Trojan_Win32_Stealer_NKC_MTB

YARA detection rule by roadwy

Trojan:Win32/Stealer.NKC!MTB,SIGNATURE_TYPE_PEHSTR_EXT,09 00 09 00 08 00 00

rule Trojan_Win32_Stealer_NKC_MTB{
	meta:
		description = "Trojan:Win32/Stealer.NKC!MTB,SIGNATURE_TYPE_PEHSTR_EXT,09 00 09 00 08 00 00 "
		
	strings :
		$a_81_0 = {44 6f 20 79 6f 75 20 77 61 6e 74 20 74 6f 20 72 75 6e 20 61 20 6d 61 6c 77 61 72 65 } 		$a_81_1 = {46 5f 6b 2e 51 5f 59 2e 4f 20 53 2e 7a 5f 74 5f 75 5f 6e 2e 37 44 20 7a 20 58 6a 2e 68 2e 78 20 6b 3c 5f 58 5f 6a 20 66 4a 20 4f 2e 4c 20 42 3f 2e 78 2e 50 2e 66 5f 64 29 43 5f 6a 45 2e 73 37 } 		$a_81_2 = {48 20 6b 32 2e 6c 46 5f 69 37 6f 2e 75 5f 64 20 48 2e 63 2e 6d 20 75 2e 53 2e 52 5f 43 2e 6b 5f 74 20 51 2e 68 4d 2e 69 65 } 		$a_81_3 = {38 2e 31 2e 41 2e 38 2e 70 20 42 5f 4d 5f 57 2e 37 78 20 44 61 5f 6c 5f 53 2e 7a 2e 34 6e 20 4b 2e 38 2e 4e 20 4b 2c 62 5f 50 2e 56 2e 76 68 61 5f 56 20 63 33 20 4b 6d 20 6b 34 5f 75 33 4e 2e 4b 20 78 2e 34 2e 4f 5f 6a 2e 6f 20 6f 39 20 45 5f 6e 2e 79 20 59 2e 73 5f 65 2e 58 77 } 		$a_81_4 = {4f 49 76 5f 61 2e 4f 5f 50 3a 6d 2e 48 5f 49 33 75 2e 52 28 73 20 43 54 5f 79 4d 20 71 20 4b 5f 69 4f 4d 20 51 20 72 68 2e 42 20 4a 76 2e 6e 20 44 20 46 33 20 6c 2b 20 6a 2e 4c 5f 48 } 		$a_81_5 = {59 20 55 2e 72 5f 69 20 63 56 68 2e 56 5a 5f 42 20 59 20 70 5f 68 2e 33 6e 2e 77 20 52 67 2e 65 5f 48 } 		$a_81_6 = {7a 20 75 5f 54 5f 6a 20 6f 5f 52 7c 20 4c 4b 70 20 62 2d 20 5a 5f 64 45 20 74 20 56 5f 6d 78 2e 61 63 3a 20 49 2e 38 63 2b 2e 61 4d 2e 4b 2e 38 62 20 41 32 5f 79 20 6c 40 20 50 20 4d 2e 39 21 6f 2e 6e } 		$a_81_7 = {44 20 70 20 43 5c 2e 72 2e 4a 73 2e 44 36 2e 47 20 57 76 2e 32 75 2e 52 2e 54 2b 2e 42 52 5f 63 4d 20 48 2e 57 2e 54 26 58 2e 47 2e 52 20 75 76 7a 2e 75 78 5f 79 20 46 5f 71 20 44 } 	condition:
		((#a_81_0  & 1)*1+(#a_81_1  & 1)*2+(#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) >=9
 
}

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

9b918b23-450b-4659-b550-ce1c3e837e7c

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