Ransom_Win32_BastaLoader_NF_MTB

YARA detection rule by roadwy

Ransom:Win32/BastaLoader.NF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00

rule Ransom_Win32_BastaLoader_NF_MTB{
	meta:
		description = "Ransom:Win32/BastaLoader.NF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00 "
		
	strings :
		$a_03_0 = {88 14 01 33 c0 8b 15 ?? ?? ?? ?? 40 2b 05 ?? ?? ?? ?? 42 2b 05 ?? ?? ?? ?? 01 05 ?? ?? ?? ?? 8b 0d ?? ?? ?? ?? 2b 0d ?? ?? ?? ?? a1 ?? ?? ?? ?? 31 0d ?? ?? ?? ?? 89 15 ?? ?? ?? ?? 89 0d ?? ?? ?? ?? 88 1c 02 ff 05 ?? ?? ?? ?? 81 fe ?? ?? ?? ?? 0f 8c } 	condition:
		((#a_03_0  & 1)*1) >=1
 
}

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

6faa5c22-5114-48d0-86ec-5e3470fc5848

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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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