""ET TROJAN Suspected Sidewinder APT Phishing Activity - Landing Page URI Pattern""

SID: 2036785

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_and_Server, created_at 2022_06_02, deployment Perimeter, deployment SSLDecrypt, malware_family Sidewinder_APT, performance_impact Low, confidence Low, signature_severity Major, updated_at 2022_06_08

Reference:

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: "/" Depth: 1

  • Value: !"/"

  • Value: "-"

  • Value: "Sec-Fetch-Dest|3a 20|document|0d|"

  • Value: !"Referer|3a 20|"

Within: 25

PCRE: "/^\/[a-zA-Z0-9]{1,25}-[a-f0-9]{8}$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • http_header

source