""ET TROJAN ZharkBot CnC Exfil in HTTP URI""

SID: 2054414

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_07_09, deployment Perimeter, malware_family ZharkBOT, confidence Medium, signature_severity Critical, tag c2, updated_at 2024_07_09, 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: "GET"

  • Value: "|2f|api|3f|id|3d|"

  • Value: "&us="

  • Value: "&mn="

  • Value: "&os="

  • Value: "&bld="

  • Value: !"Referer|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_uri

  • http_header

source