rule Spammer_Win32_Mohtersend_A{ meta: description = "Spammer:Win32/Mohtersend.A,SIGNATURE_TYPE_PEHSTR,04 00 04 00 04 00 00 01 00 " strings : $a_01_0 = {4d 6f 74 6f 72 53 65 6e 64 53 70 61 6d } //01 00 MotorSendSpam $a_01_1 = {45 78 65 63 75 74 61 4d 6f 74 6f 72 53 65 6e 64 53 70 61 6d 53 68 65 6c 6c } //01 00 ExecutaMotorSendSpamShell $a_01_2 = {45 78 65 63 4d 65 74 68 6f 64 } //01 00 ExecMethod $a_01_3 = {54 58 4d 61 69 6c 53 68 65 6c 6c } //00 00 TXMailShell condition: any of ($a_*) }