""ET TROJAN Cobalt Strike Malleable C2 JQuery Custom Profile Response""

SID: 2033009

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 2021_05_21, deployment Perimeter, malware_family Cobalt_Strike, signature_severity Major, updated_at 2021_05_21, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation

Reference:

  • md5

  • 09773b90da8f3688faf54750b6a5ecf5

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "/*!|20|jQuery|20|v" Depth: 12

  • Value: "if|28|e|5b|n|5d 3d 3d 3d|t|29|return n|3b|return|2d|1|7d 2c|P|3d 22|"

  • Value: !"checked"

Within: 7

PCRE:

Special Options:

  • file_data

  • fast_pattern

source