""ET TROJAN Anonymous RAT CnC Checkin""

SID: 2052875

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, tls_state plaintext, created_at 2024_05_23, deployment Perimeter, deployment SSLDecrypt, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2024_07_03

Reference:

• md5

• db9fd417244157770e31fb4b39e0e97a

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

• Value: "|00 00 00 00 ca|" Depth: 13

Within:

PCRE: "/^(?:\x00|\x01)/R"

Special Options:

• fast_pattern

source