""ET TROJAN Marai Variant Activity (Inbound)""

SID: 2049394

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_11_29, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2023_11_29

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 1024:

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|00 15 00 00 00 3c 0a 01 d1 de 72 00 18 01 07 05 32 35 35 36 35|"

Within:

PCRE:

Special Options:

  • fast_pattern

source