Skip to content

Private Scanner

Netlas Private Scanner is designed to perform non-intrusive scans of any target. Scanning is done on demand and is incredibly fast, making the Netlas Private Scanner the ideal solution for passive scanning of large attack surfaces.

To access the Private Scanner, click on the Scan menu item.

Netlas Private Scanner Netlas Private Scanner

Creating Scans

With the Private Scanner, you can scan either an arbitrary list of targets or a previously created attack surface:

  • To scan a list of targets, click the New Scan button and paste the list.
  • Press the Scan Attack Surface button to schedule a scan of a previously created attack surface. You can also create a scan directly while using the Discovery Tool by pressing the Scan button in the bottom left corner.

Scan Attack Surface Scan Attack Surface

Supported Target Types

A valid list of targets for scanning consists of IP addresses, domains, or CIDRs, with one target per line. Here is an example of a valid list:

example.com
subdomain.example.com
1.1.1.1
1.1.1.0/24

If you select an attack surface as a target, the Private Scanner will scan all the domain names, IP addresses, CIDRs, and IP ranges of the specified surface. The list of targets will be the same as if you used the download function in the Discovery Tool.

Domain Resolving

Domains will be resolved at the moment of the scan, so you don't need to include A-records in the list of targets. For example, if you scan the single target dns.google, the scan results will include:

8.8.4.4
8.8.8.8
dns.google

Unsupported Target Types

The Netlas Private Scanner is not a specialized web application scanner. Its main goal is to detect exposed ports and, where possible, the services and apps bound to those ports. While it supports HTTP scanning, it only scans the main page and follows 301 and 302 redirects if they occur from the main page. Therefore, you cannot specify a URL as a scan target (e.g., https://example.com/).

Wildcard characters such as * and ? are also not supported. If you want to scan a list of subdomains, use the DNS Search Tool or the Discovery Tool to create a list.

Private Scanner Modes

Behind the scenes, Netlas Private Scanner uses the same fast scanners that Netlas uses for internet scanning, but it is configured to cover a much wider range of ports. You can run the scanner in two modes:

  • Top Ports: scans a predefined list of the most commonly used TCP ports, plus a limited number of UDP ports
  • All Ports: scans all TCP ports (1 to 65535), plus a limited number of UDP ports
List of TCP ports scanned by Private Scanner in Top Ports mode

