Scanning the Internet with Nmap (Defcon 16) Tutorial Scanning The Internet With Nmap (Defcon 16) Description: How would you like to scan millions of hosts on the Internet and catalog all the interesting insights? This is exactly what Fyodor, the author of Nmap or Network Mapper did last summer. Thankfully, he then went on to share his finding with the community at Defcon 16 in his talk titled "Nmap: Scanning the Internet".
John the Ripper password cracker John the Ripper is free and Open Source software, distributed primarily in source code form. If you would rather use a commercial product tailored for your specific operating system, please consider John the Ripper Pro, which is distributed primarily in the form of "native" packages for the target operating systems and in general is meant to be easier to install and use while delivering optimal performance. This version integrates lots of contributed patches adding GPU support (OpenCL and CUDA), support for a hundred of additional hash and cipher types (including popular ones such as NTLM, raw MD5, etc., and even things such as encrypted OpenSSH private keys, ZIP and RAR archives, PDF files, etc.), as well as some optimizations and features. Unfortunately, its overall quality is lower than the official version's.
Computer acting funny? It may be infected with a virus! One great thing about computers is that they often warn us when something is wrong. Sometimes they suddenly slow down to a crawl, other times they start to freeze up or even crash for what seems to be no reason at all. Most of the time though, there is a reason why our computers start to act funny. One of those reasons is due to malware and viruses. No one likes to have a computer virus, but if you do happen to catch one, it’s important to know the warning signs so that you can take care of the problem as soon as possible. Below, you’ll find 10 signs to look out for on your computer that may prove your computer is infected with a virus.
Nessus Vulnerability Scanner Detect & Assess Nessus is continuously updated with information about advanced threats and zero-day vulnerabilities, and new types of regulatory compliance configuration audits. Report & Take Action Report what matters to responsible parties with exploitability, severity modification, scan scheduling and deliver remediation reports via targeted emails.
PsExec Introduction Utilities like Telnet and remote control programs like Symantec's PC Anywhere let you execute programs on remote systems, but they can be a pain to set up and require that you install client software on the remote systems that you wish to access. PsExec is a light-weight telnet-replacement that lets you execute processes on other systems, complete with full interactivity for console applications, without having to manually install client software. PsExec's most powerful uses include launching interactive command-prompts on remote systems and remote-enabling tools like IpConfig that otherwise do not have the ability to show information about remote systems. Note: some anti-virus scanners report that one or more of the tools are infected with a "remote admin" virus.
NetworkMiner - The NSM and Network Forensics Analysis Tool NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows (but also works in Linux / Mac OS X / FreeBSD). NetworkMiner can be used as a passive network sniffer/packet capturing tool in order to detect operating systems, sessions, hostnames, open ports etc. without putting any traffic on the network. NetworkMiner can also parse PCAP files for off-line analysis and to regenerate/reassemble transmitted files and certificates from PCAP files. Wi-Fi Protected Setup Flaws Make Wireless Network Brute-force Attacks Feasible Design flaws in the Wi-Fi Protected Setup (WPS) wireless standard can make it easier for attackers to obtain access codes for secured wireless networks by brute force. The vulnerabilities identified by security researcher Stefan Viehbock affect a large number of WPS-enabled routers and wireless access points. The WPS standard was created in 2007 by the Wi-Fi Alliance in order to provide non-technical users with a simple method of setting up wireless networks. The standard supports several Wi-Fi authentication methods including one that requires pushing a physical button on the router and one that uses a predefined PIN number printed on a sticker by the device manufacturer. The PIN-based method is mandatory for WPS-certified devices, which support it by default.
How To Detect Remove DNS Changer Malware Trojan.DNSchanger And Repair DNS Server Settings (PC and Mac) DNSChanger Malware: Detection And Repair This article is in reference to Rover Digital, often referred to as: Trojan.DNSchanger, DNSChanger malware or the Doomsday Virus. Last November (2011) the FBI arrested several cyber criminals who distributed Rover Digital DNS Server malware. List of Rainbow Tables This page lists the rainbow tables we generated. LM rainbow tables speed up cracking of password hashes from Windows 2000 and Windows XP operating system. NTLM rainbow tables speed up cracking of password hashes from Windows Vista and Windows 7 operating system. MD5 and SHA1 rainbow tables speed up cracking of MD5 and SHA1 hashes, respectively.
Password recovery procedure - Cisco Aironet 1100 or 1200 Access Point (AP) running Cisco IOS Software Introduction Password recovery procedure - Cisco Aironet 1100 or 1200 Access Point (AP) running Cisco IOS Software Core Issue Passwords on Cisco Aironet access points are not recoverable Resolution If you forget the password on a Cisco Aironet Access Point, you have to completely reset the configuration to factory defaults. Storing Passwords - done right! Written by: Christoph Wille Translated by: Bernhard Spuida First published: 1/5/2004 Viewed 257725 times. 1766 ratings, avg. grade 4.76 In very many - not to say almost all - Web applications user data is administered, from Web forum to Web shop. These user data encompass login information of the users which contain the password besides the user name - and this in plain text.
Spot Malware on Your Windows Hosts with netstat netstat gives you some of the tools you need to spot and eliminate any malicious software listening for network connections on your Windows hosts. Is there a bot or Trojan horse listening for incoming connections on your Windows domain controller right now? Having the skills necessary to answer that question is essential for any Windows server administrator.
InfoSec Handlers Diary Blog - Hashing Passwords After talking about SQL Injection, this is the second part of the mini series to help you protect yourself from simple persistent attacks as we have seen them in the last couple months. A common MO employed in these attacks is to steal passwords from a database via sql injection. Later, the attacker will try to use these passwords to break into other sites for which users may choose the same password. Of course, part of the problem is password reuse. But for now, we will focus on the hashing of passwords to make it harder for an attacker to retrieve a users plain text password.
Difference between WEP, WPA and WPA2 (Which is Secure) BESbswyBESbswy AddThis What's Next Recommended for you www.guidingtech.com AddThis