Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'BatteryHelper' = '<Full path to file>'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\JavaUpdater.exe
Malicious functions:
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\ykyqxhyh.cmdline"
Modifies file system:
Creates the following files:
- %TEMP%\vbc1.tmp
- %TEMP%\RES2.tmp
- %TEMP%\ykyqxhyh.out
- %TEMP%\ykyqxhyh.0.vb
- %TEMP%\ykyqxhyh.cmdline
Sets the 'hidden' attribute to the following files:
- <Full path to file>
Deletes the following files:
- %TEMP%\ykyqxhyh.out
- %TEMP%\ykyqxhyh.0.vb
- %TEMP%\ykyqxhyh.cmdline
- %TEMP%\RES2.tmp
- %TEMP%\vbc1.tmp
Network activity:
Connects to:
- 'ch####nicy.ddns.net':1604
UDP:
- DNS ASK ch####nicy.ddns.net
