""ET TROJAN Observed Emotet Maldoc Retrieving Payload (2023-03-07) M3""

SID: 2044537

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_03_09, deployment Perimeter, malware_family Emotet, signature_severity Major, updated_at 2023_03_09

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: "/?2"

  • Value: !"Referer|3a 20|"

  • Value: "Accept|3a 20 2a 2f 2a 0d 0a|"

Within: 50

PCRE: "/\/\?2[0-9]{5}(?:&c=\d{1,2})?$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source