SEKOIA_Infostealer_Win_44Caliber

rule SEKOIA_Infostealer_Win_44Caliber : FILE
{
	meta:
		description = "Finds samples of the 44Caliber stealer"
		author = "Sekoia.io"
		id = "44e5bbc1-f442-47d3-8431-25182f38439d"
		date = "2022-03-08"
		modified = "2024-12-19"
		reference = "https://github.com/razexgod/44CALIBER"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/infostealer_win_44caliber.yar#L1-L28"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "4b80d6b2116f53926897aa79a7c232413974caefaf524f50e6a7cede11f3aaa0"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$str0 = "44 CALIBER" fullword ascii
		$str1 = "https://api.vimeworld.ru/user/name/" wide
		$str2 = "https://freegeoip.app/xml/" wide
		$str3 = "SOFTWARE\\Wow6432Node\\Valve\\Steam" wide
		$str4 = "VPN\\NordVPN\\\\accounts.txt" wide
		$str5 = "OpenVPN Connect\\profiles" wide
		$str6 = "FuckTheSystem Copyright" wide
		$str7 = "lolz.guru" wide
		$str8 = "xss.is" wide
		$str9 = "Test message recieved successfully! :raised_hands:" wide
		$str10 = "Specify a single character: either D or F" wide

	condition:
		uint16( 0 ) == 0x5A4D and 9 of ( $str* ) and filesize > 100KB and filesize < 1MB
}