DITEKSHEN_MALWARE_Win_Browsergrabber

rule DITEKSHEN_MALWARE_Win_Browsergrabber : FILE
{
	meta:
		description = "Hunt for FOXGRABBER-like samples but for various browsers"
		author = "ditekSHen"
		id = "a50a60cf-5ab8-5e4e-be00-aa0306f4d84f"
		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#L5892-L5906"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "c96a63566280758d8c32542bfab3c6faa7d21329430345f51ea4c2f0a6809dc2"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "start grabbing" wide
		$s2 = "end grabbing in" wide
		$s3 = "error of copying files from comp:" wide
		$s4 = /(Chrome|Edge)/ wide
		$ff = "\\Firefox\\" wide nocase
		$pdb1 = "\\obj\\Debug\\grab" ascii
		$pdb2 = "\\obj\\Release\\grab" ascii

	condition:
		uint16( 0 ) == 0x5a4d and not ( $ff ) and ( all of ( $s* ) or ( 1 of ( $pdb* ) and 1 of ( $s* ) ) )
}