SEKOIA_Ransomware_Win_Agenda

rule SEKOIA_Ransomware_Win_Agenda : FILE
{
	meta:
		description = "Finds Agenda ransomware (aka Qilin) samples based on characteristic strings"
		author = "Sekoia.io"
		id = "b0ea8e69-8f29-452f-95f7-67ee0e545b66"
		date = "2022-12-15"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/ransomware_win_agenda.yar#L1-L26"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "7e315f639c4d785639bf7ed3bd805551366b4da10a664a42bf801c54c6f7bd2d"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$str00 = "\"note\": \"-- Qilin" ascii
		$str01 = "README-RECOVER-.txt" ascii
		$str02 = "\"file_black_list\": [" ascii
		$str03 = "\"file_pattern_black_list\": [" ascii
		$str04 = "Encrypted files have new extension." ascii
		$str05 = "We have downloaded compromising and sensitive data from you system/network" ascii
		$str06 = "Employees personal dataCVsDLSSN." ascii
		$str07 = "ueegj65kwr3v3sjhli73gjtmfnh2uqlte3vyg2kkyqq7cja2yx2ptaad.onion" ascii
		$str08 = "cmdvssadmin.exe delete shadows /all /quiet" ascii
		$str09 = "[WARNING] Removing shadows failed." ascii
		$str10 = "[INFO] Shadow copies removed" ascii
		$str11 = "[WARNING] net sahre enum failed with:" ascii

	condition:
		uint16( 0 ) == 0x5A4D and 2 of them
}