SEKOIA_Hacktool_Nbtscan_Strings

rule SEKOIA_Hacktool_Nbtscan_Strings : FILE
{
	meta:
		description = "Detects NBTScan hacktool based on strings, ELF & PE variants"
		author = "Sekoia.io"
		id = "8883b56c-a085-459c-9ec6-a139ad5a2671"
		date = "2022-02-06"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/hacktool_nbtscan_strings.yar#L1-L21"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "87e4f5dd16ee29dfd23b70dccbc41b0ef40c2db28f42fbd7fd84e5e93ca5c943"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "CHT:nfp:bt:vw:mVO:1P"
		$ = "usage: %s [options] target [targets...]"
		$ = "Targets are lists of IP addresses, DNS names, or address"
		$ = "net bits [%d] must be 1..32"
		$ = "subnet /%d is too large (%d max)"
		$ = "[%s] is invalid IP address"
		$ = "[%s] is an invalid target (bad IP/hostname)"

	condition:
		uint16be( 0 ) == 0x4d5a and 5 of them
}