>while mining at network chain broken by ATTACK seems to be inactive now (have last block with height 899361 mined about 8 hours ago).

2019-Feb-22 23:52:30.361450 INFO    [92.187.112.30:51902 INC] Sync data returned unknown top block: 781750 -> 899404 [117654 blocks (81 days) behind]                 

Attacked network chain:
30.1.2019 - last block 899361, yesterday 23.2.2019 - last block 899404

So they have less than 2 blocks.per day. I hope, that approximately within 80 days, in the middle of May 2019 our FIX-ed chain will be ahead of this ATTACKED chain.