Ransom_Win32_Cerber_J_2

YARA detection rule by roadwy

Ransom:Win32/Cerber.J,SIGNATURE_TYPE_PEHSTR_EXT,0a 00 0a 00 1a 00 00

rule Ransom_Win32_Cerber_J_2{
	meta:
		description = "Ransom:Win32/Cerber.J,SIGNATURE_TYPE_PEHSTR_EXT,0a 00 0a 00 1a 00 00 "
		
	strings :
		$a_80_0 = {43 45 52 42 45 52 20 52 41 4e 53 4f 4d 57 41 52 45 } 		$a_80_1 = {28 2a 5f 52 45 41 44 5f 54 48 49 53 5f 46 49 4c 45 5f 2a 29 } 		$a_80_2 = {7b 49 53 5f 41 44 4d 49 4e 7d } 		$a_80_3 = {7b 50 41 52 54 4e 45 52 5f 49 44 7d } 		$a_80_4 = {7b 53 54 4f 50 5f 52 45 41 53 4f 4e 7d } 		$a_80_5 = {7b 43 4f 55 4e 54 5f 46 49 4c 45 53 7d } 		$a_80_6 = {72 73 61 5f 6b 65 79 5f 73 69 7a 65 } 		$a_80_7 = {6d 69 6e 5f 66 69 6c 65 5f 73 69 7a 65 } 		$a_80_8 = {74 68 72 65 61 64 73 5f 70 65 72 5f 63 6f 72 65 } 		$a_80_9 = {25 30 32 58 25 30 32 58 25 30 32 58 25 30 32 58 25 30 32 58 25 30 32 58 } 		$a_80_10 = {53 65 6e 64 69 6e 67 20 73 74 61 74 20 25 73 2c 20 25 73 } 		$a_80_11 = {59 4f 55 52 20 44 4f 43 55 4d 45 4e 54 53 2c 20 50 48 4f 54 4f 53 2c 20 44 41 54 41 42 41 53 45 53 20 41 4e 44 20 4f 54 48 45 52 20 49 4d 50 4f 52 54 41 4e 54 20 46 49 4c 45 53 20 48 41 56 45 20 42 45 45 4e 20 45 4e 43 52 59 50 54 45 44 21 } 		$a_80_12 = {75 72 6c 28 27 64 61 74 61 3a 69 6d 61 67 65 2f 67 69 66 3b 62 61 73 65 36 34 2c 52 30 6c 47 4f 44 } 		$a_80_13 = {3c 68 31 3e 43 26 23 30 36 39 3b 26 23 38 32 3b 42 45 26 23 38 32 3b 20 26 23 38 32 3b 41 4e 53 4f 4d 57 41 26 23 38 32 3b 26 23 30 36 39 3b 3c 2f 68 31 3e } 		$a_80_14 = {28 62 6c 61 63 6b 4c 69 73 74 2e 69 6e 64 65 78 4f 66 28 6d 61 63 41 64 64 72 65 73 73 29 } 		$a_80_15 = {75 70 64 55 72 6c 28 22 65 6e 22 29 3b } 		$a_80_16 = {50 48 52 70 64 47 78 6c 50 6b 4d 6d 49 7a 41 32 4f 54 73 6d 49 7a 67 79 4f 30 4a 46 4a 69 4d 34 4d 67 } 		$a_80_17 = {73 65 72 76 65 72 31 30 28 61 64 64 72 65 73 73 2c 20 63 61 6c 6c 62 61 63 6b 29 } 		$a_80_18 = {73 65 72 76 65 72 32 30 28 61 64 64 72 65 73 73 2c 20 63 61 6c 6c 62 61 63 6b 29 } 		$a_80_19 = {73 65 72 76 65 72 33 30 28 61 64 64 72 65 73 73 2c 20 63 61 6c 6c 62 61 63 6b 29 } 		$a_80_20 = {73 65 72 76 65 72 34 30 28 61 64 64 72 65 73 73 2c 20 63 61 6c 6c 62 61 63 6b 29 } 		$a_80_21 = {63 68 61 6e 67 65 4c 61 6e 67 75 61 67 65 31 28 29 } 		$a_80_22 = {63 68 61 6e 67 65 55 72 6c 5f 28 61 64 64 72 65 73 73 29 } 		$a_80_23 = {75 70 64 55 72 6c 28 6c 61 6e 67 75 61 67 65 29 } 		$a_80_24 = {73 68 6f 77 42 6c 6f 63 6b 28 6c 61 6e 67 75 61 67 65 29 } 		$a_80_25 = {28 22 65 6e 2c 20 61 72 2c 20 7a 68 2c 20 6e 6c 2c 20 66 72 2c 20 64 65 2c 20 69 74 2c 20 6a 61 2c 20 6b 6f 2c 20 70 6c 2c 20 70 74 2c 20 65 73 2c 20 74 72 22 2e 69 6e 64 65 78 4f 66 28 6e 61 76 5f 6c 61 6e 67 29 } 	condition:
		((#a_80_0  & 1)*1+(#a_80_1  & 1)*1+(#a_80_2  & 1)*1+(#a_80_3  & 1)*1+(#a_80_4  & 1)*1+(#a_80_5  & 1)*1+(#a_80_6  & 1)*1+(#a_80_7  & 1)*1+(#a_80_8  & 1)*1+(#a_80_9  & 1)*1+(#a_80_10  & 1)*1+(#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)*1+(#a_80_20  & 1)*1+(#a_80_21  & 1)*1+(#a_80_22  & 1)*1+(#a_80_23  & 1)*1+(#a_80_24  & 1)*1+(#a_80_25  & 1)*1) >=10
 
}

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

6a1cffc3-37d5-4a12-9d3b-9f57f2c919ae

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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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