Skip to content

Unloading Sysmon Driver

Execution

{% code-tabs %} {% code-tabs-item title="attacker@victim" %}

fltMC.exe unload SysmonDrv
{% endcode-tabs-item %} {% endcode-tabs %}

Observations

Windows event logs suggesting SysmonDrv was unloaded successfully:

As well as processes requesting special privileges:

Note how in the last 35 minutes since the driver was unloaded, no further process creation events were recorded, although I spawned new processes during that time:

Note how the system thinks that the sysmon is still running, which it is, but not doing anything useful:

References

{% embed url="https://twitter.com/Moti_B/status/1019307375847723008" %}