An even funnier way to disable windows defender.
Defendnot is a successor of no-defender.
There's a WSC (Windows Security Center) service in Windows which is used by antiviruses to let Windows know that there's some other antivirus in the hood and it should disable Windows Defender.
This WSC API is undocumented and furthermore requires people to sign an NDA with Microsoft to get its documentation.
The initial implementation of no-defender used thirdparty code provided by other AVs to register itself in the WSC, while defendnot interacts with WSC directly.
Sadly, to keep this WSC stuff even after reboot, defendnot adds itself to the autorun. Thus, you would need to keep the defendnot binaries on your disk :(
Usage: defendnot-loader [--help] [--version] [--name VAR] [--disable] [--verbose]
Optional arguments:
-h, --help shows help message and exits
-v, --version prints version information and exits
-n, --name av display name [default: "https://github.com/es3n1n/defendnot"]
-d, --disable disable defendnot
-v, --verbose verbose logging
How I ruined my vacation by reverse engineering WSC
- mrbruh for poking me to research this topic
- pindos for providing their machine for WSC service debugging
Apache-2.0