%\update.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '043ed596af7365236306a463494dc0f4' = '"%TEMP%\update.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\043ed596af7365236306a463494dc0f4.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\update.exe' = '%TEMP%\update.exe:*:Enabled:update.exe'
Creates and executes the following:
- '%TEMP%\update.exe'
- '<LS_APPDATA>cYwJUoTwws.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\update.exe" "update.exe" ENABLE
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen <LS_APPDATA>FuAZGAsOSD..jpg
Modifies file system :
Creates the following files:
- %HOMEPATH%\Recent\Application DataFuAZGAsOSD..lnk
- %HOMEPATH%\Recent\Local Settings.lnk
- %TEMP%\update.exe
- <LS_APPDATA>cYwJUoTwws.exe
- <LS_APPDATA>FuAZGAsOSD..jpg
Network activity:
Connects to:
- 'pe####4.no-ip.org':1177
UDP:
- DNS ASK pe####4.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
