Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Cgjaycyyny' = '"%APPDATA%\Ctjgm\Cgjaycyyny.exe"'
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe
Terminates or attempts to terminate
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe
Modifies file system
Creates the following files
- %APPDATA%\ctjgm\cgjaycyyny.exe
Network activity
Connects to
- 'st######t2054.duckdns.org':4203
- 'microsoft.com':80
TCP
HTTP GET requests
- http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
Other
- 'st######t2054.duckdns.org':4203
UDP
- DNS ASK st######t2054.duckdns.org
- DNS ASK microsoft.com
Miscellaneous
Creates and executes the following
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
- '%WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe'
