""ET TROJAN TA457 Backdoor CnC Activity""

SID: 2037019

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_16, deployment Perimeter, malware_family TA457, signature_severity Major, updated_at 2022_08_29

Reference:

  • md5

  • 29b6b195cf0671901b75b7d2ac6814f6

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 1024:

Flow: established,to_server

Contents:

  • Value: "|23|2" Depth: 2

  • Value: "0000|7c|auto|7c|1|23|"

  • Value: "|23|"

Within: 13

PCRE:

Special Options:

  • fast_pattern

source