rule HackTool_Linux_SuspUnixReShellCmd_C{ meta: description = "HackTool:Linux/SuspUnixReShellCmd.C,SIGNATURE_TYPE_CMDHSTR_EXT,0f 00 0f 00 06 00 00 " strings : $a_02_0 = {61 00 77 00 6b 00 20 00 42 00 45 00 47 00 49 00 4e 00 [0-02] 7b 00 } //10 $a_00_1 = {2f 00 69 00 6e 00 65 00 74 00 2f 00 74 00 63 00 70 00 2f 00 30 00 2f 00 } //5 /inet/tcp/0/ $a_00_2 = {2f 00 69 00 6e 00 65 00 74 00 2f 00 75 00 64 00 70 00 2f 00 30 00 2f 00 } //5 /inet/udp/0/ $a_00_3 = {31 00 32 00 37 00 2e 00 30 00 2e 00 30 00 2e 00 31 00 } //-50 127.0.0.1 $a_00_4 = {6c 00 6f 00 63 00 61 00 6c 00 68 00 6f 00 73 00 74 00 } //-50 localhost $a_00_5 = {30 00 2e 00 30 00 2e 00 30 00 2e 00 30 00 } //-50 0.0.0.0 condition: ((#a_02_0 & 1)*10+(#a_00_1 & 1)*5+(#a_00_2 & 1)*5+(#a_00_3 & 1)*-50+(#a_00_4 & 1)*-50+(#a_00_5 & 1)*-50) >=15 }