11, 13, 15, 17, 19, 20, 21, 22, 23, 24, 25, 26, 37, 38, 43, 49, 51, 53, 69, 70, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 95, 96, 97, 98, 99, 100, 102, 104, 106, 110, 111, 113, 119, 121, 122, 123, 129, 131, 135, 137, 139, 143, 154, 161, 175, 179, 180, 189, 190, 192, 195, 199, 211, 221, 222, 225, 263, 264, 285, 311, 314, 340, 389, 400, 427, 440, 441, 443, 444, 445, 447, 448, 449, 450, 465, 480, 491, 500, 502, 503, 513, 515, 520, 522, 523, 541, 548, 554, 555, 556, 587, 593, 623, 626, 631, 636, 646, 666, 675, 685, 771, 772, 777, 785, 789, 800, 801, 805, 806, 808, 811, 830, 843, 853, 873, 880, 886, 887, 888, 902, 943, 953, 990, 992, 993, 994, 995, 999, 1000, 1002, 1010, 1012, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1050, 1063, 1080, 1099, 1110, 1111, 1119, 1153, 1167, 1177, 1180, 1194, 1200, 1207, 1234, 1250, 1290, 1311, 1337, 1344, 1355, 1366, 1388, 1400, 1414, 1433, 1434, 1443, 1447, 1471, 1494, 1500, 1515, 1521, 1554, 1588, 1599, 1604, 1605, 1650, 1660, 1701, 1723, 1741, 1777, 1800, 1801, 1820, 1830, 1833, 1883, 1900, 1901, 1911, 1925, 1926, 1935, 1947, 1950, 1951, 1958, 1962, 1965, 1966, 1970, 1980, 1981, 1990, 1991, 2000, 2001, 2002, 2003, 2006, 2008, 2010, 2012, 2018, 2020, 2021, 2022, 2030, 2031, 2048, 2049, 2050, 2051, 2052, 2053, 2054, 2055, 2056, 2057, 2058, 2059, 2060, 2061, 2062, 2063, 2064, 2065, 2066, 2067, 2068, 2069, 2070, 2077, 2079, 2080, 2081, 2082, 2083, 2086, 2087, 2095, 2096, 2100, 2103, 2107, 2111, 2121, 2122, 2123, 2126, 2150, 2152, 2154, 2181, 2200, 2201, 2202, 2211, 2220, 2221, 2222, 2223, 2225, 2232, 2233, 2250, 2259, 2266, 2271, 2320, 2323, 2332, 2345, 2351, 2352, 2375, 2376, 2379, 2382, 2404, 2423, 2443, 2455, 2480, 2506, 2525, 2548, 2549, 2550, 2551, 2552, 2553, 2554, 2555, 2556, 2557, 2558, 2559, 2560, 2561, 2562, 2563, 2566, 2567, 2568, 2569, 2570, 2572, 2598, 2599, 2601, 2602, 2626, 2628, 2650, 2701, 2709, 2761, 2762, 2806, 2850, 2985, 3000, 3001, 3002, 3005, 3048, 3049, 3050, 3051, 3052, 3053, 3054, 3055, 3056, 3057, 3058, 3059, 3060, 3061, 3062, 3063, 3066, 3067, 3068, 3069, 3070, 3071, 3072, 3073, 3074, 3075, 3076, 3077, 3078, 3079, 3080, 3081, 3082, 3083, 3084, 3085, 3086, 3087, 3088, 3089, 3090, 3091, 3092, 3093, 3094, 3095, 3096, 3097, 3098, 3099, 3100, 3101, 3102, 3103, 3104, 3105, 3106, 3107, 3108, 3109, 3110, 3111, 3112, 3113, 3114, 3115, 3116, 3117, 3118, 3119, 3120, 3121, 3128, 3129, 3160, 3165, 3200, 3211, 3221, 3260, 3268, 3269, 3270, 3283, 3299, 3301, 3306, 3307, 3310, 3311, 3333, 3337, 3341, 3352, 3386, 3388, 3389, 3391, 3400, 3401, 3402, 3403, 3404, 3405, 3406, 3407, 3408, 3409, 3410, 3412, 3443, 3460, 3479, 3498, 3503, 3510, 3521, 3522, 3523, 3524, 3531, 3541, 3542, 3548, 3549, 3550, 3551, 3552, 3554, 3555, 3556, 3557, 3558, 3559, 3560, 3561, 3562, 3563, 3566, 3567, 3568, 3569, 3570, 3580, 3590, 3671, 3689, 3690, 3702, 3749, 3780, 3784, 3790, 3791, 3792, 3793, 3794, 3838, 3910, 3922, 3950, 3951, 3952, 3953, 3954, 4000, 4001, 4002, 4010, 4022, 4040, 4042, 4043, 4063, 4064, 4070, 4085, 4100, 4117, 4118, 4150, 4157, 4165, 4190, 4200, 4242, 4243, 4244, 4282, 4321, 4343, 4344, 4369, 4401, 4430, 4433, 4434, 4443, 4444, 4445, 4447, 4449, 4461, 4477, 4482, 4500, 4502, 4505, 4506, 4523, 4524, 4545, 4550, 4567, 4572, 4643, 4646, 4664, 4700, 4730, 4734, 4747, 4782, 4786, 4800, 4808, 4840, 4848, 4899, 4911, 4949, 4999, 5000, 5001, 5002, 5003, 5004, 5005, 5006, 5007, 5008, 5009, 5010, 5025, 5050, 5060, 5061, 5070, 5080, 5083, 5090, 5094, 5100, 5105, 5120, 5122, 5130, 5135, 5150, 5160, 5172, 5190, 5201, 5209, 5222, 5225, 5226, 5227, 5229, 5231, 5234, 5235, 5236, 5237, 5240, 5242, 5244, 5245, 5246, 5248, 5249, 5251, 5252, 