""ET TROJAN Overtoolbar.net Backdoor ICMP Checkin Response""

SID: 2009131

Revision: 3

Class Type: trojan-activity

Metadata: created_at 2010_07_30, updated_at 2010_07_30

Reference:

Protocol: icmp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow:

Contents:

• Value: "Echo This"

Within:

PCRE:

Special Options:

source