""ET TROJAN Observed ClickFix Fake Update iframe Injection Attempt""

SID: 2052606

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_05_14, deployment Perimeter, deployment SSLDecrypt, malware_family ClickFix, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_05_14

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "Click the|20 22|Copy fix|22 20|button below."

  • Value: "copyButton.addEventListener"

  • Value: "Invoke-Expression|20 28|Invoke-WebRequest|20 2d|Uri"

Within:

PCRE:

Special Options:

  • file_data

  • fast_pattern

source