""ET SCAN StarDotStar HELO, suspected AUTH LOGIN botnet""

SID: 2026463

Revision: 3

Class Type: bad-unknown

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_09, deployment Perimeter, signature_severity Major, updated_at 2018_10_12

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: [25,587]

Flow: established,to_server

Contents:

• Value: "HELO|20 2a 2e 2a 0d 0a|" Depth: 11

Within:

PCRE:

Special Options:

source