Obviously SNR is on, but search and tracking radars are using a dummy load. The Guidance radar is providing active course/LOS information to the missile beacon.

I assume that it merely flies as a SACLOS missile along the LOS.

The target *may* get a launch warning if their ECM fit is aware of the relevant frequencies and 9M33 operation modes, but not enough to locate or fire an ARM against it. An optical ASM might be a possibility if the launch site can be identified, but the SAM will reach the target before the ASM reaches the ground, and it would need to be another aircraft that Id'd and targeted the launcher, while the target attempts to/evades the missile.