Ransom_Win32_Filecoder_SA_MSR_2

YARA detection rule by roadwy

Ransom:Win32/Filecoder.SA!MSR,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 04 00 00

rule Ransom_Win32_Filecoder_SA_MSR_2{
	meta:
		description = "Ransom:Win32/Filecoder.SA!MSR,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 04 00 00 "
		
	strings :
		$a_01_0 = {6b 77 76 68 72 64 69 62 67 6d 6d 70 6b 68 6b 69 64 72 62 79 34 6d 63 63 77 71 70 64 73 35 7a 61 36 75 6f 32 74 68 63 77 35 67 7a 37 35 71 6e 63 76 37 72 62 68 79 61 64 2e 6f 6e 69 6f 6e } 		$a_01_1 = {42 00 79 00 70 00 61 00 73 00 73 00 20 00 4b 00 72 00 65 00 6d 00 65 00 7a 00 } 		$a_01_2 = {61 00 6b 00 6f 00 2d 00 72 00 65 00 61 00 64 00 6d 00 65 00 2e 00 74 00 78 00 74 00 } 		$a_01_3 = {45 4e 43 52 59 50 54 45 44 20 46 49 4c 45 53 } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*1+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1) >=3
 
}

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

adc73c1d-248c-483e-a4a3-572b7a69c953

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