""ET CURRENT_EVENTS Obfuscated Chase Phishing Landing 2016-03-23""
SID: 2032375
Revision: 4
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2016_03_23, deployment Perimeter, 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: established,to_client
Contents:
-
Value: "200"
-
Value: "Content-Type|3a 20|text/html"
-
Value: "document.write"
-
Value: "|25 32 45 25 36 33 25 36 38 25 36 31 25 37 33 25 36 35 25 32 45 25 36 33 25 36 46 25 36 44|"
Within:
PCRE: "/^\s?(\s?unescape\s*?(/Rsi"
Special Options:
-
http_stat_code
-
http_header
-
file_data