Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ubecohut' = '"%WINDIR%\ukes\yqaxigyr.exe"'
Malicious functions:
Executes the following:
- '%WINDIR%\explorer.exe'
- '<SYSTEM32>\attrib.exe'
Injects code into
the following system processes:
- <SYSTEM32>\ctfmon.exe
- <SYSTEM32>\attrib.exe
a large number of user processes.
Modifies file system :
Creates the following files:
- %ALLUSERSPROFILE%\Application Data\imonyjyk\ubuzgpag.dat
- %ALLUSERSPROFILE%\Application Data\imonyjyk\ngufyzyg.dat
- %WINDIR%\ukes\yqaxigyr.exe
- %ALLUSERSPROFILE%\Application Data\ymnditot\ycocogkf.dat
- %ALLUSERSPROFILE%\Application Data\idynuwor\obesonyt.dat
- %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\Preferred
- %APPDATA%\Microsoft\Protect\S-1-5-21-2052111302-484763869-725345543-1003\52513715-3f03-42e6-8ab4-9dc3877a93ce
- %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-2052111302-484763869-725345543-1003\ec702f375e1b12d218f67ab9ef19ca23_23ef5514-3059-436f-a4a7-4cefaab20eb1
- %ALLUSERSPROFILE%\Application Data\Sun\ehusycof.bkp
- %ALLUSERSPROFILE%\Application Data\imonyjyk\ehusycof.dat
Network activity:
Connects to:
- 'mi#####saving-data.us':443
UDP:
- DNS ASK mi#####saving-data.us
Miscellaneous:
Searches for the following windows:
- ClassName: 'shell_traywnd' WindowName: '(null)'
