rule HackTool_MacOS_Chisel_B_MTB{ meta: description = "HackTool:MacOS/Chisel.B!MTB,SIGNATURE_TYPE_MACHOHSTR_EXT,04 00 04 00 04 00 00 " strings : $a_01_0 = {43 48 49 53 45 4c 5f 43 4f 4e 4e 45 43 54 } //1 CHISEL_CONNECT $a_01_1 = {73 65 6e 64 63 68 69 73 65 6c } //1 sendchisel $a_01_2 = {63 68 69 73 65 6c 2e 70 69 64 } //1 chisel.pid $a_01_3 = {63 68 69 73 65 6c 63 6c 69 65 6e 74 63 6c 6f 73 65 64 } //1 chiselclientclosed condition: ((#a_01_0 & 1)*1+(#a_01_1 & 1)*1+(#a_01_2 & 1)*1+(#a_01_3 & 1)*1) >=4 }