Technical Information
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe
Modifies file system
Creates the following files
- %LOCALAPPDATA%\microsoft\clr_v4.0_32\usagelogs\installutil.exe.log
Network activity
Connects to
- 'dk.###tym2.sa.com':443
- 'x1.#.lencr.org':80
TCP
HTTP GET requests
- http://x1.#.lencr.org/
Other
- 'dk.###tym2.sa.com':443
UDP
- DNS ASK dk.###tym2.sa.com
- DNS ASK x1.#.lencr.org
Miscellaneous
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c ipconfig /release
- '%WINDIR%\syswow64\ipconfig.exe' /release
- '%WINDIR%\microsoft.net\framework\v4.0.30319\installutil.exe'
- '%WINDIR%\syswow64\cmd.exe' /c ipconfig /renew
- '%WINDIR%\syswow64\ipconfig.exe' /renew
- '%WINDIR%\syswow64\cmd.exe' /c ipconfig /release' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c ipconfig /renew' (with hidden window)
