I was looking through the hashrates of various cryptonote coins and nearly every single one had bumped hashrates 10-20 times their normal amounts at the end of the day on October 9th going into the 10th.
For example, October 9th XMR had a hashrate of 14MH/s and for just a short time on the 10th it jumped up to 243MH/s. This pattern is seen on most cryptonote coins.
I understand that it could be botnets but that'd be one huge botnet, and why didn't it stay that way very long?
Also, I understand that maybe there would be some issues with blockchain explorers, but this seems to show up on multiple explorers.
The jump lasted only a few hours, all within the same timespan. Check out the charts yourself:
http://chainradar.com/xmr/chartXMR, MCN, FCN, QCN, DSH, and BCN all show the same sudden bump in hashrate, then an immediate decline. There is even a noticeable bump in BBR and XDN around the same time. However, AEON did not show this bump (or at least it's not as apparent). Contrary, AEON experienced something similar on July 31st.
I searched to see if this was already discussed but I only found a few other people mentioning the bump within the XMR thread.