rule Backdoor_Win32_Zegost_DG{ meta: description = "Backdoor:Win32/Zegost.DG,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00 " strings : $a_01_0 = {54 4b 5f 75 73 65 72 47 68 6f 61 6b 00 } //1 $a_01_1 = {8b 4d 08 8a 11 32 55 fc 8b 45 08 88 10 8b 4d 08 8a 11 02 55 fc 8b 45 08 88 10 8b 4d 08 83 c1 01 } //1 $a_03_2 = {83 ec 0c c6 45 ?? 44 c6 45 ?? 6c c6 45 ?? 6c c6 45 ?? 41 c6 45 ?? 75 c6 45 ?? 64 c6 45 ?? 69 c6 45 ?? 6f c6 45 ?? 00 } //1 condition: ((#a_01_0 & 1)*1+(#a_01_1 & 1)*1+(#a_03_2 & 1)*1) >=3 }