Trojan_Win64_BadJoke_GPB_MTB

YARA detection rule by roadwy

Trojan:Win64/BadJoke.GPB!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Trojan_Win64_BadJoke_GPB_MTB{
	meta:
		description = "Trojan:Win64/BadJoke.GPB!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_81_0 = {5f 63 6c 65 61 6e 75 70 25 64 } 		$a_81_1 = {72 75 6e 64 6c 6c 33 32 2e 65 78 65 20 25 73 2c 49 6e 73 74 61 6c 6c 48 69 6e 66 53 65 63 74 69 6f 6e 20 25 73 20 31 32 38 20 25 73 } 		$a_81_2 = {43 6f 6d 6d 61 6e 64 2e 63 6f 6d 20 2f 63 20 25 73 } 		$a_81_3 = {53 6f 66 74 77 61 72 65 5c 4d 69 63 72 6f 73 6f 66 74 5c 57 69 6e 64 6f 77 73 5c 43 75 72 72 65 6e 74 56 65 72 73 69 6f 6e 5c 52 75 6e 4f 6e 63 65 } 		$a_81_4 = {63 6d 64 20 2f 63 20 22 64 61 6e 67 65 72 6f 75 73 2e 62 61 74 22 } 	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 ]]

055c82e4-e3a1-423c-87f7-fa7717247445

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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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