""ET CURRENT_EVENTS Possible Covid19 Themed Email Spam Outbound M5""
SID: 2029780
Revision: 2
Class Type: bad-unknown
Metadata: created_at 2020_03_31, updated_at 2020_03_31
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: [25,587]
Flow: to_server,established
Contents:
- Value: "covid-19"
Within:
PCRE:
Special Options:
-
nocase
-
fast_pattern