15 lines
1.3 KiB
Plaintext
15 lines
1.3 KiB
Plaintext
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rule TrojanDownloader_O97M_Emotet_SAW_MTB{
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meta:
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description = "TrojanDownloader:O97M/Emotet.SAW!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
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strings :
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$a_01_0 = {20 3d 20 22 78 20 5b 20 73 68 20 62 72 6f 78 20 5b 20 73 68 20 62 78 20 5b 20 73 68 20 62 63 65 78 20 5b 20 73 68 20 62 73 78 20 5b 20 73 68 20 62 73 78 20 5b 20 73 68 20 62 78 20 5b 20 73 68 20 62 22 } //1 = "x [ sh brox [ sh bx [ sh bcex [ sh bsx [ sh bsx [ sh bx [ sh b"
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$a_01_1 = {20 3d 20 22 78 20 5b 20 73 68 20 62 3a 77 78 20 5b 20 73 68 20 62 78 20 5b 20 73 68 20 62 69 6e 78 20 5b 20 73 68 20 62 33 78 20 5b 20 73 68 20 62 32 78 20 5b 20 73 68 20 62 5f 78 20 5b 20 73 68 20 62 22 } //1 = "x [ sh b:wx [ sh bx [ sh binx [ sh b3x [ sh b2x [ sh b_x [ sh b"
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$a_01_2 = {20 3d 20 22 77 78 20 5b 20 73 68 20 62 69 6e 78 20 5b 20 73 68 20 62 6d 78 20 5b 20 73 68 20 62 67 6d 78 20 5b 20 73 68 20 62 74 78 20 5b 20 73 68 20 62 78 20 5b 20 73 68 20 62 22 } //1 = "wx [ sh binx [ sh bmx [ sh bgmx [ sh btx [ sh bx [ sh b"
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$a_03_3 = {20 3d 20 52 65 70 6c 61 63 65 28 [0-25] 2c 20 22 78 20 5b 20 73 68 20 62 22 2c 20 [0-25] 29 } //1
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$a_03_4 = {2e 43 72 65 61 74 65 20 [0-20] 2c 20 [0-20] 2c } //1
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condition:
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((#a_01_0 & 1)*1+(#a_01_1 & 1)*1+(#a_01_2 & 1)*1+(#a_03_3 & 1)*1+(#a_03_4 & 1)*1) >=5
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} |