""ET CURRENT_EVENTS Obfuscated Phishing Landing 2016-12-19""

SID: 2032415

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2016_12_19, deployment Perimeter, performance_impact Low, signature_severity Major, tag Phishing, updated_at 2017_12_29, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: to_client,established

Contents:

• Value: "200"

• Value: "Content-Type|3a 20|text/html"

• Value: "data|3a|text/html|3B|base64"

• Value: "PCFET0NUWVBFIEhUTUw"

• Value: "PHRpdGxlPlNpZ24gSW48L3RpdGxlPg"

Within:

PCRE:

Special Options:

• http_stat_code

• http_header

• file_data

• nocase

• nocase

• fast_pattern

• nocase

source