DefenderYara/TrojanDownloader/O97M/Cridex/TrojanDownloader_O97M_Cride...

15 lines
772 B
Plaintext

rule TrojanDownloader_O97M_Cridex_DHB_MTB{
meta:
description = "TrojanDownloader:O97M/Cridex.DHB!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 01 00 "
strings :
$a_03_0 = {22 53 68 65 6c 6c 45 78 65 63 75 74 65 41 22 20 28 42 79 56 61 6c 20 90 02 30 20 41 73 20 4c 6f 6e 67 2c 20 42 79 56 61 6c 20 90 02 30 20 41 73 20 53 74 72 69 6e 67 2c 20 5f 90 00 } //01 00
$a_81_1 = {22 55 52 4c 44 6f 77 6e 6c 6f 61 64 54 6f 46 69 6c 65 41 22 20 28 42 79 56 61 6c 20 } //01 00
$a_81_2 = {3d 20 45 6e 76 69 72 6f 6e } //01 00
$a_81_3 = {41 70 70 44 61 74 61 20 3d 20 41 70 70 44 61 74 61 20 26 20 43 68 72 28 41 73 63 28 78 29 20 2d 20 31 29 } //01 00
$a_81_4 = {3d 20 22 66 61 64 7a 6a 67 64 69 6c 61 7a 75 22 } //00 00
condition:
any of ($a_*)
}