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<span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <p class="header_title"> <a href="https://adsecurity.org" title="Go back to the front page"> Active Directory Security </a> </p> <p class="header_desc">Active Directory & Enterprise Security, Methods to Secure Active Directory, Attack Methods & Effective Defenses, PowerShell, Tech Notes, & Geek Trivia…</p> </div> <div class="collapse navbar-collapse" id="header-menu-wrap"> <ul class="nav navbar-nav flip"><li ><a href="https://adsecurity.org/">Home</a></li><li class="menu-item menu-item-8"><a href="https://adsecurity.org/?page_id=8" >About</a></li><li class="menu-item menu-item-41"><a href="https://adsecurity.org/?page_id=41" >AD Resources</a></li><li class="menu-item menu-item-4031"><a href="https://adsecurity.org/?page_id=4031" >Attack Defense & Detection</a></li><li class="menu-item menu-item-293"><a href="https://adsecurity.org/?page_id=293" >Contact</a></li><li class="menu-item 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category-microsoft-security category-technical-reference tag-activedirectory tag-crackpasswords tag-crackserviceaccountpassword tag-cracktgs tag-diamondpac tag-domaincontroller tag-forgedpac tag-goldenticket tag-kerberoast tag-kerberos tag-kerberossilverticket tag-mimikatz tag-ms14068 tag-mssql tag-powershell tag-python tag-rc4hmacmd5 tag-rc4_hmac_md5 tag-serviceprincipalname tag-silverticket tag-skeletonkey tag-spn tag-spnscanning tag-sql tag-tgs tag-tgscracker tag-tgt item-wrap"> <div class="entry clearfix"> <div class="post-date date alpha with-year"> <p class="default_date"> <span class="month">Dec</span> <span class="day">31</span> <span class="year">2015</span> </p> </div> <h2 class="post-title entry-title"> <a href="https://adsecurity.org/?p=2293" rel="bookmark" title="Permalink to Cracking Kerberos TGS Tickets Using Kerberoast – Exploiting Kerberos to Compromise the Active Directory Domain"> Cracking Kerberos TGS Tickets Using Kerberoast – Exploiting Kerberos to Compromise the Active Directory Domain </a> </h2> <ul class="post-meta entry-meta clearfix"> <li class="byline"> By <span class="author"><a href="https://adsecurity.org/?author=2" rel="author">Sean Metcalf</a></span><span class="entry-cat"> in <span class="terms"><a class="term term-category term-565" href="https://adsecurity.org/?cat=565">ActiveDirectorySecurity</a>, <a class="term term-category term-11" href="https://adsecurity.org/?cat=11">Microsoft Security</a>, <a class="term term-category term-2" href="https://adsecurity.org/?cat=2">Technical Reference</a></span></span> </li> </ul> <div class="entry-content clearfix"> <p class="excerpt-thumb"> <a href="https://adsecurity.org/?p=2293" rel="bookmark" title="Permalink to Cracking Kerberos TGS Tickets Using Kerberoast – Exploiting Kerberos to Compromise the Active Directory Domain"> <img width="300" height="25" src="https://adsecurity.org/wp-content/uploads/2015/12/Kerberoast-03-300x25.jpg" class="attachment-medium size-medium wp-post-image" alt="" decoding="async" srcset="https://adsecurity.org/wp-content/uploads/2015/12/Kerberoast-03-300x25.jpg 300w, https://adsecurity.org/wp-content/uploads/2015/12/Kerberoast-03.jpg 666w" sizes="(max-width: 300px) 100vw, 300px" /> </a> </p> <p>Microsoft’s Kerberos implementation in Active Directory has been targeted over the past couple of years by security researchers and attackers alike. The issues are primarily related to the legacy support in Kerberos when Active Directory was released in the year 2000 with Windows Server 2000. This legacy support is enabled when using Kerberos RC4 encryption … </p> <p><a class="more-link btn" href="https://adsecurity.org/?p=2293">Continue reading</a></p> </div> <ul class="entry-footer"> <li class="post-tags col-sm-8"><i class="fa fa-tags" title="Tags"></i> <span class="terms"><a class="term term-tagpost_tag term-20" href="https://adsecurity.org/?tag=activedirectory">ActiveDirectory</a>, <a class="term term-tagpost_tag term-736" href="https://adsecurity.org/?tag=crackpasswords">CrackPasswords</a>, <a class="term term-tagpost_tag