""ET TROJAN ZharkBot User-Agent Observed""

SID: 2054413

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2024_07_09, deployment Perimeter, malware_family ZharkBOT, confidence High, signature_severity Major, 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: "OpiumG4ng"

Within:

PCRE: "/User-Agent\x3a\x20[^\r\n]+OpiumG4ng/H"

Special Options:

  • http_header

  • fast_pattern

source