5255, 5256, 5269, 5271, 5272, 5277, 5280, 5321, 5353, 5357, 5400, 5431, 5432, 5433, 5435, 5440, 5443, 5446, 5454, 5494, 5500, 5503, 5542, 5544, 5552, 5555, 5560, 5567, 5568, 5569, 5577, 5590, 5591, 5592, 5593, 5594, 5595, 5596, 5597, 5598, 5599, 5600, 5601, 5602, 5603, 5604, 5605, 5606, 5607, 5608, 5609, 5620, 5632, 5640, 5671, 5672, 5673, 5680, 5683, 5684, 5701, 5800, 5801, 5804, 5822, 5853, 5858, 5900, 5901, 5902, 5903, 5904, 5905, 5906, 5907, 5908, 5909, 5910, 5911, 5914, 5915, 5916, 5917, 5918, 5920, 5938, 5984, 5985, 5986, 5989, 5991, 5995, 5997, 5998, 6000, 6001, 6002, 6003, 6004, 6005, 6006, 6007, 6008, 6009, 6010, 6020, 6036, 6050, 6060, 6061, 6066, 6080, 6100, 6102, 6161, 6262, 6264, 6308, 6352, 6363, 6379, 6380, 6440, 6443, 6464, 6482, 6501, 6503, 6510, 6511, 6512, 6543, 6550, 6560, 6561, 6565, 6580, 6581, 6588, 6590, 6600, 6601, 6602, 6603, 6605, 6606, 6622, 6633, 6650, 6653, 6662, 6664, 6666, 6667, 6668, 6686, 6688, 6697, 6699, 6748, 6789, 6881, 6887, 6955, 6969, 6998, 7000, 7001, 7002, 7003, 7004, 7005, 7007, 7010, 7013, 7014, 7020, 7022, 7025, 7050, 7070, 7071, 7078, 7079, 7080, 7081, 7082, 7083, 7084, 7085, 7086, 7087, 7088, 7090, 7100, 7102, 7105, 7170, 7171, 7218, 7272, 7401, 7403, 7415, 7433, 7434, 7443, 7444, 7445, 7465, 7474, 7493, 7500, 7510, 7535, 7537, 7547, 7548, 7634, 7654, 7657, 7676, 7700, 7707, 7771, 7773, 7775, 7776, 7777, 7778, 7779, 7788, 7887, 7900, 7979, 7989, 7998, 7999, 8000, 8001, 8002, 8003, 8004, 8005, 8006, 8007, 8008, 8009, 8010, 8011, 8012, 8013, 8014, 8015, 8016, 8017, 8018, 8019, 8020, 8021, 8022, 8023, 8024, 8025, 8026, 8027, 8028, 8029, 8030, 8031, 8032, 8033, 8034, 8035, 8036, 8037, 8038, 8039, 8040, 8041, 8042, 8043, 8044, 8045, 8046, 8047, 8048, 8049, 8050, 8051, 8052, 8053, 8054, 8055, 8056, 8057, 8058, 8060, 8061, 8064, 8066, 8069, 8071, 8072, 8080, 8081, 8082, 8083, 8084, 8085, 8086, 8087, 8088, 8089, 8090, 8091, 8092, 8093, 8094, 8095, 8096, 8097, 8098, 8099, 8100, 8101, 8102, 8103, 8104, 8105, 8106, 8107, 8108, 8109, 8110, 8111, 8112, 8113, 8118, 8123, 8126, 8139, 8140, 8143, 8159, 8180, 8181, 8182, 8184, 8188, 8190, 8200, 8203, 8222, 8236, 8237, 8238, 8239, 8241, 8243, 8248, 8249, 8251, 8252, 8282, 8291, 8300, 8333, 8334, 8343, 8383, 8401, 8402, 8403, 8404, 8405, 8406, 8407, 8408, 8409, 8410, 8411, 8412, 8413, 8414, 8415, 8416, 8417, 8418, 8419, 8420, 8421, 8422, 8423, 8424, 8425, 8426, 8427, 8428, 8429, 8430, 8431, 8432, 8433, 8440, 8441, 8442, 8443, 8444, 8445, 8446, 8447, 8448, 8449, 8451, 8453, 8454, 8455, 8500, 8502, 8503, 8506, 8513, 8520, 8521, 8525, 8528, 8529, 8536, 8543, 8544, 8545, 8549, 8553, 8554, 8556, 8562, 8566, 8570, 8573, 8575, 8576, 8578, 8581, 8585, 8586, 8590, 8591, 8593, 8594, 8599, 8602, 8606, 8621, 8622, 8623, 8637, 8649, 8663, 8666, 8686, 8688, 8700, 8702, 8703, 8704, 8705, 8708, 8709, 8728, 8731, 8732, 8733, 8764, 8765, 8766, 8767, 8779, 8782, 8784, 8787, 8788, 8789, 8790, 8791, 8800, 8801, 8802, 8803, 8804, 8805, 8806, 8807, 8808, 8809, 8810, 8811, 8812, 8813, 8814, 8815, 8816, 8817, 8818, 8819, 8820, 8821, 8822, 8823, 8824, 8825, 8826, 8827, 8828, 8829, 8830, 8831, 8832, 8833, 8834, 8835, 8836, 8837, 8838, 8839, 8840, 8841, 8842, 8843, 8844, 8845, 8846, 8847, 8848, 8849, 8850, 8851, 8852, 8853, 8854, 8855, 8856, 8857, 8858, 8859, 8860, 8861, 8862, 8863, 8864, 8865, 8866, 8867, 8868, 8869, 8870, 8871, 8872, 8873, 8874, 8875, 8876, 8877, 8878, 8879, 8880, 8881, 8885, 8886, 8887, 8888, 8889, 8890, 8891, 8899, 8935, 8969, 8988, 8989, 8990, 8991, 8993, 8999, 9000, 9001, 9002, 9003, 9004, 9005, 9006, 9007, 9008, 9009, 9010, 9011, 9012, 9013, 9014, 9015, 9016, 9017, 9018, 9019, 9020, 9021, 9022, 9023, 