During last night lock, for a short period some excess noise appeared at around 185 Hz and 360-470 Hz. This is very visible in the spectrogram, and also in a direct comparison of the spectrum during the noisy period and a quiet period right after.

I ran two BruCo scans for the low and high noises. See

Low noise: bruco_lho_1236051018low
High noise: bruco_lho_1236050668high

The only noticeable difference is that in the high noise state, there is a teeny bit of coherence with squeezer signals. I picked one signal (H1:SQZ-SHG_PWR_RIN_OUT_DQ) and found that 

1. the signal is more noisy in coincidence with the time when DARM is noisy too
2. some wandering lines (like the 79 Hz) are common to both signals