""ET TROJAN Blue Bot DDoS Proxy Request""

SID: 2021128

Revision: 6

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_05_21, deployment Perimeter, malware_family BlueBot, performance_impact Moderate, signature_severity Major, updated_at 2023_09_18, reviewed_at 2023_09_18

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: "/proxy"

  • Value: "Host|3a 20|" Depth: 6

  • Value: "|0d 0a|Connection|3a 20|Keep-Alive|0d 0a|"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+[\r\n]+Connection\x3a\x20Keep-Alive[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source