""ET TROJAN Cobalt Strike Malleable C2 (Wordpress Profile)""

SID: 2032755

Revision: 3

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_02_16, deployment Perimeter, deployment SSLDecrypt, malware_family Cobalt_Strike, signature_severity Major, updated_at 2022_04_18, reviewed_at 2023_08_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation

Reference:

• md5

• e75bef518faea38765cb91b71ba6c8a8

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: "/admin"

• Value: "Accept-Language|3a 20|en-GB|3b|q=0.9,|20|*|3b|q=0.7"

Within:

PCRE: "/^wordpress_[a-z0-9]{32}=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/C"

Special Options:

• http_method

• http_uri

• http_header

source