SID: 2034511

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_11_18, deployment Perimeter, malware_family Kimsuky, signature_severity Major, updated_at 2021_11_18

Reference:

  • md5

  • e521c68ac280c00b0e27cbd2fed4c9c4

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET /?query=5 HTTP/1.1"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^Accept\x3a\x20[^\r\n]+\r\nAccept-Language\x3a\x20[^\r\n]+\r\nAccept-Encoding\x3a\x20[^\r\n]+\r\n/Hm"

Special Options:

  • fast_pattern

  • http_header

source