Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\Client.exe
- %HOMEPATH%\Start Menu\Programs\Startup\Client.vbs
- %HOMEPATH%\Start Menu\Programs\Startup\Client.js
- %HOMEPATH%\Start Menu\Programs\Startup\Client.lnk
- %HOMEPATH%\Start Menu\Programs\Startup\Client.URL
Malicious functions:
Injects code into
the following system processes:
- %WINDIR%\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
Modifies file system:
Creates the following files:
- %TEMP%\aut1.tmp
- %TEMP%\tzslipb
- %TEMP%\aut2.tmp
- %TEMP%\EWMCYR.exe
- %TEMP%\blgZblRvZ.txt
- %TEMP%\llfvs55w.0.vb
- %TEMP%\llfvs55w.cmdline
- %TEMP%\llfvs55w.out
- %TEMP%\vbc3.tmp
- %TEMP%\vbc4.tmp
- %TEMP%\RES5.tmp
Deletes the following files:
- %TEMP%\aut1.tmp
- %TEMP%\tzslipb
- %TEMP%\aut2.tmp
- %HOMEPATH%\Start Menu\Programs\Startup\Client.exe
Network activity:
Connects to:
- 'pr####hat.ddns.net':1337
- 'az####loj.ddns.net':8899
UDP:
- DNS ASK pr####hat.ddns.net
- DNS ASK az####loj.ddns.net
Miscellaneous:
Creates and executes the following:
- '%TEMP%\EWMCYR.exe'
- '%HOMEPATH%\Start Menu\Programs\Startup\Client.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe'
- '%WINDIR%\Microsoft.NET\Framework\v4.0.30319\vbc.exe' /noconfig @"%TEMP%\llfvs55w.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES5.tmp" "%TEMP%\vbc4.tmp"
