Ransom_MSIL_Crydap_A

YARA detection rule by roadwy

Ransom:MSIL/Crydap.A,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 05 00 00

rule Ransom_MSIL_Crydap_A{
	meta:
		description = "Ransom:MSIL/Crydap.A,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 05 00 00 "
		
	strings :
		$a_00_0 = {43 72 79 70 74 6f 77 61 6c 6c 2e 50 72 6f 70 65 72 74 69 65 73 } 		$a_00_1 = {50 61 64 43 72 79 70 74 2e 70 64 62 } 		$a_00_2 = {43 72 79 70 74 6f 77 61 6c 6c 5c 62 69 6e 5c 44 65 62 75 67 5c 4f 62 66 75 73 63 61 74 65 64 5c } 		$a_80_3 = {50 61 64 43 72 79 70 74 2e 65 78 65 } 		$a_00_4 = {24 66 61 30 37 38 30 64 33 2d 62 31 34 35 2d 34 32 34 33 2d 38 36 62 39 2d 66 31 63 36 62 37 62 38 61 31 32 30 00 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_80_3  & 1)*1+(#a_00_4  & 1)*1) >=4
 
}

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

a6d8e453-8854-4db1-ad6a-fdf64b7a7751

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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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