""ET CURRENT_EVENTS Successful PNC Bank Phish 2016-01-09""

SID: 2032671

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2016_01_09, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2016_02_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

• Value: "POST"

• Value: ".php?LOB="

• Value: ".php?LOB="

• Value: "user"

• Value: "pass"

Within:

PCRE: "/^POST[^\r\n]+(?P[a-f0-9]{32})\/(?:[^\r\n]+\r\n)+Referer\x3a\x20http(s)?:\/\/[^\r\n]+(?P=hash)/mi"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_header

• nocase

• http_client_body

• nocase

• http_client_body

source