DITEKSHEN_MALWARE_Win_Protonbot

rule DITEKSHEN_MALWARE_Win_Protonbot : FILE
{
	meta:
		description = "Detects ProtonBot loader"
		author = "ditekSHen"
		id = "b0d08378-0297-5e70-99f1-1dc0fec6fa01"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L2952-L2969"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "b511dfd47109d36ffc7fcb23b49779e1164d50a28061ab724d7a2c744ac23ac8"
		score = 75
		quality = 75
		tags = "FILE"
		clamav_sig = "MALWARE.Win.Trojan.ProtonBot"

	strings:
		$x1 = "\\PROTON\\Release\\build.pdb" ascii
		$x2 = "\\proton\\proton bot\\json.hpp" wide
		$x3 = "proton bot" ascii wide
		$s1 = "endptr == token_buffer.data() + token_buffer.size()" fullword wide
		$s2 = "ranges.size() == 2 or ranges.size() == 4 or ranges.size() == 6" fullword wide
		$s3 = "ref_stack.back()->is_array() or ref_stack.back()->is_object()" fullword wide
		$s4 = "ktmw32.dll" fullword ascii
		$s5 = "@detail@nlohmann@@" ascii
		$s6 = "urlmon.dll" fullword ascii

	condition:
		uint16( 0 ) == 0x5a4d and ( 2 of ( $x* ) or ( all of ( $s* ) and 1 of ( $x* ) ) )
}