Ransom_Win32_JSWorm_A_MTB

YARA detection rule by roadwy

Ransom:Win32/JSWorm.A!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00

rule Ransom_Win32_JSWorm_A_MTB{
	meta:
		description = "Ransom:Win32/JSWorm.A!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {44 45 43 52 59 50 54 2e 68 74 61 } 		$a_01_1 = {4a 53 57 4f 52 4d } 		$a_01_2 = {2f 63 20 72 65 67 20 61 64 64 20 48 4b 4c 4d 5c 53 4f 46 54 57 41 52 45 5c 4d 69 63 72 6f 73 6f 66 74 5c 57 69 6e 64 6f 77 73 5c 43 75 72 72 65 6e 74 56 65 72 73 69 6f 6e 5c 52 75 6e 20 2f 76 20 22 7a 61 70 69 73 6b 61 22 20 2f 64 20 22 } 		$a_01_3 = {2f 63 20 76 73 73 61 64 6d 69 6e 2e 65 78 65 20 64 65 6c 65 74 65 20 73 68 61 64 6f 77 73 20 2f 61 6c 6c 20 2f 71 75 69 65 74 } 	condition:
		((#a_01_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 ]]

2f054d92-f2da-4255-b9d4-27ed9c035f7f

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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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