SEKOIA_Backoor_Win_Gobear

import "pe"
import "hash"

rule SEKOIA_Backoor_Win_Gobear
{
	meta:
		description = "Detect the GoBear backdoor used by Kimsuky"
		author = "Sekoia.io"
		id = "f922bf1b-652e-4a2f-91e9-76ecd2e3bf6a"
		date = "2024-02-13"
		modified = "2024-12-19"
		reference = "https://medium.com/s2wblog/kimsuky-disguised-as-a-korean-company-signed-with-a-valid-certificate-to-distribute-troll-stealer-cfa5d54314e2"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/backoor_win_gobear.yar#L4-L18"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "8ca2699058ded62cbf4b78040985a4e5ebce0a1ff94034206c81a4c8e91f479b"
		score = 75
		quality = 80
		tags = ""
		version = "1.0"
		classification = "TLP:CLEAR"

	condition:
		for any i in ( 0 .. pe.number_of_resources -1 ) : ( hash.sha256 ( pe.resources [ i ] . offset , pe.resources [ i ] . length ) == "668031f53390dc749971888029911c12d4171534f77c17a962e698bf121d0e20" )
}