9024, 9025, 9026, 9027, 9028, 9029, 9030, 9031, 9032, 9033, 9034, 9035, 9036, 9037, 9038, 9039, 9040, 9041, 9042, 9043, 9044, 9045, 9046, 9047, 9048, 9049, 9050, 9051, 9052, 9053, 9054, 9055, 9056, 9057, 9061, 9062, 9063, 9064, 9065, 9066, 9068, 9069, 9070, 9072, 9073, 9074, 9075, 9076, 9077, 9080, 9082, 9084, 9087, 9088, 9089, 9090, 9091, 9092, 9093, 9094, 9095, 9096, 9097, 9098, 9099, 9100, 9101, 9102, 9103, 9104, 9105, 9106, 9107, 9108, 9109, 9110, 9111, 9112, 9113, 9114, 9115, 9116, 9117, 9118, 9119, 9120, 9121, 9122, 9123, 9124, 9125, 9128, 9134, 9136, 9140, 9141, 9142, 9143, 9144, 9145, 9146, 9147, 9148, 9149, 9150, 9151, 9152, 9153, 9157, 9158, 9159, 9160, 9161, 9162, 9163, 9164, 9165, 9166, 9167, 9168, 9169, 9170, 9172, 9174, 9175, 9176, 9177, 9178, 9179, 9180, 9181, 9182, 9183, 9184, 9185, 9186, 9187, 9188, 9189, 9190, 9191, 9192, 9193, 9195, 9196, 9197, 9198, 9199, 9200, 9201, 9202, 9203, 9204, 9205, 9206, 9207, 9208, 9209, 9210, 9211, 9212, 9213, 9214, 9215, 9216, 9217, 9218, 9219, 9220, 9221, 9222, 9243, 9251, 9289, 9295, 9299, 9300, 9301, 9302, 9303, 9304, 9305, 9306, 9307, 9308, 9309, 9310, 9311, 9333, 9350, 9387, 9389, 9398, 9410, 9418, 9433, 9441, 9443, 9444, 9445, 9454, 9455, 9456, 9500, 9501, 9510, 9527, 9530, 9532, 9550, 9595, 9600, 9606, 9633, 9663, 9674, 9682, 9690, 9704, 9710, 9711, 9734, 9743, 9754, 9761, 9765, 9773, 9779, 9800, 9803, 9804, 9861, 9869, 9876, 9898, 9899, 9901, 9943, 9944, 9950, 9955, 9966, 9981, 9988, 9990, 9991, 9992, 9993, 9994, 9997, 9998, 9999, 10000, 10001, 10002, 10003, 10004, 10005, 10006, 10007, 10008, 10009, 10013, 10020, 10022, 10050, 10051, 10065, 10075, 10080, 10081, 10100, 10134, 10225, 10243, 10250, 10324, 10380, 10443, 10533, 10554, 10892, 10909, 10911, 10934, 10935, 10936, 11000, 11002, 11007, 11101, 11110, 11112, 11180, 11210, 11211, 11288, 11300, 11371, 11401, 11434, 11601, 11602, 11680, 11681, 11701, 12000, 12111, 12323, 12324, 12325, 12326, 12345, 12443, 13579, 14101, 14130, 14147, 14265, 14344, 14401, 14402, 14403, 14404, 14406, 14407, 14873, 14875, 14880, 14894, 14895, 14896, 14897, 14900, 14901, 14903, 14905, 14909, 15000, 15001, 15018, 15038, 15040, 15042, 15044, 15123, 15151, 15443, 15588, 15831, 16010, 16030, 16316, 16464, 16800, 16831, 16992, 16993, 17000, 17443, 18080, 18081, 18245, 18264, 18443, 19000, 19015, 19071, 19233, 20000, 20001, 20010, 20018, 20020, 20030, 20040, 20050, 20060, 20070, 20080, 20087, 20090, 20100, 20106, 20107, 20121, 20200, 20201, 20208, 20256, 20500, 20512, 20547, 20600, 20880, 21001, 21002, 21025, 21200, 21242, 21300, 21305, 21379, 22000, 22022, 22103, 22107, 22206, 22222, 22556, 22705, 23023, 23424, 24442, 24808, 25000, 25001, 25002, 25006, 25007, 25105, 25565, 27015, 27016, 27017, 27036, 28015, 28017, 29840, 29842, 29984, 30000, 30001, 30002, 30003, 30005, 30006, 30050, 30104, 30106, 30110, 30111, 30112, 30113, 30120, 30121, 30122, 30123, 30443, 30718, 31337, 31444, 32080, 32101, 32102, 32303, 32400, 32764, 33060, 33338, 35000, 37215, 37777, 38520, 40000, 40056, 40443, 40894, 41337, 41794, 41800, 42901, 44158, 44303, 44304, 44305, 44306, 44310, 44333, 44336, 44345, 44350, 44444, 44818, 45000, 45001, 47001, 47808, 47990, 48899, 49152, 49153, 49501, 49502, 49592, 49682, 49684, 49686, 49688, 49692, 49767, 50000, 50001, 50011, 50012, 50050, 50070, 50100, 50101, 50113, 50443, 50805, 50995, 50996, 50997, 50999, 51000, 51001, 51002, 51003, 51005, 51007, 51106, 51235, 52230, 52311, 52869, 52881, 52931, 52951, 53413, 54138, 54984, 55000, 55442, 55443, 55553, 55554, 55555, 58000, 58603, 60001, 60010, 60030, 60129, 60443, 61234, 61613, 61616, 61617, 62078, 62237, 62865, 63260, 64295, 64738.

