Troubleshooting RDP connections to an Azure VMs

RDP - @SeniorDBA

One of the most important aspects of placing your computers on Azure is the ability to connect to them using the Remote Desktop Protocol (RDP) to your manage your Windows-based virtual machines (VM). The issue with RDP can be with the Remote Desktop service on the VM, the network connection, or the Remote Desktop client on your host computer. We will attempt to guide you through some of the most common methods to troubleshoot and resolve common RDP connection issues.

The steps are displayed in the general order, but you should try reconnecting to the VM after each troubleshooting step.

Continue reading “Troubleshooting RDP connections to an Azure VMs”

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Best Hacking Tools Of 2017: Nessus Vulnerability Scanner

Nessus Vulnerability Scanner

Developed by Tenable Network Security, this tool is one of the most popular vulnerability scanners on he market. Tenable provides different versions, depending on your needs: Nessus Home, Nessus Professional, Nessus Manager, and Nessus Cloud.

You can use Nessus to scan multiple types of vulnerabilities that include remote access flaw detection, misconfiguration alert, denial of services against TCP/IP stack, preparation of PCI DSS audits, malware detection, sensitive data searches, etc. Nessus can also call a popular external tools.

Nessus is supported by a variety of platforms including Windows, Mac OS, and popular Linux distributions like Debian, Ubuntu, Kali Linux, etc.

You can get more information and download the Nessus Home (free) tool here. The commercial version is available here.

Best Hacking Tools Of 2017: ADBrute

Password- SeniorDBA

If you have an Active Directory environment, you want to make it as secure as possible. ADBrute allows you to test the security of your Active Directory users. When a users network account of a domain user expires or when the user account is locked due to incorrect login attempts, the domain administrator may reset the password to the default password based on company policy. If your users do not change their password after it has been reset by the administrator, it creates a major security hole in your security.

A malicious user could easily use the default password to login into the victim’s user accounts, delete, read and send mails or access other resources on the network.

ADBrute is simple to use:

  1. Run ADBrute.
  2. Enter the name of the domain controller and valid login credentials to connect to the Active Directory. The user can be any user on the domain.
  3. Click on Login and wait till the entire user list for your organization is populated from the AD.
  4. You can double click on a User to view additional information.
  5. Enter the default password for your organization and press the start button.
  6. Sit back until the program scans and enumerates users who use the default password.
  7. You can export both the lists, the entire user list as well as the weak user list to three different file formats, .csv, .txt and .xls.

You can get more information and download the tool here.

Best Hacking Tools Of 2017: Metasploit

Metasploit - SeniorDBA

So people might know Metasploit as collection of exploit tools, but it is really an infrastructure that you can use to build your own custom tools. This very popular free cybersecurity tool will help you locate vulnerabilities on multiple platforms. With more than 200,000 users and contributors, Metasploit will help you to get insights and information about the weaknesses on your systems.

You can get more information and download the tool here.

Windows Run Commands

Windows Run Command - SeniorDBA

The Windows Run command is used to open an application or document whose path is known. It functions more or less like a single-line command line interface. It can help abbreviate the process of accessing a specific utility or application without having to navigate other menus or select from utility features.

Windows Run commands:

