SID: 2034840

Revision: 4

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_12_23, deployment Perimeter, malware_family Kimsuky, performance_impact Moderate, signature_severity Major, updated_at 2024_04_25, reviewed_at 2023_08_22

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: ".php?id=1"

  • Value: "|3b 20|ms-office|3b 20|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+\x3b\x20ms-office\x3b\x20/Hmi"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source