Ransom_Win32_Basta_YAF_MTB

YARA detection rule by roadwy

Ransom:Win32/Basta.YAF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00

rule Ransom_Win32_Basta_YAF_MTB{
	meta:
		description = "Ransom:Win32/Basta.YAF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00 "
		
	strings :
		$a_03_0 = {83 c7 04 8b 46 34 0f af 5e 3c 03 c2 33 81 c0 00 00 00 35 ?? ?? ?? ?? 89 81 c0 00 00 00 a1 ?? ?? ?? ?? 8b 4e 58 8b d3 c1 ea 08 88 14 08 ff 46 58 a1 ?? ?? ?? ?? 8b 80 d8 00 00 00 2d 64 d7 03 00 31 46 50 } 	condition:
		((#a_03_0  & 1)*1) >=1
 
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

c6fa90d8-c7fb-4803-9bed-27e5e9a77535

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

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