rule Windows_Trojan_Behinder_b9a49f4b {
meta:
author = "Elastic Security"
id = "b9a49f4b-5923-420e-a9e6-9bfa05c93bbf"
fingerprint = "cb7856a7d3e792cc60837587fe4afc04448af74cb5ce0478a09eb129e53bf7f1"
creation_date = "2023-03-02"
last_modified = "2023-06-13"
description = "Webshell found in REF2924, either Behinder or Godzilla based shell in C#"
threat_name = "Windows.Trojan.Behinder"
reference = "https://www.elastic.co/security-labs/ref2924-howto-maintain-persistence-as-an-advanced-threat"
reference_sample = "a50ca8df4181918fe0636272f31e19815f1b97cce6d871e15e03b0ee0e3da17b"
severity = 100
arch_context = "x86, arm64"
scan_context = "file, memory"
license = "Elastic License v2"
os = "windows"
strings:
$load = { 53 79 73 74 65 6D 2E 52 65 66 6C 65 63 74 69 6F 6E 2E 41 73 73 65 6D 62 6C 79 }
$key = "e45e329feb5d925b" ascii wide
condition:
all of them
}