rule Backdoor_BAT_Hamaetot_A{ meta: description = "Backdoor:BAT/Hamaetot.A,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 06 00 00 01 00 " strings : $a_01_0 = {73 00 74 00 61 00 72 00 74 00 6b 00 6c 00 } //01 00 startkl $a_01_1 = {6c 00 64 00 6f 00 73 00 } //01 00 ldos $a_01_2 = {64 00 6f 00 77 00 6e 00 6c 00 6f 00 61 00 64 00 65 00 78 00 65 00 } //01 00 downloadexe $a_01_3 = {26 00 72 00 65 00 63 00 65 00 69 00 76 00 65 00 3d 00 75 00 70 00 6c 00 6f 00 61 00 64 00 26 00 75 00 70 00 6c 00 6f 00 61 00 64 00 74 00 79 00 70 00 65 00 3d 00 75 00 66 00 69 00 6c 00 65 00 26 00 66 00 69 00 6c 00 65 00 6e 00 61 00 6d 00 65 00 3d 00 } //01 00 &receive=upload&uploadtype=ufile&filename= $a_01_4 = {26 00 72 00 65 00 63 00 65 00 69 00 76 00 65 00 3d 00 75 00 70 00 6c 00 6f 00 61 00 64 00 26 00 75 00 70 00 6c 00 6f 00 61 00 64 00 74 00 79 00 70 00 65 00 3d 00 73 00 63 00 72 00 65 00 65 00 6e 00 26 00 66 00 69 00 6c 00 65 00 6e 00 61 00 6d 00 65 00 3d 00 73 00 63 00 72 00 65 00 65 00 6e 00 2e 00 70 00 6e 00 67 00 } //01 00 &receive=upload&uploadtype=screen&filename=screen.png $a_01_5 = {26 00 72 00 65 00 63 00 65 00 69 00 76 00 65 00 3d 00 75 00 70 00 6c 00 6f 00 61 00 64 00 26 00 75 00 70 00 6c 00 6f 00 61 00 64 00 74 00 79 00 70 00 65 00 3d 00 77 00 65 00 62 00 63 00 61 00 6d 00 26 00 66 00 69 00 6c 00 65 00 6e 00 61 00 6d 00 65 00 3d 00 77 00 65 00 62 00 63 00 61 00 6d 00 2e 00 6a 00 70 00 67 00 } //00 00 &receive=upload&uploadtype=webcam&filename=webcam.jpg $a_00_6 = {87 10 00 } //00 cd condition: any of ($a_*) }