Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Topology Desktop Remote Disk Thread' = '<SYSTEM32>\mhtoeyknykb.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\CNG PC Source Firewall Access] 'Start' = '00000002'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
- Windows Security Center
Creates and executes the following:
- '%WINDIR%\Temp\enclrj5wv7lbaz.exe' -r 24649 tcp
- '%WINDIR%\Temp\enclrj70jklbaz.exe' -r 33957 tcp
- '<SYSTEM32>\fvoyafoxuj.exe' "<SYSTEM32>\mhtoeyknykb.exe"
- '%TEMP%\enclrj4xp4lbaxdruogw.exe'
- '<SYSTEM32>\mhtoeyknykb.exe'
Modifies file system :
Creates the following files:
- <SYSTEM32>\vswbdiotokhmln\run
- <SYSTEM32>\vswbdiotokhmln\rng
- <SYSTEM32>\vswbdiotokhmln\cfg
- %WINDIR%\Temp\enclrj70jklbaz.exe
- %WINDIR%\Temp\enclrj5wv7lbaz.exe
- %TEMP%\enclrj4xp4lbaxdruogw.exe
- <SYSTEM32>\vswbdiotokhmln\tst
- <SYSTEM32>\vswbdiotokhmln\etc
- <SYSTEM32>\fvoyafoxuj.exe
- <SYSTEM32>\mhtoeyknykb.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\fvoyafoxuj.exe
- <SYSTEM32>\mhtoeyknykb.exe
Deletes the following files:
- %WINDIR%\Temp\enclrj5wv7lbaz.exe
- %WINDIR%\Temp\enclrj70jklbaz.exe
- <DRIVERS>\etc\hosts
- %TEMP%\enclrj4xp4lbaxdruogw.exe
Substitutes the HOSTS file.
Network activity:
Connects to:
- 'pa####ciostit.com':80
- 'ka####tixter.com':80
- 've####tistic.com':80
- 'jo###ryta.com':80
- 'gr####oholist.com':80
- 'gj####vcaouy.com':80
TCP:
HTTP GET requests:
- pa####ciostit.com/so31/isup.php?v=###################
- ka####tixter.com/so31/isup.php?v=###################
- ve####tistic.com/so31/isup.php?v=###################
- jo###ryta.com/so31/isup.php?v=###################
- gr####oholist.com/so31/isup.php?v=###################
- gj####vcaouy.com/so31/isup.php?v=###################
UDP:
- DNS ASK fa######pulepunctcom.com
- DNS ASK ge#####alixtentop.com
- DNS ASK ka####tixter.com
- DNS ASK af####chmonitor.com
- DNS ASK ja###uter.com
- DNS ASK wa####rbulldog.com
- DNS ASK gr####oholist.com
- DNS ASK jo###ryta.com
- DNS ASK gj####vcaouy.com
- DNS ASK ve####tistic.com
- DNS ASK pa####ciostit.com
- '23#.#55.255.250':1900