Request Command
Quick Access To C: drive  \
Open the current user’s home folder  .
Open up the Users folder  ..
Open Documents Folder documents
Open Videos folder videos
Open Downloads Folder downloads
Open Favorites Folder favorites
Open Recent Folder recent
Open Recent Folder logoff
Open Pictures Folder pictures
Windows Sideshow control.exe /name Microsoft.WindowsSideshow
Windows CardSpace control.exe /name Microsoft.cardspace
Windows Anytime Upgrade WindowsAnytimeUpgradeui
Taskbar and Start Menu control.exe /name Microsoft.TaskbarandStartMenu
Troubleshooting control.exe /name Microsoft.Troubleshooting
User Accounts control.exe /name Microsoft.UserAccounts
Adding a new Device devicepairingwizard
Add Hardware Wizard hdwwiz
Advanced User Accounts netplwiz
Advanced User Accounts azman.msc
Backup and Restore sdclt
Bluetooth File Transfer fsquirt
Calculator calc
Certificates certmgr.msc
Change Computer Performance Settings systempropertiesperformance
Change Data Execution Prevention Settings systempropertiesdataexecutionprevention
Change Data Execution Prevention Settings printui
Character Map charmap
ClearType Tuner cttune
Color Management colorcpl
Command Prompt cmd
Component Services comexp.msc
Component Services dcomcnfg
Computer Management compmgmt.msc
Computer Management compmgmtlauncher
Connect to a Network Projector netproj
Connect to a Projector displayswitch
Control Panel control
Create A Shared Folder Wizard shrpubw
Create a System Repair Disc recdisc
Credential Backup and Restore Wizard credwiz
Data Execution Prevention systempropertiesdataexecutionprevention
Date and Time timedate.cpl
Default Location locationnotifications
Device Manager devmgmt.msc
Device Manager hdwwiz.cpl
Device Pairing Wizard devicepairingwizard
Diagnostics Troubleshooting Wizard msdt
Digitizer Calibration Tool tabcal
DirectX Diagnostic Tool dxdiag
Disk Cleanup cleanmgr
Disk Defragmenter dfrgui
Disk Management diskmgmt.msc
Display dpiscaling
Display Color Calibration dccw
Display Switch displayswitch
DPAPI Key Migration Wizard dpapimig
Driver Verifier Manager verifier
Ease of Access Center utilman
EFS Wizard rekeywiz
Event Viewer eventvwr.msc
Fax Cover Page Editor fxscover
File Signature Verification sigverif
Font Viewer fontview
Game Controllers joy.cpl
Getting Started gettingstarted
IExpress Wizard iexpress
Getting Started irprops.cpl
Install or Uninstall Display Languages lusrmgr
Internet Explorer iexplore
Internet Options inetcpl.cpl
iSCSI Initiator Configuration Tool iscsicpl
Language Pack Installer lpksetup
Local Group Policy Editor gpedit.msc
Local Security Policy secpol.msc
Local Users and Groups lusrmgr.msc
Location Activity locationnotifications
Magnifier magnify
Malicious Software Removal Tool mrt
Manage Your File Encryption Certificates rekeywiz
Math Input Panel mip
Microsoft Management Console mmc
Microsoft Support Diagnostic Tool msdt
Mouse main.cpl
NAP Client Configuration napclcfg.msc
Narrator narrator
Network Connections ncpa.cpl
New Scan Wizard wiaacmgr
Notepad notepad
ODBC Data Source Administrator odbcad32
ODBC Driver Configuration odbcconf
On-Screen Keyboard osk
Paint mspaint
Pen and Touch tabletpc.cpl
People Near Me collab.cpl
Performance Monitor perfmon.msc
Performance Options systempropertiesperformance
Phone and Modem telephon.cpl
Phone Dialer dialer
Power Options powercfg.cpl
Presentation Settings presentationsettings
Print Management printmanagement.msc
Printer Migration printbrmui
Printer User Interface printui
Private Character Editor eudcedit
Problem Steps Recorder psr
Programs and Features appwiz.cpl
Protected Content Migration dpapimig
Region and Language intl.cpl
Registry Editor regedit
Registry Editor 32 regedt32
Remote Access Phonebook rasphone
Remote Desktop Connection mstsc
Resource Monitor resmon
Resultant Set of Policy rsop.msc
SAM Lock Tool syskey
Screen Resolution desk.cpl
Securing the Windows Account Database syskey
Services services.msc
Set Program Access and Computer Defaults computerdefaults
Share Creation Wizard shrpubw
Shared Folders fsmgmt.msc
Snipping Tool snippingtool
Sound mmsys.cpl
Sound recorder soundrecorder
SQL Server Client Network Utility cliconfg
Sticky Notes stikynot
Stored User Names and Passwords credwiz
Sync Center mobsync
System Configuration msconfig
System Configuration Editor sysedit
System Information msinfo32
System Properties sysdm.cpl
System Properties (Advanced Tab) systempropertiesadvanced
System Properties (Computer Name Tab) systempropertiescomputername
System Properties (Hardware Tab) systempropertieshardware
System Properties (Remote Tab) systempropertiesremote
System Properties (System Protection Tab) systempropertiesprotection
System Restore rstrui
Task Manager taskmgr
Task Scheduler taskschd.msc
Trusted Platform Module (TPM) Management tpm.msc
User Account Control Settings useraccountcontrolsettings
Utility Manager utilman
Version Reporter Applet winver
Volume Mixer sndvol
Windows Action Center wscui.cpl
Windows Activation Client slui
Windows Anytime Upgrade Results windowsanytimeupgraderesults
Windows CardSpace infocardcpl.cpl
Windows Disc Image Burning Tool isoburn
Windows DVD Maker dvdmaker
Windows Easy Transfer migwiz
Windows Explorer explorer
Windows Fax and Scan wfs
Windows Features optionalfeatures
Windows Firewall firewall.cpl
Windows Firewall with Advanced Security wf.msc
Windows Journal journal
Windows Media Player wmplayer
Windows Memory Diagnostic Scheduler mdsched
Windows Mobility Center mblctr
Windows Picture Acquisition Wizard wiaacmgr
Windows PowerShell powershell
Windows PowerShell ISE powershell_ise
Windows Remote Assistance msra
Windows Repair Disc recdisc
Windows Script Host wscript
Windows Update wuapp
Windows Update Standalone Installer wusa
Version Windows winver
WMI Management wmimgmt.msc
WordPad write
XPS Viewer xpsrchvw
Import to Windows Contacts wabmig
Tablet PC Input Panel tabtip
Windows Contacts wab
Windows Firewall with Advanced Security wf
Windows Help and Support winhlp32
Windows Script Host wscript
WMI Tester wbemtest
Access Screen Resolution page desk.cpl
Access Mouse properties main.cpl
Access Windows Action Center wscui.cpl
Access Network Adapters ncpa.cpl
Access Power Option powercfg.cpl
Access the Programs and Features Window appwiz.cpl
Access the System Properties sysdm.cpl
Access the Windows Firewall firewall.cpl

If you need more help, there is a lot of information out there on this subject.

Microsoft Open-Source and Cross Platform Development

.Net Framework - SeniorDBA

The Microsoft .Net framework has been around for about 14 years. While C#, C++, VB.NET, and F# seem to be the most supported and used languages to build .NET applications, there are close to 50 languages that are supported by the .NET framework.

In 2014, Microsoft moved to open-source .NET by introducing .NET Core. Most of the .NET components (compilers, languages, libraries, and tools) are now open-source and available in Github.

The new open-source component of .NET is named .NET Corevand has even more developers embracing what Microsoft is doing with .NET and the associated programming languages. Microsoft has acquired Xamarin and its products so developers can now use C# to build Android, iOS, and Windows mobile apps.

Is now the time to seriously consider the Microsoft .Net framework for your development?