Trojan_BAT_CryptTrickldr_A_MTB

YARA detection rule by roadwy

Trojan:BAT/CryptTrickldr.A!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Trojan_BAT_CryptTrickldr_A_MTB{
	meta:
		description = "Trojan:BAT/CryptTrickldr.A!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_03_0 = {24 73 65 72 3d 24 28 5b 54 45 58 54 2e 45 6e 63 4f 44 69 6e 67 5d 3a 3a 55 4e 49 63 6f 64 65 2e 47 45 54 53 74 52 69 4e 47 28 5b 43 6f 6e 76 45 52 74 5d 3a 3a 46 72 4f 6d 42 61 53 45 36 34 53 54 52 49 4e 67 28 27 61 41 42 30 41 48 51 41 63 41 41 36 41 43 38 41 4c 77 [0-30] 27 29 29 29 3b 24 74 3d 27 2f 61 64 6d 69 6e 2f 67 65 74 2e 70 68 70 27 3b } 		$a_03_1 = {24 4b 3d 5b 53 59 53 74 65 4d 2e 54 65 58 74 2e 45 6e 43 4f 64 69 6e 47 5d 3a 3a 41 53 43 49 49 2e 47 65 54 42 59 54 65 73 28 27 [0-30] 27 29 3b 24 52 3d 7b 24 44 2c 24 4b 3d 24 41 72 67 73 3b 24 53 3d 30 2e 2e 32 35 35 3b 30 2e 2e 32 35 35 7c 25 7b 24 4a 3d 28 24 4a 2b 24 53 5b 24 5f 5d 2b 24 4b 5b 24 5f 25 24 4b 2e 43 6f 55 6e 54 5d 29 25 32 35 36 3b } 		$a_81_2 = {24 53 5b 24 5f 5d 2c 24 53 5b 24 4a 5d 3d 24 53 5b 24 4a 5d 2c 24 53 5b 24 5f 5d 7d 3b 24 44 7c 25 7b 24 49 3d 28 24 49 2b 31 29 25 32 35 36 3b 24 48 3d 28 24 48 2b 24 53 5b 24 49 5d 29 25 32 35 36 3b 24 53 5b 24 49 5d 2c } 		$a_81_3 = {24 53 5b 24 48 5d 3d 24 53 5b 24 48 5d 2c 24 53 5b 24 49 5d 3b 24 5f 2d 62 78 4f 72 24 53 5b 28 24 53 5b 24 49 5d 2b 24 53 5b 24 48 5d 29 25 32 35 36 5d 7d 7d 3b } 		$a_03_4 = {24 44 61 54 61 3d 24 [0-10] 2e 44 6f 77 6e 6c 6f 41 64 44 61 54 41 28 24 53 45 72 2b 24 74 29 3b } 	condition:
		((#a_03_0  & 1)*1+(#a_03_1  & 1)*1+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_03_4  & 1)*1) >=5
 
}

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

c35c0451-3922-49a6-8cc7-854622af5f69

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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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