Trojan_Win64_ChocoFrag_A_dha

YARA detection rule by roadwy

Trojan:Win64/ChocoFrag.A!dha,SIGNATURE_TYPE_PEHSTR_EXT,17 00 17 00 10 00 00

rule Trojan_Win64_ChocoFrag_A_dha{
	meta:
		description = "Trojan:Win64/ChocoFrag.A!dha,SIGNATURE_TYPE_PEHSTR_EXT,17 00 17 00 10 00 00 "
		
	strings :
		$a_03_0 = {48 83 ec 28 66 c7 [0-03] 48 b8 } 		$a_03_1 = {48 81 fa 00 10 00 00 72 15 48 83 c2 27 ?? ?? ?? ?? ?? ?? ?? 48 83 c0 f8 48 83 f8 1f } 		$a_01_2 = {53 65 72 76 69 63 65 4d 61 69 6e } 		$a_01_3 = {6f 70 65 6e 20 66 61 69 6c } 		$a_01_4 = {69 6e 73 74 61 6c 6c 20 6f 6b 20 2d 3e 20 25 64 } 		$a_01_5 = {70 72 6f 63 20 66 61 69 6c } 		$a_01_6 = {72 65 61 64 20 63 6f 6e 66 69 67 20 66 61 69 6c } 		$a_01_7 = {72 65 61 64 20 63 6f 6e 66 69 67 20 6f 6b } 		$a_01_8 = {6f 70 65 6e 20 66 6c 61 73 68 20 66 61 69 6c } 		$a_01_9 = {6f 70 65 6e 20 66 6c 61 73 68 20 6f 6b } 		$a_01_10 = {69 64 20 25 64 } 		$a_01_11 = {6d 61 69 6e 2e 64 6c 6c } 		$a_01_12 = {66 6c 61 73 68 2e 64 61 74 } 		$a_00_13 = {43 3a 5c 77 69 6e 64 6f 77 73 5c 73 79 73 74 65 6d 33 32 5c 64 65 66 72 61 67 73 76 63 2e 64 6c 6c } 		$a_00_14 = {43 3a 5c 57 49 4e 44 4f 57 53 5c 53 59 53 54 45 4d 33 32 5c 77 62 65 6d 5c 57 4d 49 73 76 63 2e 64 6c 6c } 		$a_00_15 = {43 3a 5c 57 69 6e 64 6f 77 73 5c 73 79 73 74 65 6d 33 32 5c 53 44 52 53 56 43 2e 64 6c 6c } 	condition:
		((#a_03_0  & 1)*10+(#a_03_1  & 1)*10+(#a_01_2  & 1)*1+(#a_01_3  & 1)*1+(#a_01_4  & 1)*1+(#a_01_5  & 1)*1+(#a_01_6  & 1)*1+(#a_01_7  & 1)*1+(#a_01_8  & 1)*1+(#a_01_9  & 1)*1+(#a_01_10  & 1)*1+(#a_01_11  & 1)*1+(#a_01_12  & 1)*1+(#a_00_13  & 1)*2+(#a_00_14  & 1)*2+(#a_00_15  & 1)*2) >=23
 
}

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

c29b1f76-1cb0-4892-8a9b-5acc63ff32d0

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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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