""ET TROJAN Horabot CnC Host Details Exfil""

SID: 2052638

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_05_16, deployment Perimeter, malware_family Horabot, confidence High, signature_severity Critical, updated_at 2024_05_16, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/index.php"

  • Value: "|0d 0a|Expect|3a 20|100-continue|0d 0a|"

  • Value: "AT=" Depth: 3

  • Value: "-Bit|20|CPU|20 20 20|"

Within:

PCRE: "/^\x2f[a-zA-Z0-9]{2,3}\x2findex\x2ephp$/U"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • http_client_body

  • fast_pattern

source