Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'gjhax_16.exe' = '%APPDATA%\Z0BAZwxx\gjhax_16.exe'
Malicious functions
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following
- '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Z0BAZwxx" dir=in action=allow program="%APPDATA%\Z0BAZwxx\gjhax_16.exe"
Injects code into
the following user processes:
- gjhax_16.exe
- iexplore.exe
Hooks functions
in browsers
- iexplore.exe process, wininet.dll module
Searches for windows to
detect analytical utilities:
- ClassName: 'OLLYDBG', WindowName: ''
- ClassName: 'GBDYLLO', WindowName: ''
- ClassName: 'pediy06', WindowName: ''
- ClassName: 'FilemonClass', WindowName: ''
- ClassName: '', WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
- ClassName: '', WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'RegmonClass', WindowName: ''
- ClassName: '', WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
Modifies file system
Creates the following files
- %APPDATA%\z0bazwxx\gjhax_16.exe
Deletes itself.
Network activity
TCP
HTTP POST requests
- http://lt.#cab.pk/n/tasks.php
UDP
- DNS ASK ns.##tbit.me
- DNS ASK lt.#cab.pk
- DNS ASK al###.###pdns.cryptostorm.net
- DNS ASK on##.####dns.cryptostorm.net
- DNS ASK ns#.###.dns.d0wn.biz
- DNS ASK ns#.###dom.dns.d0wn.biz
- DNS ASK an####.dnsrec.meo.ws
- DNS ASK is#.#ellig.org
- DNS ASK ci###.ziphaze.com
- DNS ASK ns#.##.dns.d0wn.biz
Miscellaneous
Searches for the following windows
- ClassName: '18467-41' WindowName: ''
Creates and executes the following
- '%APPDATA%\z0bazwxx\gjhax_16.exe'
- '%APPDATA%\z0bazwxx\gjhax_16.exe' ' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /a /c ping 127.0.0.1 -n 3&del "<Full path to file>"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /a /c netsh advfirewall firewall add rule name="Z0BAZwxx" dir=in action=allow program="%APPDATA%\Z0BAZwxx\gjhax_16.exe"' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /a /c ping 127.0.0.1 -n 3&del "<Full path to file>"
- '%WINDIR%\syswow64\ping.exe' 127.0.0.1 -n 3
- '%WINDIR%\syswow64\cmd.exe' /a /c netsh advfirewall firewall add rule name="Z0BAZwxx" dir=in action=allow program="%APPDATA%\Z0BAZwxx\gjhax_16.exe"
