Trojan_Win32_BirRat_MK_MTB

YARA detection rule by roadwy

Trojan:Win32/BirRat.MK!MTB,SIGNATURE_TYPE_PEHSTR_EXT,0d 00 0d 00 10 00 00

rule Trojan_Win32_BirRat_MK_MTB{
	meta:
		description = "Trojan:Win32/BirRat.MK!MTB,SIGNATURE_TYPE_PEHSTR_EXT,0d 00 0d 00 10 00 00 "
		
	strings :
		$a_81_0 = {2d 2d 2d 2d 2d 42 45 47 49 4e 20 50 55 42 4c 49 43 20 4b 45 59 2d 2d 2d 2d 2d } 		$a_81_1 = {2d 2d 2d 2d 2d 45 4e 44 20 50 55 42 4c 49 43 20 4b 45 59 2d 2d 2d 2d 2d } 		$a_81_2 = {45 73 74 61 62 6c 69 73 68 20 48 54 54 50 20 70 72 6f 78 79 20 74 75 6e 6e 65 6c 20 74 6f 20 25 73 3a 25 68 } 		$a_81_3 = {4b 65 72 62 65 72 6f 73 } 		$a_81_4 = {64 65 63 72 79 70 74 20 70 61 73 73 77 6f 72 64 } 		$a_81_5 = {43 6f 6d 70 72 6f 6d 69 73 65 } 		$a_81_6 = {73 65 73 73 69 6f 6e 5f 69 64 } 		$a_81_7 = {6d 61 73 74 65 72 5f 6b 65 79 } 		$a_81_8 = {6b 65 79 5f 61 72 67 } 		$a_81_9 = {42 6f 74 20 49 44 3a } 		$a_81_10 = {55 73 65 72 3a } 		$a_81_11 = {53 6f 66 74 77 61 72 65 5c 53 79 73 69 6e 74 65 72 6e 61 6c 73 5c 41 75 74 6f 52 75 6e 73 } 		$a_81_12 = {52 4f 4f 54 5c 43 49 4d 56 32 } 		$a_81_13 = {78 6d 72 6d 69 6e 65 } 		$a_81_14 = {78 6d 72 36 34 5f 6d 69 6e 65 5f 73 74 61 72 74 } 		$a_81_15 = {43 6c 69 70 62 6f 61 72 64 3a } 	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+(#a_81_6  & 1)*1+(#a_81_7  & 1)*1+(#a_81_8  & 1)*1+(#a_81_9  & 1)*1+(#a_81_10  & 1)*1+(#a_81_11  & 1)*1+(#a_81_12  & 1)*1+(#a_81_13  & 1)*1+(#a_81_14  & 1)*1+(#a_81_15  & 1)*1) >=13
 
}

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

4f95b814-18d0-468c-9c44-5a25581b7a0b

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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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