In both modes, Netlas Private Scanner scans a limited set of UDP ports: 53, 123, 137, 161, and 162.

Scan Coins

You can create as many scan tasks as you have Scan Coins. Scanning one target — whether it's an IP address or a domain — costs one Scan Coin.

Discovery toolbar Discovery toolbar

When you create a scan task, the number of Scan Coins corresponding to the number of targets in the scan is temporarily blocked. The coins are only deducted once the scan is completed. If you cancel the scan before it starts, the Scan Coins will be unblocked and returned to your account.

The number of Scan Coins available each month is determined by your pricing plan.

Scanner Queue

Once created, the scan is queued. The time required to process your scan depends on your pricing plan and the current load on the scanning agent pool. You can view the approximate execution time of your scan task in the ETC (Estimated Time to Complete) column.

Scanning Agents

Users of each pricing plan share a pool of scanning agents. When you create a task, it may not be sent for execution immediately. The task will remain in a Pending status until at least one scanning agent assigned to the queue for your pricing plan becomes available.

For higher pricing plans, each team of users under one license has a dedicated scanning agent. As a result, all scanning tasks created by team members are executed sequentially.

Scan Priority

If you have created several scans, you can change their priority while they are in the Pending status by dragging them. Dragging a scan down increases its priority, causing it to be performed earlier. Conversely, the scan that is highest in the queue will be performed last.

Netlas Private Scanner Netlas Private Scanner

Scan Results

To access the scan results, click the Search button in the row of the corresponding task. This will open the Responses Search Tool and run a search against the corresponding index.

You can switch to any other index available to you by clicking on the Index Selection button located to the right of the search bar.

If the scan does not return any responses, the index will not be created, and the Search button in the Private Scanner will be inactive.

Team Access

Netlas users can collaborate in teams to share their attack surfaces and scans. Any team member has read-only access to all attack surfaces and scans created by their teammates. This means they can view and share attack surfaces and scans created by other team members.

To create a team, go to your profile settings and navigate to the Teams section.