Trojan_Win32_GuLoader_RBF_MTB

YARA detection rule by roadwy

Trojan:Win32/GuLoader.RBF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Trojan_Win32_GuLoader_RBF_MTB{
	meta:
		description = "Trojan:Win32/GuLoader.RBF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_81_0 = {46 6f 72 63 65 70 73 5c 72 65 73 74 69 67 6d 61 74 69 73 65 73 5c 54 6f 72 72 65 6e 63 65 } 		$a_81_1 = {5c 44 65 6c 65 67 65 72 65 74 73 31 34 34 5c 64 61 6d 70 6e 69 6e 67 65 72 6e 65 2e 6b 69 6c } 		$a_81_2 = {5c 65 6e 74 65 72 6f 72 72 68 65 61 5c 6f 75 74 74 61 6b 65 2e 75 70 66 } 		$a_81_3 = {25 74 79 70 65 62 65 74 65 67 6e 65 6c 73 65 72 73 25 5c 63 68 6c 6f 72 69 6e 61 74 6f 72 5c 66 6f 67 65 64 72 65 74 74 65 72 6e 65 } 		$a_81_4 = {6b 75 6e 73 74 67 64 6e 69 6e 67 65 72 73 20 6f 72 6b 65 73 74 65 72 67 72 61 76 65 6e 2e 65 78 65 } 	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) >=5
 
}

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

66859ad1-8a56-4f1a-8715-d9ba2dd7dc32

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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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