Stan

I keep receiving pop up messages from my Symantec Endpoint Protection. one states Traffic from IP address ( various IP addresses ) is blocked from ( date and times given ) [ SID 20648] MS RPC Network DDE BO detected the other is similar but ends with [sID 20386] MS RPC SS attack (2) detected These messages have only appeared within the last week or so but are appearing more frequently... What do they mean ? What should I do next ? as a computer illiterate .... any info / help would be appreciated Stan

Just a quick hello from a new member.. Stan...... an ageing computer illiterate..