Ransom_Win32_Petya_C

YARA detection rule by roadwy

Ransom:Win32/Petya.C,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 0f 00 00

rule Ransom_Win32_Petya_C{
	meta:
		description = "Ransom:Win32/Petya.C,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 0f 00 00 "
		
	strings :
		$a_00_0 = {59 6f 75 20 62 65 63 61 6d 65 20 76 69 63 74 69 6d 20 6f 66 20 74 68 65 20 47 4f 4c 44 45 4e 45 59 45 20 52 41 4e 53 4f 4d 57 41 52 45 21 } 		$a_00_1 = {59 6f 75 20 63 61 6e 20 70 75 72 63 68 61 73 65 20 74 68 69 73 20 6b 65 79 20 6f 6e 20 74 68 65 20 64 61 72 6b 6e 65 74 20 70 61 67 65 20 73 68 6f 77 6e } 		$a_00_2 = {54 6f 20 70 75 72 63 68 61 73 65 20 79 6f 75 72 20 6b 65 79 20 61 6e 64 20 72 65 73 74 6f 72 65 20 79 6f 75 72 20 64 61 74 61 2c 20 70 6c 65 61 73 65 20 66 6f 6c 6c 6f 77 20 74 68 65 73 65 20 74 68 72 65 65 20 65 61 73 79 20 73 74 65 70 73 3a } 		$a_00_3 = {45 6e 74 65 72 20 79 6f 75 72 20 70 65 72 73 6f 6e 61 6c 20 64 65 63 72 79 70 74 69 6f 6e 20 63 6f 64 65 20 74 68 65 72 65 3a } 		$a_01_4 = {73 72 77 03 70 65 66 03 72 61 66 03 6f 72 66 03 } 		$a_01_5 = {77 6d 61 03 77 6d 76 03 6f 67 67 03 73 77 66 24 } 		$a_00_6 = {08 23 23 55 52 4c 31 23 23 08 23 23 55 52 4c 32 23 23 08 23 23 43 4f 44 45 23 23 } 		$a_00_7 = {25 73 5c 53 79 73 74 65 6d 33 32 5c 6b 65 72 6e 65 6c 33 32 2e 64 6c 6c 3a 31 32 33 34 35 36 37 38 } 		$a_00_8 = {25 73 5c 73 79 73 74 65 6d 33 32 5c 25 63 2a 25 63 2e 65 78 65 } 		$a_00_9 = {25 73 5c 73 79 73 74 65 6d 33 32 5c 25 73 } 		$a_00_10 = {25 73 5c 7b 25 73 7d } 		$a_00_11 = {3a 2f 2f 67 6f 6c 64 65 6e } 		$a_00_12 = {3a 2f 2f 69 70 69 6e 66 6f 2e 69 6f 2f 69 70 } 		$a_00_13 = {53 45 4c 45 43 54 20 2a 20 46 52 4f 4d 20 41 6e 74 69 76 69 72 75 73 50 72 6f 64 75 63 74 } 		$a_00_14 = {52 4f 4f 54 5c 53 65 63 75 72 69 74 79 43 65 6e 74 65 72 32 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1+(#a_01_4  & 1)*2+(#a_01_5  & 1)*2+(#a_00_6  & 1)*2+(#a_00_7  & 1)*2+(#a_00_8  & 1)*2+(#a_00_9  & 1)*1+(#a_00_10  & 1)*1+(#a_00_11  & 1)*1+(#a_00_12  & 1)*1+(#a_00_13  & 1)*1+(#a_00_14  & 1)*1) >=8
 
}

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

c88009b1-e4c8-48c6-888c-8a0aa77e5f1e

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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 ]]

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

[[ currentRule.title ]]

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