SEKOIA_Tool_Htran_Strings

rule SEKOIA_Tool_Htran_Strings : FILE
{
	meta:
		description = "Detects HTran based on strings"
		author = "Sekoia.io"
		id = "0184937e-eefa-4c6d-ae00-9b0af80dc7db"
		date = "2022-09-09"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/tool_htran_strings.yar#L1-L22"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "6a414cec8ad623c735779b9005074f88b07d88b29b23918d98a541a2612a3fa0"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "-slave <ConnectHost> <ConnectPort> <TransmitHost> <TransmitPort>"
		$ = "-tran <ConnectPort> <TransmitHost> <TransmitPort>"
		$ = "-listen <ConnectPort> <TransmitPort>"
		$ = "[-] There is a error...Create a new connection."
		$ = "[+] Start Transmit (%s:%d <-> %s:%d) ......"
		$ = "[+] Accept a Client on port %d from %s"

	condition:
		uint16be( 0 ) == 0x4d5a and filesize < 1MB and 3 of them
}