From cisecurity.org
In October 2020, the MS-ISAC observed two malware (Bolek and NanoCore) return to the Top 10, as well as two new variants (DirectsX and Glupteba) enter the Top 10. The Top 10 Malware variants composed 78% of Total Malware activity in October 2020, down from 87% in September 2020. This decrease is largely due to the recent Shlayer campaign slowing down. Shlayer is highly likely to continue its prevalence in the Top 10 Malware for the coming months.