Ransom_Win32_SanwaiCrypt_PA_MTB

YARA detection rule by roadwy

Ransom:Win32/SanwaiCrypt.PA!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 05 00 00

rule Ransom_Win32_SanwaiCrypt_PA_MTB{
	meta:
		description = "Ransom:Win32/SanwaiCrypt.PA!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 05 00 00 "
		
	strings :
		$a_01_0 = {2e 73 61 6e 77 61 69 } 		$a_01_1 = {79 6f 75 72 20 6f 77 6e 20 72 69 73 6b } 		$a_01_2 = {49 4d 50 4f 52 54 41 4e 54 2e 68 74 6d 6c } 		$a_01_3 = {52 45 41 44 4d 45 21 21 21 21 2e 74 78 74 } 		$a_01_4 = {5c 67 65 72 6a 6a 6b 72 6b 6a 6a 6b 33 33 2e 70 64 62 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1) >=4
 
}

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

f797b48c-475b-4ba1-b9e3-7c1bcc8dd053

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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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