Trojan_Win32_Ursnif_XU_MTB

YARA detection rule by roadwy

Trojan:Win32/Ursnif.XU!MTB,SIGNATURE_TYPE_PEHSTR_EXT,06 00 06 00 06 00 00

rule Trojan_Win32_Ursnif_XU_MTB{
	meta:
		description = "Trojan:Win32/Ursnif.XU!MTB,SIGNATURE_TYPE_PEHSTR_EXT,06 00 06 00 06 00 00 "
		
	strings :
		$a_81_0 = {47 72 65 6d 61 20 4b 61 72 67 6f } 		$a_81_1 = {61 64 6d 69 6e 40 67 72 65 6d 61 6f 6e 6c 69 6e 65 2e 72 75 } 		$a_81_2 = {72 65 77 67 71 72 77 67 2e 70 64 62 } 		$a_81_3 = {6d 4a 5f 6b 34 58 6a } 		$a_81_4 = {5a 48 59 36 79 } 		$a_81_5 = {32 48 2b 37 7a 2a 55 31 } 	condition:
		((#a_81_0  & 1)*1+(#a_81_1  & 1)*1+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1+(#a_81_5  & 1)*1) >=6
 
}

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

65896af4-c98d-4fae-95a5-6848b14880f8

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