Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'GERFEZ' = ''
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{QG5373W2-8777-62IA-45E5-V4O251PU3F7R}] 'StubPath' = '%WINDIR%\Crash\svchost.exe Restart'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{QG5373W2-8777-62IA-45E5-V4O251PU3F7R}] 'StubPath' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'HJ6T' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'HJ6T' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'FDHFR' = ''
Malicious functions:
Creates and executes the following:
- '%WINDIR%\Crash\svchost.exe'
Executes the following:
- '<SYSTEM32>\wbem\wmiadap.exe' /R /T
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%8
- %WINDIR%\Crash\svchost.exe
- %TEMP%\%USERNAME%2.txt
Sets the 'hidden' attribute to the following files:
- %WINDIR%\Crash\svchost.exe
Deletes the following files:
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%2.txt
Network activity:
Connects to:
- 'ad####amos.ddns.net':6622
UDP:
- DNS ASK ad####amos.ddns.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'MS_WINHELP' WindowName: ''