SEKOIA_Tool_Koblas_Server_Strings

rule SEKOIA_Tool_Koblas_Server_Strings : FILE
{
	meta:
		description = "Detects Koblas server"
		author = "Sekoia.io"
		id = "ebd891da-69dd-474c-9e08-63d0b4cc654e"
		date = "2024-05-23"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/tool_koblas_server_strings.yar#L1-L19"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "590f3f71564c347be7b3b2a583606c3854744d0023cde464374cd7b61ec5a2d7"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "sent {sent} bytes and received {received} bytes" wide ascii
		$ = "connection denied" ascii
		$ = "loaded {} users" ascii
		$ = "listening on {}:{} for incoming connections" ascii

	condition:
		( uint32be( 0 ) == 0x7f454c46 or uint16be( 0 ) == 0x4d5a ) and 3 of them
}