SEKOIA_Malware_Venom_Agent_Strings

rule SEKOIA_Malware_Venom_Agent_Strings : FILE
{
	meta:
		description = "Detects Venom agent strings"
		author = "Sekoia.io"
		id = "87633510-8b39-4eb1-b95b-4ebff21f3bba"
		date = "2022-08-29"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/malware_venom_agent_strings.yar#L1-L31"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "66dd1cb7bd66fcf78c8eaad8aaab7cfd624b898b7b479e571bacf5c4e48edac9"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "dispather.handleDownloadCmd"
		$ = "dispather.handleUploadCmd"
		$ = "dispather.handleShellCmd"
		$ = "dispather.handleSocks5Cmd"
		$ = "dispather.handleLForwardCmd"
		$ = "dispather.localLForwardServer"
		$ = "dispather.handleRForwardCmd"
		$ = "dispather.AgentHandShake"
		$ = "dispather.AgentParseTarget"
		$ = "dispather.PipeWhenClose"
		$ = "dispather.handleSshConnectCmd"
		$ = "node.(*NetworkTopology).InitNetworkMap"
		$ = "node.CopyNet2Node"
		$ = "node.(*Node).CommandHandler.func1"
		$ = "node.(*Buffer).WriteLowLevelPacket"
		$ = "protocol.(*Packet).ResolveDat"
		$ = "netio.InitTCP.func2"

	condition:
		( uint32be( 0 ) == 0x7f454c46 or uint16be( 0 ) == 0x4d5a ) and filesize < 10MB and 6 of them
}