Ransom_Win32_Blobash_A

YARA detection rule by roadwy

Ransom:Win32/Blobash.A,SIGNATURE_TYPE_PEHSTR,1e 00 1e 00 03 00 00

rule Ransom_Win32_Blobash_A{
	meta:
		description = "Ransom:Win32/Blobash.A,SIGNATURE_TYPE_PEHSTR,1e 00 1e 00 03 00 00 "
		
	strings :
		$a_01_0 = {57 69 6e 52 41 52 5c 52 61 72 2e 65 78 65 22 20 61 20 2d 72 20 2d 79 20 2d 72 69 31 35 20 2d 64 66 20 2d 6d 30 20 2d 69 6e 75 6c 20 2d 70 25 70 61 73 73 25 20 25 66 69 6c 65 6e 61 6d 65 25 } 		$a_01_1 = {57 69 6e 52 41 52 5c 52 61 72 2e 65 78 65 22 20 63 20 25 66 69 6c 65 6e 61 6d 65 25 20 2d 7a 25 63 6f 6d 6d 65 6e 74 73 66 69 6c 65 25 } 		$a_01_2 = {4c 6f 63 6b 2e 72 61 72 } 	condition:
		((#a_01_0  & 1)*10+(#a_01_1  & 1)*10+(#a_01_2  & 1)*10) >=30
 
}

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

46f02c3b-c733-4932-aa3c-a1a4b6a63900

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