Ransom_MSIL_Gansom_AA_MSR

YARA detection rule by roadwy

Ransom:MSIL/Gansom.AA!MSR,SIGNATURE_TYPE_PEHSTR_EXT,02 00 02 00 02 00 00

rule Ransom_MSIL_Gansom_AA_MSR{
	meta:
		description = "Ransom:MSIL/Gansom.AA!MSR,SIGNATURE_TYPE_PEHSTR_EXT,02 00 02 00 02 00 00 "
		
	strings :
		$a_01_0 = {72 65 70 6f 73 5c 52 61 6e 73 6f 6d 77 61 72 65 5c 52 61 6e 73 6f 6d 77 61 72 65 5c 6f 62 6a 5c 44 65 62 75 67 5c 52 61 6e 73 6f 6d 77 61 72 65 2e 70 64 62 } 		$a_01_1 = {52 61 6e 73 6f 6d 77 61 72 65 2e 65 78 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1) >=2
 
}

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

78f72ca6-1ac8-44f4-9270-0fa46863b88d

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