Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'c53a48cb9fc41b0ba9a5156573096a9c' = '"%WINDIR%\sam.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'c53a48cb9fc41b0ba9a5156573096a9c' = '"%WINDIR%\sam.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\sam.exe' = '%WINDIR%\sam.exe:*:Enabled:sam.exe'
Creates and executes the following:
- '%WINDIR%\sam.exe'
- '<LS_APPDATA>DtlWgoOlCW.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%WINDIR%\sam.exe" "sam.exe" ENABLE
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen <LS_APPDATA>LWBdgJfBmp.jpg
Modifies file system :
Creates the following files:
- %HOMEPATH%\Recent\Application DataLWBdgJfBmp.lnk
- %HOMEPATH%\Recent\Local Settings.lnk
- %WINDIR%\sam.exe
- <LS_APPDATA>DtlWgoOlCW.exe
- <LS_APPDATA>LWBdgJfBmp.jpg
Network activity:
Connects to:
- 'ha####233.noip.me':1177
UDP:
- DNS ASK ha####233.noip.me
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
