FakeNet - Windows Network Simulation tool for Malware Analysis

FakeNet is a tool that aids in the dynamic analysis of malicious software.  The tool simulates a network so that malware interacting with a remote host continues to run allowing the analyst to observe the malware’s network activity from within a safe environment.  The goal of the project is to:

1. Be easy to install and use; the tool runs on Windows and requires no 3rd party libraries
2. Support the most common protocols used by malware
3. Perform all activity on the local machine to avoid the need for a second virtual machine
4. Provide python extensions for adding new or custom protocols
5. Keep the malware running so that you can observe as much of its functionality as possible
6. Have a flexible configuration, but no required configuration

The tool is in its infancy of development.  We started working on the tool in January 2012 and we intend to maintain the tool and add new and useful features.  If you find a bug or have a cool feature you think would improve the tool please contact us.

Features

• Supports DNS, HTTP, and SSL
• HTTP server always serves a file and tries to serve a meaningful file; if the malware request a .jpg then a properly formatted .jpg is served, etc.  The files being served are user configurable.
• Ability to redirect all traffic to the localhost, including traffic destined for a hard-coded IP address.
• Python extensions, including a sample extension that implements SMTP and SMTP over SSL.
• Built in ability to create a capture file (.pcap) for packets on localhost.
• Dummy listener that will listen for traffic on any port, auto-detect and decrypt SSL traffic and display the content to the console.

Demo Video

Click here to watch a demo of version 0.9 of the tool in action.

How it works

FakeNet uses a variety of Windows and third party libraries.  It uses a custom HTTP and DNS server to respond to those request.  It uses OpenSSL to wrap any connection with SSL.  It uses a Winsock Layered Service Provider (LSP) to redirect traffic to the localhost and to listen for traffic on new ports.  It uses python 2.7 for the python extensions.  And, it creates the .pcap file by reconstructing a packet header based on the traffic from send/recv calls.

Download FakeNet

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Collection of Heartbleed Tools (OpenSSL CVE-2014-0160)

• A checker (site and tool) for CVE-2014-0160: https://github.com/FiloSottile/Heartbleed
• ssltest.py: Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford http://pastebin.com/WmxzjkXJ
• SSL Server Test https://www.ssllabs.com/ssltest/index.html
• Metasploit Module: https://github.com/rapid7/metasploit-framework/pull/3206/files
• Nmap NSE script: Detects whether a server is vulnerable to the OpenSSL Heartbleed: https://svn.nmap.org/nmap/scripts/ssl-heartbleed.nse
• Nmap NSE script: Quick'n'Dirty OpenVAS nasl wrapper for ssl_heartbleed based on ssl_cert_expiry.nas https://gist.github.com/RealRancor/10140249
• Heartbleeder: Tests your servers for OpenSSL: https://github.com/titanous/heartbleeder?files=1
• Heartbleed Attack POC and Mass Scanner: https://bitbucket.org/fb1h2s/cve-2014-0160
• Heartbleed Honeypot Script: http://packetstormsecurity.com/files/126068/hb_honeypot.pl.txt

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[SSLSmart] Smart SSL Cipher Enumeration

SSLSmart is a highly flexible and interactive tool aimed at improving efficiency and reducing false positives during SSL testing. A number of tools allow users to test for supported SSL ciphers suites, but most only provide testers with a fixed set of cipher suites. Further testing is performed by initiating an SSL socket connection with one cipher suite at a time, an inefficient approach that leads to false positives and often does not provide a clear picture of the true vulnerability of the server. SSLSmart is designed to combat these shortcomings.

SSLSmart has been tested to work on the following platforms and versions of Ruby:

Windows: Ruby 1.8.6 with wxruby6 (2.0.0) and builder7 (2.1.2).

Linux: Ruby 1.8.7/1.9.1 with wxruby (2.0.0) and builder (2.1.2).

Download SSLSmart

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[SSL Audit] Remotely scans web servers for SSL support

SSL Audit remotely scans web servers for SSL support, unlike other tools it is not limited to ciphers supported by SSL engines such as OpenSSL or NSS but can detect all known cipher suites. It features an innovative Fingerprinting engine that was never seen before.

Fingerprint mode (Experimental)

Included is an experimental fingerprint engine that tries to determine the SSL Engine used server side. It does so by sending normal and malformed SSL packets that can be interpreted in different ways. 

SSL Audit is able to fingerprint :

· IIS7.5 (Schannel) 

· IIS7.0 (Schannel) 

· IIS 6.0 (Schannel) 

· Apache (Openssl) 

· Apache (NSS) 

· Certicom 

· RSA BSAFE 

Known issues:· FP on SSLv2 (needs seperated HTTPS request to verify) · No way to export results

Documentation

Download SSL Audit

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[SSLDigger v1.02] Tool to assess the strength of SSL

SSLDigger v1.02 is a tool to assess the strength of SSL servers by testing the ciphers supported. Some of these ciphers are known to be insecure.

Features:

• full Browser Support using Microsoft Internet Explorer Browser Control
• support for operating the tool in batch modefor operating on multiple sites simultaneously
• the tool supports reporting in three different formats:XXL,CSV,HTML
• limited support for Server Gated Cryptography.

System Requirements

Windows .NET Framework (can be installed using Windows Update)

Download SSLDigger v1.02

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[Harden SSL/TLS] Hardening the SSL/TLS settings

“Harden SSL/TLS” allows hardening the SSL/TLS settings of Windows 2000,2003,2008,2008R2, XP,Vista,7. It allows locally and remotely set SSL policies allowing or denying certain ciphers/hashes or complete ciphersuites. 

