""ET CURRENT_EVENTS Possible Injected JS Form Stealer Checking Page Contents M2""

SID: 2027816

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2019_08_07, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, tag CardSkimmer, updated_at 2019_08_07

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "200"

  • Value: "location.href.search|28|atob|28 27|Y"

  • Value: "|20|=|20|atob|28 27|aHR0cHM6L"

Within: 300

PCRE: "/^[2'][2h'+][2hl'+][2hlY'+][2hlY2'+][2hlY2t'+][2hlY2tv'+][2hlY2tvd'+][2hlY2tvdX'+]2hlY2tvdXQ'+{1,10}/R"

Special Options:

  • http_stat_code

  • file_data

  • fast_pattern

source