SEKOIA_Apt_Konni_Dropper

rule SEKOIA_Apt_Konni_Dropper : FILE
{
	meta:
		description = "Detects Konni dropper used when distributed via malicious document"
		author = "Sekoia.io"
		id = "0783a55e-1d1e-40ca-a661-2c5dec6d78d6"
		date = "2023-11-27"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_konni_dropper.yar#L1-L19"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "6d1b1f5ccbdc20908891e5f40ceb85c251b1ca2a395fa4b106e63718c6393a22"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "UnzipAFile"
		$ = "check.bat"
		$ = "FOF_SILENT"
		$ = "fLieObj"

	condition:
		filesize < 1MB and 3 of them
}