Ransom_Win32_Loktrom

YARA detection rule by roadwy

Ransom:Win32/Loktrom,SIGNATURE_TYPE_PEHSTR_EXT,64 00 07 00 05 00 00

rule Ransom_Win32_Loktrom{
	meta:
		description = "Ransom:Win32/Loktrom,SIGNATURE_TYPE_PEHSTR_EXT,64 00 07 00 05 00 00 "
		
	strings :
		$a_01_0 = {64 8b 15 30 00 00 00 89 55 f8 8b 55 f8 8b 52 0c 8b } 		$a_01_1 = {64 8b 05 30 00 00 00 89 45 fc 8b 45 fc 8b 40 0c 89 } 		$a_01_2 = {8a 18 33 59 04 88 18 40 4a 75 } 		$a_03_3 = {8a 08 8b 5d ?? 33 4b 04 88 08 40 4a 75 } 		$a_01_4 = {8a 02 33 46 04 88 02 42 49 75 } 	condition:
		((#a_01_0  & 1)*5+(#a_01_1  & 1)*5+(#a_01_2  & 1)*2+(#a_03_3  & 1)*2+(#a_01_4  & 1)*2) >=7
 
}

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

192f1c34-ecdb-469f-9723-e3471b4396a0

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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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