Trojan_Win32_Meralifea_A_7

YARA detection rule by roadwy

Trojan:Win32/Meralifea.A,SIGNATURE_TYPE_PEHSTR_EXT,0a 00 0a 00 16 00 00

rule Trojan_Win32_Meralifea_A_7{
	meta:
		description = "Trojan:Win32/Meralifea.A,SIGNATURE_TYPE_PEHSTR_EXT,0a 00 0a 00 16 00 00 "
		
	strings :
		$a_03_0 = {68 30 00 22 00 ff 33 ff 15 ?? ?? ?? ?? 85 c0 74 ?? ff 75 ?? ff 15 ?? ?? ?? ?? 68 10 27 00 00 ff 75 ?? ff 15 ?? ?? ?? ?? 85 c0 75 1d 8d 45 0c 50 ff 75 ?? ff 15 ?? ?? ?? ?? 81 7d 0c dd cc bb aa } 		$a_03_1 = {68 00 00 07 00 50 c7 46 1c 00 00 10 00 ff d7 85 c0 74 06 8b 45 ?? 89 46 24 8d 45 fc 53 50 8d 45 f4 6a 08 50 53 53 68 5c 40 07 00 ff 36 ff d7 } 		$a_01_2 = {68 20 00 22 00 ff 36 ff d7 85 c0 75 03 89 5d f8 81 7d f8 be ba fe ca } 		$a_03_3 = {68 00 20 49 82 53 89 7d fc ff 15 ?? ?? ?? ?? 85 c0 74 0f 33 c0 81 7d fc 46 55 53 45 } 		$a_03_4 = {8b 45 10 8b 4e 24 8b 40 08 03 85 ?? ?? ff ff f7 e1 66 81 bd ?? ?? ff ff 55 aa 89 45 f0 89 55 f4 75 } 		$a_01_5 = {81 c7 00 00 20 00 83 d2 00 3b d0 77 24 72 04 3b f9 77 1e 8b 7d 10 81 e9 00 00 10 00 } 		$a_03_6 = {66 81 b8 fe 01 00 00 55 aa 75 74 32 c9 33 d2 05 ca 01 00 00 83 78 fc 00 74 12 83 38 00 74 0d 8a 48 f8 46 42 83 c0 10 83 fa 04 72 ?? 83 fe 01 75 ?? 80 f9 ee } 		$a_03_7 = {ff 50 04 8b f0 83 c4 10 85 f6 74 ?? 8b 46 04 53 8d 0c 40 8d 0c 8d 08 00 00 00 3b 4d 08 73 ?? 66 81 3e 38 9a } 		$a_03_8 = {8b 75 08 57 80 7e 21 be 0f 85 ?? ?? 00 00 80 7e 02 08 0f 85 fb 00 00 00 66 81 7e 06 00 04 0f 83 ef 00 00 00 8b 7d 0c 83 ff 2d } 		$a_01_9 = {74 14 80 3e ef 75 0f 80 7e 01 bb 75 09 80 7e 02 bf } 		$a_80_10 = {2f 61 72 6b 73 69 67 2e 6a 73 } 		$a_80_11 = {2f 62 69 6e 2f 69 33 38 36 2f 64 75 6d 70 2e 62 69 6e } 		$a_80_12 = {2f 62 69 6e 2f 69 33 38 36 2f 6b 65 72 6e 65 6c 2e 62 69 6e } 		$a_80_13 = {2f 62 69 6e 2f 69 33 38 36 2f 6b 65 72 6e 65 6c 2e 73 69 67 } 		$a_80_14 = {2f 62 6f 6f 74 2f 62 6f 6f 74 2e 63 66 67 } 		$a_80_15 = {2f 62 6f 6f 74 2f 6b 65 72 6e 65 6c } 		$a_80_16 = {2f 65 74 63 2f 63 72 79 70 74 6f 2e 6b 65 79 } 		$a_80_17 = {2f 65 74 63 2f 6f 72 69 67 69 6e 61 6c 2e 64 61 74 } 		$a_80_18 = {2f 73 65 74 75 70 2e 69 6d 67 } 		$a_80_19 = {2f 73 69 6d 70 6c 69 66 69 65 64 2e 70 61 74 63 68 } 		$a_80_20 = {5c 5c 2e 5c 55 73 62 67 4b 72 6e 6c } 		$a_80_21 = {45 46 49 20 50 41 52 54 } 	condition:
		((#a_03_0  & 1)*2+(#a_03_1  & 1)*2+(#a_01_2  & 1)*2+(#a_03_3  & 1)*3+(#a_03_4  & 1)*2+(#a_01_5  & 1)*1+(#a_03_6  & 1)*3+(#a_03_7  & 1)*2+(#a_03_8  & 1)*2+(#a_01_9  & 1)*2+(#a_80_10  & 1)*2+(#a_80_11  & 1)*1+(#a_80_12  & 1)*1+(#a_80_13  & 1)*1+(#a_80_14  & 1)*1+(#a_80_15  & 1)*1+(#a_80_16  & 1)*1+(#a_80_17  & 1)*1+(#a_80_18  & 1)*1+(#a_80_19  & 1)*2+(#a_80_20  & 1)*1+(#a_80_21  & 1)*1) >=10
 
}

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

d9049c1f-24a9-4d8a-92a5-ade8e1099a9c

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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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