SEKOIA_Crime_Sload_Zip_Archives

rule SEKOIA_Crime_Sload_Zip_Archives : FILE
{
	meta:
		description = "Detects ZIP archives used by sLOad"
		author = "Sekoia.io"
		id = "5335ad65-bca5-4937-8634-46cbd7aa1b0e"
		date = "2022-08-01"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/crime_sload_zip_archives.yar#L1-L19"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "f2bc6464de008f2ce40acabd87ebbd91659d317f57e223118937ba51f70d0f7f"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$pic = { 00 00 00 [6] 2E ( 70 6E 67 | 67 69 66 | 6a 70 67 | 6A 70 65 67 ) }
		$pdf = { 00 00 00 [8] 2E 70 64 66 }
		$vbs = { ( 4c 65 67 67 69 6d 69 | 66 69 73 63 ) 2e ( 77 73 66 | 76 62 73 ) }

	condition:
		uint16be( 0 ) == 0x504B and filesize < 30KB and all of them
}