""ET TROJAN Win32/Numando Banker CnC Activity""

SID: 2033983

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_09_17, deployment Perimeter, signature_severity Major, updated_at 2021_09_17, reviewed_at 2023_08_22

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: [!80,!443]

Flow: established,to_server

Contents:

  • Value: "<|7c|>1<|7c|>"

Offset: 7

  • Value: "<|7c|>Microsoft|20|Windows"

  • Value: "<|7c|>0<|7c|>"

Within:

PCRE:

Special Options:

source