""ET TROJAN BunnyLoader 3.0 Heartbeat Response""

SID: 2050888

Revision: 1

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, created_at 2024_02_15, deployment Perimeter, malware_family BunnyLoader, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2024_02_15

Reference:

  • md5

  • 194118c43c65faad06bf5ff6cd9b52a2

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "content-length|3a 20|7|0d 0a|"

  • Value: "ACTIVE|0a|"

Within:

PCRE:

Special Options:

  • http_stat_code

  • http_header

  • file_data

  • fast_pattern

source