""ET TROJAN Brute Ratel Fake User-Agent""

SID: 2038840

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_15, deployment Perimeter, deployment SSLDecrypt, malware_family BruteRatel, performance_impact Significant, signature_severity Major, updated_at 2023_04_14

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a 20|Mozilla|2f|5|2e|0|20 28|Windows|20|NT|20|10|2e|0|3b 20|Win64|3b 20|x64|29 0d 0a|"

  • Value: !"Host|3a 20|www.pspad.com|0d 0a|"

Within:

PCRE:

Special Options:

  • http_header

  • http_header

source