Private Scanner

Not available on the free plan

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.

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.

When creating a scan, you can also choose a Scanner Location. A Scanner Location is backed by a Netlas scanning agent: the scanner node that sends packets to your targets. Scanner Locations can be in different countries and use different public IP addresses, so the selected location defines the scan source seen by the target network.

Multiple Scanner Locations are available only on higher pricing plans.

If you do not select a Scanner Location manually, Netlas uses the default available location for your account. Choose a specific location when you need to check how an asset is exposed from a particular geolocation or when your allowlists, firewall rules, or monitoring workflows depend on the scanner source IP address.

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.

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

When you create a scan, it may not start immediately. The task remains in the Pending status until the selected scanning agent becomes available.

Depending on your pricing plan, your team may have a dedicated default scanning agent under one license. In this case, all scan tasks created by team members for that agent are executed sequentially.

Scanner Locations

Users on higher pricing plans have access to geographically distributed Scanner Locations. Each location has its own current load: one location may be available right now, while another may be occupied by scans that are already scheduled or running.

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.

Scan Results

Scan results are available in two forms:

• Scan Report: a concise summary of the most important data
• Private Index: the full set of responses, presented in the same format as regular internet scans

To access the Scan Report, click the REPORT button on the right side of the scan list. The scan must be finished before this button becomes available.

To access the private index, click the Search button in the row for the corresponding task. This opens the Responses Search Tool and runs a search against that index.

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

If the scan does not return any responses, no index is created, and the Search button in the Private Scanner remains 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.