Ransom_Win32_Basta_PB_MTB

YARA detection rule by roadwy

Ransom:Win32/Basta.PB!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00

rule Ransom_Win32_Basta_PB_MTB{
	meta:
		description = "Ransom:Win32/Basta.PB!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_03_0 = {8b c8 8b 1e 83 e1 ?? 8b 7e ?? 33 d8 8b 76 08 33 f8 33 f0 d3 cf d3 ce d3 cb 3b fe } 		$a_01_1 = {59 6f 75 72 20 6e 65 74 77 6f 72 6b 20 68 61 73 20 62 65 65 6e 20 62 72 65 61 63 68 65 64 20 61 6e 64 20 61 6c 6c 20 64 61 74 61 20 77 61 73 20 65 6e 63 72 79 70 74 65 64 } 		$a_01_2 = {61 63 63 65 73 73 20 2e 6f 6e 69 6f 6e 20 77 65 62 73 69 74 65 } 		$a_01_3 = {63 6d 64 2e 65 78 65 20 2f 63 20 73 74 61 72 74 20 2f 4d 41 58 20 6e 6f 74 65 70 61 64 2e 65 78 65 } 	condition:
		((#a_03_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=4
 
}

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

01622077-24ed-4207-bb49-f4128dd8cac0

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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 ]]

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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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