""ET CURRENT_EVENTS Possible Successful Craigslist Phishing Domain Feb 07 2017""

SID: 2023880

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2017_02_07, deployment Perimeter, signature_severity Critical, tag Phishing, updated_at 2017_02_07, 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: "craigslist.org"

• Value: !"craigslist.org|0d 0a|"

Within:

PCRE: "/^Host\x3a[^\r\n]+craigslist.org[^\r\n]{20,}\r\n/Hmi"

Special Options:

• http_method

• http_header

• fast_pattern

• http_header

source