DefenderYara/TrojanDownloader/O97M/Obfuse/TrojanDownloader_O97M_Obfus...

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rule TrojanDownloader_O97M_Obfuse_SKR_MTB{
meta:
description = "TrojanDownloader:O97M/Obfuse.SKR!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00 "
strings :
$a_03_0 = {53 68 65 6c 6c 20 22 22 22 22 20 2b 20 22 6d 73 22 20 2b 20 22 68 74 61 22 22 22 22 68 74 74 70 73 3a 5c 5c 25 34 30 25 34 30 40 6a 2e 6d 70 5c [0-14] 22 22 22 } //1
$a_01_1 = {53 75 62 20 63 61 6c 63 75 6c 61 74 6f 72 28 29 } //1 Sub calculator()
condition:
((#a_03_0 & 1)*1+(#a_01_1 & 1)*1) >=2
}
rule TrojanDownloader_O97M_Obfuse_SKR_MTB_2{
meta:
description = "TrojanDownloader:O97M/Obfuse.SKR!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,02 00 02 00 02 00 00 "
strings :
$a_03_0 = {53 68 65 6c 6c 20 22 22 22 22 20 2b 20 22 6d 73 22 20 2b 20 22 68 74 61 22 22 22 22 22 20 2b 20 22 68 74 74 70 73 3a 5c 5c 25 34 30 25 34 30 40 6a 2e 6d 70 5c [0-14] 22 22 22 } //1
$a_01_1 = {53 75 62 20 41 75 74 6f 5f 43 6c 6f 73 65 28 29 } //1 Sub Auto_Close()
condition:
((#a_03_0 & 1)*1+(#a_01_1 & 1)*1) >=2
}