""ET TROJAN SunSeed Downloader Retrieving Binary (set)""

SID: 2035361

Revision: 3

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_02_28, deployment Perimeter, former_category MALWARE, signature_severity Major, updated_at 2022_04_18, reviewed_at 2023_08_25

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 / HTTP/1.1"

  • Value: "User-Agent|3a 20|Windows Installer|0d 0a|"

Within:

PCRE: "/^Host\x3a\x20\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}\r\n/Hm"

Special Options:

  • fast_pattern

  • http_header

source