rule TrojanDownloader_O97M_TrickBot_PTA_MTB{ meta: description = "TrojanDownloader:O97M/TrickBot.PTA!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 " strings : $a_00_0 = {45 68 50 77 54 37 72 47 4b 2e 45 78 65 63 } //1 EhPwT7rGK.Exec $a_00_1 = {70 55 75 53 65 4c 4f 70 6b 20 28 22 63 3a 5c 55 54 46 38 4e 6f 42 4f 4d 22 29 } //1 pUuSeLOpk ("c:\UTF8NoBOM") $a_00_2 = {72 69 79 75 6f 79 75 6f 2e 43 6c 6f 73 65 } //1 riyuoyuo.Close $a_00_3 = {4d 6b 44 69 72 20 6e 66 67 66 6d 67 68 79 6b 74 72 6c } //1 MkDir nfgfmghyktrl $a_00_4 = {66 67 68 66 6a 66 67 6a 72 6b 72 6b 2e 43 72 65 61 74 65 54 65 78 74 46 69 6c 65 28 } //1 fghfjfgjrkrk.CreateTextFile( condition: ((#a_00_0 & 1)*1+(#a_00_1 & 1)*1+(#a_00_2 & 1)*1+(#a_00_3 & 1)*1+(#a_00_4 & 1)*1) >=5 }