Ransom_Win32_Locky_A_2

YARA detection rule by roadwy

Ransom:Win32/Locky.A,SIGNATURE_TYPE_PEHSTR_EXT,0a 00 0a 00 11 00 00

rule Ransom_Win32_Locky_A_2{
	meta:
		description = "Ransom:Win32/Locky.A,SIGNATURE_TYPE_PEHSTR_EXT,0a 00 0a 00 11 00 00 "
		
	strings :
		$a_03_0 = {3d 67 65 74 90 09 03 00 c7 45 } 		$a_03_1 = {26 70 61 74 90 09 03 00 c7 45 } 		$a_03_2 = {6f 70 74 33 90 09 03 00 c7 45 } 		$a_03_3 = {26 6c 65 6e 90 09 03 00 c7 45 } 		$a_03_4 = {34 46 73 52 90 09 03 00 c7 45 } 		$a_03_5 = {34 44 69 73 90 09 03 00 c7 45 } 		$a_03_6 = {3d 73 74 61 90 09 03 00 c7 45 } 		$a_03_7 = {26 61 63 74 90 09 03 00 c7 45 } 		$a_03_8 = {26 65 6e 63 90 09 03 00 c7 45 } 		$a_03_9 = {26 6c 61 6e 90 09 03 00 c7 45 } 		$a_03_10 = {2f 31 2e 31 90 09 03 00 c7 45 } 		$a_03_11 = {52 53 41 31 90 09 06 00 c7 85 } 		$a_80_12 = {38 33 2e 32 31 37 2e 38 2e 36 31 } 		$a_80_13 = {33 31 2e 32 30 32 2e 31 33 30 2e 39 } 		$a_80_14 = {39 31 2e 32 33 34 2e 33 35 2e 31 30 36 } 		$a_80_15 = {2f 63 68 65 63 6b 75 70 64 61 74 65 } 		$a_01_16 = {ef bb bf 3d 24 7c 24 3d 2d 3d 2e 7e 0d 0a 20 20 20 20 20 20 20 20 20 20 20 20 21 21 21 20 49 4d } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_03_2  & 1)*1+(#a_03_3  & 1)*1+(#a_03_4  & 1)*1+(#a_03_5  & 1)*1+(#a_03_6  & 1)*1+(#a_03_7  & 1)*1+(#a_03_8  & 1)*1+(#a_03_9  & 1)*1+(#a_03_10  & 1)*1+(#a_03_11  & 1)*2+(#a_80_12  & 1)*1+(#a_80_13  & 1)*1+(#a_80_14  & 1)*1+(#a_80_15  & 1)*2+(#a_01_16  & 1)*2) >=10
 
}

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

f468cf04-ed5d-4bb7-b9d4-307b7a15712a

Propose edits, view related rules, and engage with the community through comments.

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 ]]

Community Discussion