This tool specific allows setting policies with regards to what ciphers and protocols are available to applications that use SCHANNEL crypto interface. A lot of windows applications do use this interface, for instance Google Chrome as well as Apple Safari are a few of these. By changing the settings you can indirectly control what ciphers these applications are allowed to use.

Advanced mode 

· re-enable ECC P521 mode on Windows7 and 2008R2

· Set TLS Cache size and timeout

Known issues:· The BETA initialises and sets the OS defaults at startupChangelog :· Fixed Protocol initialization on Vista/Seven/2008/2008R2 (Adrian F. Dimcev) · Fixed TLS 1.1 on Vista/2008 (Reported by Adrian F. Dimcev)

Documentation

Download Harden SSL/TLS

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[sslnuke] SSL without verification isn't secure!

We have all heard over and over that SSL without verification is not secure. If an SSL connection is not verified with a cached certificate, it can easily be hijacked by any attacker. So in 2013, one would think we had totally done away with this problem. Browsers cache certificates and very loudly warn the user when a site has offered up a self-verified certificate and should not be trusted, browser vendors have pretty much solved this problem. However, HTTPS is not the only protocol that uses SSL. Unfortunately, many clients for these other protocols do not verify by default and even if they did, there is no guarantee of secure certificate transfer. After all, how many people are willing to pay $50 for an SSL certificate for their FTPS server?

A common protocol that uses SSL but is rarely verified is IRC. Many IRC clients verify by default, but most users will turn this off because IRC servers administrators tend not to purchase legitimate SSL certificates. Some popular clients even leave SSL verification off by default (IRSSI, for example). We already know that this is unwise, any attacker between a user and the IRC server can offer an invalid certificate and decrypt all of the user's traffic (including possibly sensitive messages). Most users don't even consider this fact when connecting to an SSL "secured" IRC server.

The purpose of sslnuke is to write a tool geared towards decrypting and intercepting "secured" IRC traffic. There are plenty of existing tools that intercept SSL traffic already, but most of these are geared towards HTTP traffic. sslnuke targets IRC directly in order to demonstrate how easy it is to intercept "secured" communications. sslnuke usage is simple.

Download sslnuke

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[HoneyProxy] A man-in-the-middle SSL Proxy & Traffic Analyzer

HoneyProxy is a lightweight tool that allows live HTTP(S) traffic inspection and analysis.

It focuses on features that are useful for malware analysis and network forensics.

Features

• Analyze HTTP(S) traffic on the fly
• Filter and highlight traffic, regex support included.
• Report Generation for saved flows, including a live JS editor.
• Save HTTP conversations for later analysis
• Make scripted changes with Python, e.g. remove Cache Header.
• based on and compatible to mitmproxy.
• cross-platform (Windows, OSX and Linux)
• SSL interception certs generated on the fly

Looking for more? Check out our GitHub wiki!

 

Quick Start

Download the latest release or pick a development snapshot.

Install all dependencies: pip install pyOpenSSL pyasn1 Twisted Autobahn
Windows users: Install the binaries for pyOpenSSL and Twisted manually (or compile yourself).
Ubuntu / Debian users: Install twisted as a package (sudo apt-get install python-twisted). If you get errors, check this page.

Start HoneyProxy with python honeyproxy.py or python honeyproxy.py --help.
If you don't use a modern browser, a kitten will die. We support both Firefox and Chrome!
Most command line parameters are documented in the mitmproxy docs.

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[SSLyze v0.6] SSL Server Configuration Scanning Tool

SSLyze is a Python tool that can analyze the SSL configuration of a server by connecting to it. It is designed to be fast and comprehensive, and should help organizations and testers identify misconfigurations affecting their SSL servers.

Features

• SSL 2.0/3.0 and TLS 1.0/1.1/1.2 compatibility
• Performance testing: session resumption and TLS tickets support
• Security testing: weak cipher suites, insecure renegation, CRIME and THC-SSL DOS attacks
• Server certificate validation
• Support for StartTLS with SMTP and XMPP, and traffic tunneling through an HTTPS proxy
• Client certificate support for servers performing mutual authentication
• Scan results can be written to an XML file for further processing

New in v0.6:

• Added support for Server Name Indication; see –sni
• Partial results are returned when the server requires client authentication but no client certificate was provided
• Preliminary IPv6 support
• Various bug fixes and better support of client authentication and HTTPS tunneling

You can download SSLyze v0.6 here:

Linux/OSX – sslyze-0.6_src.zip
Windows 7/Python 32-bit – sslyze-0.6_Windows7_Python32.zip
Windows 7/Python 64-bit – sslyze-0.6_Windows7_Python64.zip

Or read more here.

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[SSL Certificate Downloader] Command-line Tool to grab SSL Certificate from Server Remotely

SSL Cert Downloader is a free command-line tool to grab SSL certificate from server remotely.

It can be used to download certificate from any of the SSL enabled services including

• HTTPS (443)
• LDAPS (636)
• SMTPS (465)
• POPS (995)
• IMAPS (993)

You can either specify IP address or host name of the server. Also you can enter any custom port which makes it useful when SSL service is running on non-standard port.

Once the certificate is downloaded from the server it will be saved to the specified file. Later you can just double click on the saved file to view the SSL certificate.

It is very easy to use and being a command-line tool makes it easy for automation through scripting.

It is fully portable and works on all platforms starting from Windows XP to Windows 8.

Download SSL Cert Downloader v1.0

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