term-738" href="https://adsecurity.org/?tag=crackserviceaccountpassword">CrackServiceAccountPassword</a>, <a class="term term-tagpost_tag term-737" href="https://adsecurity.org/?tag=cracktgs">CrackTGS</a>, <a class="term term-tagpost_tag term-735" href="https://adsecurity.org/?tag=diamondpac">DiamondPAC</a>, <a class="term term-tagpost_tag term-101" href="https://adsecurity.org/?tag=domaincontroller">DomainController</a>, <a class="term term-tagpost_tag term-734" href="https://adsecurity.org/?tag=forgedpac">ForgedPAC</a>, <a class="term term-tagpost_tag term-303" href="https://adsecurity.org/?tag=goldenticket">GoldenTicket</a>, <a class="term term-tagpost_tag term-673" href="https://adsecurity.org/?tag=kerberoast">Kerberoast</a>, <a class="term term-tagpost_tag term-81" href="https://adsecurity.org/?tag=kerberos">Kerberos</a>, <a class="term term-tagpost_tag term-206" href="https://adsecurity.org/?tag=kerberossilverticket">KerberosSilverTicket</a>, <a class="term term-tagpost_tag term-207" href="https://adsecurity.org/?tag=mimikatz">mimikatz</a>, <a class="term term-tagpost_tag term-295" href="https://adsecurity.org/?tag=ms14068">MS14068</a>, <a class="term term-tagpost_tag term-140" href="https://adsecurity.org/?tag=mssql">MSSQL</a>, <a class="term term-tagpost_tag term-575" href="https://adsecurity.org/?tag=powershell">PowerShell</a>, <a class="term term-tagpost_tag term-740" href="https://adsecurity.org/?tag=python">Python</a>, <a class="term term-tagpost_tag term-741" href="https://adsecurity.org/?tag=rc4hmacmd5">RC4HMACMD5</a>, <a class="term term-tagpost_tag term-708" href="https://adsecurity.org/?tag=rc4_hmac_md5">RC4_HMAC_MD5</a>, <a class="term term-tagpost_tag term-83" href="https://adsecurity.org/?tag=serviceprincipalname">ServicePrincipalName</a>, <a class="term term-tagpost_tag term-304" href="https://adsecurity.org/?tag=silverticket">SilverTicket</a>, <a class="term term-tagpost_tag term-414" href="https://adsecurity.org/?tag=skeletonkey">SkeletonKey</a>, <a class="term term-tagpost_tag term-294" href="https://adsecurity.org/?tag=spn">SPN</a>, <a class="term term-tagpost_tag term-471" href="https://adsecurity.org/?tag=spnscanning">SPNScanning</a>, <a class="term term-tagpost_tag term-732" href="https://adsecurity.org/?tag=sql">SQL</a>, <a class="term term-tagpost_tag term-528" href="https://adsecurity.org/?tag=tgs">TGS</a>, <a class="term term-tagpost_tag term-739" href="https://adsecurity.org/?tag=tgscracker">TGSCracker</a>, <a class="term term-tagpost_tag term-529" href="https://adsecurity.org/?tag=tgt">TGT</a></span></li> <li class="comment-link col-sm-4"><i class="fa fa-comments"></i> <a href="https://adsecurity.org/?p=2293#comments">1 comments</a></li> </ul> </div> </div> <div id="post-2288" class="clearfix post post-2288 type-post status-publish format-standard has-post-thumbnail hentry category-exploit category-microsoft-security category-technical-reference tag-aeskey tag-changelocaladministratorpassword tag-cpassword tag-exploitinggrouppolicypreferences tag-gpp tag-grouppolicypreferences tag-grouppolicypreferencespassword tag-groups-xml tag-kb2962486 tag-laps tag-localadministrator tag-localadministratorpassword tag-ms14-025 tag-ms14025 tag-policymaker tag-scheduledtasks tag-scheduledtasks-xml tag-services-xml tag-sysvol tag-vbs tag-xml item-wrap"> <div class="entry clearfix"> <div class="post-date date alpha with-year"> <p class="default_date"> <span class="month">Dec</span> <span class="day">28</span> <span class="year">2015</span> </p> </div> <h2 class="post-title entry-title"> <a href="https://adsecurity.org/?p=2288" rel="bookmark" title="Permalink to Finding Passwords in SYSVOL & Exploiting Group Policy Preferences"> Finding Passwords in SYSVOL & Exploiting Group Policy Preferences </a> </h2> <ul class="post-meta entry-meta clearfix"> <li class="byline"> By <span class="author"><a href="https://adsecurity.org/?author=2" rel="author">Sean Metcalf</a></span><span class="entry-cat"> in <span class="terms"><a class="term term-category term-347" href="https://adsecurity.org/?cat=347">Exploit</a>, <a class="term term-category term-11" href="https://adsecurity.org/?cat=11">Microsoft Security</a>, <a class="term term-category