{"id":4978,"date":"2018-03-19T16:19:32","date_gmt":"2018-03-19T08:19:32","guid":{"rendered":"https:\/\/www.darknet.org.uk\/?p=4978"},"modified":"2018-03-19T16:19:53","modified_gmt":"2018-03-19T08:19:53","slug":"getaltname-discover-sub-domains-from-ssl-certificates","status":"publish","type":"post","link":"https:\/\/www.darknet.org.uk\/2018\/03\/getaltname-discover-sub-domains-from-ssl-certificates\/","title":{"rendered":"GetAltName &#8211; Discover Sub-Domains From SSL Certificates"},"content":{"rendered":"<p>GetAltName it&#8217;s a little script to discover sub-domains that can extract Subject Alt Names for SSL Certificates directly from HTTPS websites which can provide you with DNS names or virtual servers.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.darknet.org.uk\/wp-content\/uploads\/2018\/03\/GetAltName-Discover-Sub-Domains-From-SSL-Certificates-640x323.png\" alt=\"GetAltName - Discover Sub-Domains From SSL Certificates\" width=\"640\" height=\"323\" class=\"aligncenter size-medium wp-image-4986\" srcset=\"https:\/\/www.darknet.org.uk\/wp-content\/uploads\/2018\/03\/GetAltName-Discover-Sub-Domains-From-SSL-Certificates-640x323.png 640w, https:\/\/www.darknet.org.uk\/wp-content\/uploads\/2018\/03\/GetAltName-Discover-Sub-Domains-From-SSL-Certificates-1024x517.png 1024w, https:\/\/www.darknet.org.uk\/wp-content\/uploads\/2018\/03\/GetAltName-Discover-Sub-Domains-From-SSL-Certificates.png 1061w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/p>\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3033787195489589\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- Darknet Responsive Post Ad Links [previously link ad unit] -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3033787195489589\"\r\n     data-ad-slot=\"5456620019\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<p>It&#8217;s useful in a discovery phase of a pen-testing assessment, this tool can provide you with more information about your target and scope.<\/p>\n<h2>Features of GetAltName to Discover Sub-Domains<\/h2>\n<ul>\n<li>Strips wildcards and www&#8217;s<\/li>\n<li>Returns a unique list (no duplicates)<\/li>\n<li>Works on verified and self-signed certs<\/li>\n<li>Domain matching system<\/li>\n<li>Filtering for main domains and TLDs<\/li>\n<li>Gets additional sub-domains from crt.sh<\/li>\n<li>Outputs to clipboard<\/li>\n<\/ul>\n<h2>GetAltName Subdomain Exctraction Tool Usage<\/h2>\n<p>You can output to a text file and also copy the output to your clipboard as a List or a Single line string, which is useful if you&#8217;re trying to make a quick scan with <a href=\"https:\/\/www.darknet.org.uk\/2007\/12\/nmap-port-scanner-450-released-for-download\/\">Nmap<\/a> or other tools.<\/p>\n<pre>usage: getaltname.py [-h] [-p PORT] [-s [timeout]] [-m] [-o OUTPUT] [-c {l,s}]\r\n                     [-d]\r\n                     hostname\r\n\r\npositional arguments:\r\n  hostname                              Host to analyze.\r\n\r\noptional arguments:\r\n  -h, --help                            show this help message and exit\r\n  -p PORT, --port PORT                  Destiny port (default 443)\r\n  -s [timeout], --search-crt [timeout]  Retrieve subdomains found in crt.sh\r\n  -m, --matching-domain                 Show matching domain name only\r\n  -o OUTPUT, --output OUTPUT            Set output filename\r\n  -c {l,s}, --clipboard {l,s}           Copy the output to the clipboard as a\r\n                                        List or a Single string\r\n  -d, --debug                           Set debug enable<\/pre>\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3033787195489589\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- Darknet Responsive Post Ad Links [previously link ad unit] -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3033787195489589\"\r\n     data-ad-slot=\"5456620019\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<h3>GetAltName Required<\/h3>\n<ul>\n<li>colorama<\/li>\n<li>ndg-httpsclient<\/li>\n<li>pyperclip<\/li>\n<li>requests<\/li>\n<li>tldextract<\/li>\n<\/ul>\n<p>There are other DNS discovery and extraction tools using different methods, including brute-forcing such as:<\/p>\n<p>&#8211; <a href=\"https:\/\/www.darknet.org.uk\/2015\/05\/instarecon-automated-subdomain-discovery-tool\/\">InstaRecon &#8211; Automated Subdomain Discovery Tool<\/a><br \/>\n&#8211; <a href=\"https:\/\/www.darknet.org.uk\/2009\/12\/hostmap-0-2-automatic-hostname-virtual-hosts-discovery-tool\/\">hostmap 0.2 &#8211; Automatic Hostname &#038; Virtual Hosts Discovery Tool<\/a><br \/>\n&#8211; <a href=\"https:\/\/www.darknet.org.uk\/2016\/05\/subbrute-subdomain-brute-forcing-tool\/\">SubBrute \u2013 Subdomain Brute-forcing Tool<\/a><br \/>\n&#8211; <a href=\"https:\/\/www.darknet.org.uk\/2018\/02\/altdns-subdomain-recon-tool-with-permutation-generation\/\">altdns \u2013 Subdomain Recon Tool With Permutation Generation<\/a><\/p>\n<p>You can download GetAltName here:<\/p>\n<p><a href=\"https:\/\/github.com\/franccesco\/getaltname\/archive\/1.0.0.zip\">getaltname-1.0.0.zip<\/a><\/p>\n<p>Or read more <a href=\"https:\/\/github.com\/franccesco\/getaltname\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>GetAltName it&#8217;s a little script to discover sub-domains that can extract Subject Alt Names for SSL Certificates directly from HTTPS websites which can provide you with DNS names or virtual servers. It&#8217;s useful in a discovery phase of a pen-testing assessment, this tool can provide you with more information about your target and scope. Features [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"GetAltName it's a little script to discover sub-domains that can extract Subject Alt Names for SSL Certificates directly from HTTPS websites which can provide you with DNS names or virtual servers.","_seopress_robots_index":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[9],"tags":[7281,2345,3105],"featured_image_src":null,"featured_image_src_square":null,"author_info":{"display_name":"Darknet","author_link":"https:\/\/www.darknet.org.uk\/author\/darknet\/"},"_links":{"self":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts\/4978"}],"collection":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/comments?post=4978"}],"version-history":[{"count":0,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts\/4978\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/media?parent=4978"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/categories?post=4978"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/tags?post=4978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}