""ET SCAN ICMP @hello request Likely Precursor to Scan""

SID: 2010641

Revision: 4

Class Type: misc-activity

Metadata: created_at 2010_07_30, updated_at 2017_05_11

Reference:

Protocol: icmp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow:

Contents:

• Value: "@hello ???"

Within:

PCRE:

Special Options:

source