""ET TROJAN Qbot Payload Request (2023-03-21) M9""

SID: 2044732

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 2023_03_22, deployment Perimeter, deployment SSLDecrypt, malware_family Qbot, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2023_03_24

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "GET"

• Value: ".php?9"

• Value: !"="

• Value: !"Referer|3a 20|"

Within:

PCRE: "/^\/(?P[a-z]{2,4})\/(?P=base_dir).php\?9[0-9]{4}$/U"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_uri

• http_header

source