#1654 7Zip installer vulnerable to DLL hijacking

[Eric Lawrence]

The 7-zip installer is vulnerable to DLL hijacking attacks, similar to those described here: https://textplain.wordpress.com/2015/12/18/dll-hijacking-just-wont-die/

For instance, a planted trojan DLL named "netutils.dll" is loaded and executed by the installer as it completes running on Windows 10.