rule TrojanDownloader_Win32_Wysotot_B{ meta: description = "TrojanDownloader:Win32/Wysotot.B,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00 " strings : $a_01_0 = {74 0c 66 83 38 2d 74 12 83 c0 02 49 75 f4 5f 5b 83 c8 ff } //1 $a_81_1 = {2f 65 47 64 70 53 76 63 2e 65 78 65 } //1 /eGdpSvc.exe $a_01_2 = {2d 00 75 00 72 00 6c 00 20 00 22 00 25 00 73 00 22 00 20 00 2d 00 66 00 20 00 22 00 25 00 73 00 22 00 20 00 2d 00 65 00 78 00 65 00 20 00 22 00 25 00 73 00 22 00 20 00 2d 00 68 00 69 00 64 00 65 00 20 00 2d 00 75 00 69 00 64 00 20 00 25 00 64 00 } //1 -url "%s" -f "%s" -exe "%s" -hide -uid %d condition: ((#a_01_0 & 1)*1+(#a_81_1 & 1)*1+(#a_01_2 & 1)*1) >=3 }