term-2" href="https://adsecurity.org/?cat=2">Technical Reference</a></span></span> </li> </ul> <div class="entry-content clearfix"> <p class="excerpt-thumb"> <a href="https://adsecurity.org/?p=2288" rel="bookmark" title="Permalink to Finding Passwords in SYSVOL & Exploiting Group Policy Preferences"> <img width="300" height="59" src="https://adsecurity.org/wp-content/uploads/2015/12/GPP-LocalAdmin-PasswordChange-XML-File-02-300x59.png" class="attachment-medium size-medium wp-post-image" alt="" decoding="async" srcset="https://adsecurity.org/wp-content/uploads/2015/12/GPP-LocalAdmin-PasswordChange-XML-File-02-300x59.png 300w, https://adsecurity.org/wp-content/uploads/2015/12/GPP-LocalAdmin-PasswordChange-XML-File-02-768x151.png 768w, https://adsecurity.org/wp-content/uploads/2015/12/GPP-LocalAdmin-PasswordChange-XML-File-02.png 912w" sizes="(max-width: 300px) 100vw, 300px" /> </a> </p> <p>At Black Hat and DEF CON this year, I spoke about ways attackers go from Domain User to Domain Admin in modern enterprises. Every Windows computer has a built-in Administrator account with an associated password. Changing this password is a security requirement in most organizations, though the method for doing so is not straight-forward. A … </p> <p><a class="more-link btn" href="https://adsecurity.org/?p=2288">Continue reading</a></p> </div> <ul class="entry-footer"> <li class="post-tags col-sm-8"><i class="fa fa-tags" title="Tags"></i> <span class="terms"><a class="term term-tagpost_tag term-767" href="https://adsecurity.org/?tag=aeskey">AESkey</a>, <a class="term term-tagpost_tag term-731" href="https://adsecurity.org/?tag=changelocaladministratorpassword">ChangeLocalAdministratorPassword</a>, <a class="term term-tagpost_tag term-747" href="https://adsecurity.org/?tag=cpassword">cpassword</a>, <a class="term term-tagpost_tag term-725" href="https://adsecurity.org/?tag=exploitinggrouppolicypreferences">ExploitingGroupPolicyPreferences</a>, <a class="term term-tagpost_tag term-12" href="https://adsecurity.org/?tag=gpp">GPP</a>, <a class="term term-tagpost_tag term-742" href="https://adsecurity.org/?tag=grouppolicypreferences">GroupPolicyPreferences</a>, <a class="term term-tagpost_tag term-191" href="https://adsecurity.org/?tag=grouppolicypreferencespassword">GroupPolicyPreferencesPassword</a>, <a class="term term-tagpost_tag term-748" href="https://adsecurity.org/?tag=groups-xml">groups.xml</a>, <a class="term term-tagpost_tag term-726" href="https://adsecurity.org/?tag=kb2962486">KB2962486</a>, <a class="term term-tagpost_tag term-631" href="https://adsecurity.org/?tag=laps">LAPS</a>, <a class="term term-tagpost_tag term-769" href="https://adsecurity.org/?tag=localadministrator">LocalAdministrator</a>, <a class="term term-tagpost_tag term-768" href="https://adsecurity.org/?tag=localadministratorpassword">LocalAdministratorPassword</a>, <a class="term term-tagpost_tag term-323" href="https://adsecurity.org/?tag=ms14-025">MS14-025</a>, <a class="term term-tagpost_tag term-324" href="https://adsecurity.org/?tag=ms14025">MS14025</a>, <a class="term term-tagpost_tag term-729" href="https://adsecurity.org/?tag=policymaker">PolicyMaker</a>, <a class="term term-tagpost_tag term-730" href="https://adsecurity.org/?tag=scheduledtasks">ScheduledTasks</a>, <a class="term term-tagpost_tag term-749" href="https://adsecurity.org/?tag=scheduledtasks-xml">scheduledtasks.xml</a>, <a class="term term-tagpost_tag term-750" href="https://adsecurity.org/?tag=services-xml">Services.xml</a>, <a class="term term-tagpost_tag term-621" href="https://adsecurity.org/?tag=sysvol">SYSVOL</a>, <a class="term term-tagpost_tag term-727" href="https://adsecurity.org/?tag=vbs">vbs</a>, <a class="term term-tagpost_tag term-728" href="https://adsecurity.org/?tag=xml">xml</a></span></li> <li class="comment-link col-sm-4"><i class="fa fa-comments"></i> <a href="https://adsecurity.org/?p=2288#comments">4 comments</a></li> </ul> </div> </div> <div id="post-2207" class="clearfix post post-2207 type-post status-publish format-standard has-post-thumbnail hentry category-microsoft-security category-technical-reference tag-detectingmimikatz tag-invoke-mimikatz tag-kerberos tag-mimikatz tag-mimikatzcommands tag-mimikatzmitigation tag-sekurlsa item-wrap"> <div class="entry clearfix"> <div class="post-date date alpha with-year"> <p class="default_date"> <span class="month">Dec</span> <span class="day">14</span> <span class="year">2015</span> </p> </div> <h2 class="post-title entry-title"> <a href="https://adsecurity.org/?p=2207" rel="bookmark" title="Permalink to Unofficial Guide to Mimikatz & Command Reference"> Unofficial Guide to Mimikatz & Command Reference </a> </h2> <ul class="post-meta entry-meta clearfix"> <li class="byline"> By <span class="author"><a href="https://adsecurity.org/?author=2" rel="author">Sean Metcalf</a></span><span class="entry-cat"> in <span class="terms"><a class="term term-category term-11" href="https://adsecurity.org/?cat=11">Microsoft Security</a>, <a class="term term-category term-2" href="https://adsecurity.org/?cat=2">Technical Reference</a></span></span> </li> </ul> <div class="entry-content clearfix"> <p class="excerpt-thumb"> <a href="https://adsecurity.org/?p=2207" rel="bookmark" title="Permalink to Unofficial Guide to Mimikatz & Command Reference"> <img width="300" height="283" src="https://adsecurity.org/wp-content/uploads/2015/11/Mimikatz-Sekurlsa-LogonPasswords-300x283.png" class="attachment-medium size-medium wp-post-image" alt="" decoding="async" fetchpriority="high" srcset="https://adsecurity.org/wp-content/uploads/2015/11/Mimikatz-Sekurlsa-LogonPasswords-300x283.png 300w, https://adsecurity.org/wp-content/uploads/2015/11/Mimikatz-Sekurlsa-LogonPasswords.png 672w" sizes="(max-width: 300px) 100vw, 300px" /> </a> </p> <p>A new page on ADSecurity.org just went live which is an “unofficial” guide to Mimikatz which also contains an expansive command reference of all available Mimikatz commands. Screenshots, descriptions, and parameters are included where available and appropriate. This page includes the following topics: Mimikatz Overview Mimikatz & Credentials Available Credentials by OS PowerShell & Mimikatz … </p> <p><a class="more-link btn" href="https://adsecurity.org/?p=2207">Continue reading</a></p> </div> <ul class="entry-footer"> <li class="post-tags col-sm-8"><i class="fa fa-tags" title="Tags"></i> <span class="terms"><a class="term term-tagpost_tag term-857" href="https://adsecurity.org/?tag=detectingmimikatz">DetectingMimikatz</a>, <a class="term term-tagpost_tag term-336" href="https://adsecurity.org/?tag=invoke-mimikatz">Invoke-Mimikatz</a>, <a class="term term-tagpost_tag term-81" href="https://adsecurity.org/?tag=kerberos">Kerberos</a>, <a class="term term-tagpost_tag term-207" href="https://adsecurity.org/?tag=mimikatz">mimikatz</a>, <a class="term term-tagpost_tag term-854" href="https://adsecurity.org/?tag=mimikatzcommands">MimikatzCommands</a>, <a class="term term-tagpost_tag term-856" href="https://adsecurity.org/?tag=mimikatzmitigation">MimikatzMitigation</a>, <a class="term term-tagpost_tag term-855" href="https://adsecurity.org/?tag=sekurlsa">Sekurlsa</a></span></li> <li class="comment-link col-sm-4"><i class="fa fa-comments"></i> <a href="https://adsecurity.org/?p=2207#comments">1 comments</a></li> </ul> </div> </div> </div> </div> <div id="sidebar1" class="sidebar sidebar-right widget-area col-md-4"> <div id="recent-posts-4" class="sidebar-wrap widget_recent_entries"> <h3>Recent Posts</h3> <ul> <li> <a href="https://adsecurity.org/?p=4436">BSides Dublin – The Current State of Microsoft Identity Security: Common Security Issues and Misconfigurations – Sean Metcalf</a> </li> <li> <a href="https://adsecurity.org/?p=4434">DEFCON 2017: Transcript – Hacking the Cloud</a> </li> <li> <a href="https://adsecurity.org/?p=4432">Detecting the Elusive: Active Directory Threat Hunting</a> </li> <li> <a href="https://adsecurity.org/?p=4430">Detecting Kerberoasting Activity</a> </li> <li> <a href="https://adsecurity.org/?p=4428">Detecting Password Spraying with Security Event Auditing</a> </li> </ul> </div><div id="text-3" class="sidebar-wrap widget_text"><h3>Trimarc Active Directory Security Services</h3> <div class="textwidget">Have concerns about your Active Directory environment? 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