Evilgophish - Evilginx2 + Gophish

Admin November 07, 2022


Combination of evilginx2 and GoPhish.

Credits

Before I begin, I would like to say that I am in no way bashing Kuba Gretzky and his work. I thank him personally for releasing evilginx2 to the public. In fact, without his work this work would not exist. I must also thank Jordan Wright for developing/maintaining the incredible GoPhish toolkit.

Prerequisites

You should have a fundamental understanding of how to use GoPhish, evilginx2, and Apache2.


Disclaimer

I shall not be responsible or liable for any misuse or illegitimate use of this software. This software is only to be used in authorized penetration testing or red team engagements where the operator(s) has(ve) been given explicit written permission to carry out social engineering.

Why?

As a penetration tester or red teamer, you may have heard of evilginx2 as a proxy man-in-the-middle framework capable of bypassing two-factor/multi-factor authentication. This is enticing to us to say the least, but when trying to use it for social engineering engagements, there are some issues off the bat. I will highlight the two main problems that have been addressed with this project, although some other bugs have been fixed in this version which I will highlight later.

  1. Lack of tracking - evilginx2 does not provide unique tracking statistics per victim (e.g. opened email, clicked link, etc.), this is problematic for clients who want/need/pay for these statistics when signing up for a social engineering engagement.
  2. Session overwriting with NAT and proxying - evilginx2 bases a lot of logic off of remote IP address and will whitelist an IP for 10 minutes after the victim triggers a lure path. evilginx2 will then skip creating a new session for the IP address if it triggers the lure path again (if still in the 10 minute window). This presents issues for us if our victims are behind a firewall all sharing the same public IP address, as the same session within evilginx2 will continue to overwrite with multiple victim's data, leading to missed and lost data. This also presents an issue for our proxy setup, since localhost is the only IP address requesting evilginx2.

Background

In this setup, GoPhish is used to send emails and provide a dashboard for evilginx2 campaign statistics, but it is not used for any landing pages. Your phishing links sent from GoPhish will point to an evilginx2 lure path and evilginx2 will be used for landing pages. This provides the ability to still bypass 2FA/MFA with evilginx2, without losing those precious stats. Apache2 is simply used as a proxy to the local evilginx2 server and an additional hardening layer for your phishing infrastructure. Realtime campaign event notifications have been provided with a local websocket/http server I have developed and full usable JSON strings containing tokens/cookies from evilginx2 are displayed directly in the GoPhish GUI (and feed):

Infrastructure Layout

  • evilginx2 will listen locally on port 8443
  • GoPhish will listen locally on port 8080 and 3333
  • Apache2 will listen on port 443 externally and proxy to local evilginx2 server
    • Requests will be filtered at Apache2 layer based on redirect rules and IP blacklist configuration
      • Redirect functionality for unauthorized requests is still baked into evilginx2 if a request hits the evilginx2 server

setup.sh

setup.sh has been provided to automate the needed configurations for you. Once this script is run and you've fed it the right values, you should be ready to get started. Below is the setup help (note that certificate setup is based on letsencrypt filenames):

Redirect rules have been included to keep unwanted visitors from visiting the phishing server as well as an IP blacklist. The blacklist contains IP addresses/blocks owned by ProofPoint, Microsoft, TrendMicro, etc. Redirect rules will redirect known "bad" remote hostnames as well as User-Agent strings.

replace_rid.sh

In case you ran setup.sh once and already replaced the default RId value throughout the project, replace_rid.sh was created to replace the RId value again.

Usage:
./replace_rid <previous rid> <new rid>
 - previous rid      - the previous rid value that was replaced
 - new rid           - the new rid value to replace the previous
Example:
  ./replace_rid.sh user_id client_id

Email Campaign Setup

Once setup.sh is run, the next steps are:

  1. Start GoPhish and configure email template, email sending profile, and groups
  2. Start evilginx2 and configure phishlet and lure (must specify full path to GoPhish sqlite3 database with -g flag)
  3. Ensure Apache2 server is started
  4. Launch campaign from GoPhish and make the landing URL your lure path for evilginx2 phishlet
  5. PROFIT

SMS Campaign Setup

An entire reworking of GoPhish was performed in order to provide SMS campaign support with Twilio. Your new evilgophish dashboard will look like below:

Once you have run setup.sh, the next steps are:

  1. Configure SMS message template. You will use Text only when creating a SMS message template, and you should not include a tracking link as it will appear in the SMS message. Leave Envelope Sender and Subject blank like below:

  1. Configure SMS Sending Profile. Enter your phone number from Twilio, Account SID, Auth Token, and delay in between messages into the SMS Sending Profiles page:

  1. Import groups. The CSV template values have been kept the same for compatibility, so keep the CSV column names the same and place your target phone numbers into the Email column. Note that Twilio accepts the following phone number formats, so they must be in one of these three:

  1. Start evilginx2 and configure phishlet and lure (must specify full path to GoPhish sqlite3 database with -g flag)
  2. Ensure Apache2 server is started
  3. Launch campaign from GoPhish and make the landing URL your lure path for evilginx2 phishlet
  4. PROFIT

Live Feed Setup

Realtime campaign event notifications are handled by a local websocket/http server and live feed app. To get setup:

  1. Select true for feed bool when running setup.sh

  2. cd into the evilfeed directory and start the app with ./evilfeed

  3. When starting evilginx2, supply the -feed flag to enable the feed. For example:

./evilginx2 -feed -g /opt/evilgophish/gophish/gophish.db

  1. You can begin viewing the live feed at: http://localhost:1337/. The feed dashboard will look like below:

IMPORTANT NOTES

  • The live feed page hooks a websocket for events with JavaScript and you DO NOT need to refresh the page. If you refresh the page, you will LOSE all events up to that point.

Phishlets Surprise

Included in the evilginx2/phishlets folder are three custom phishlets not included in evilginx2.

  1. o3652 - modified/updated version of the original o365 (stolen from Optiv blog)
  2. google - updated from previous examples online (has issues, don't use in live campaigns)
  3. knowbe4 - custom (don't have access to an account for testing auth URL, works for single-factor campaigns, have not fully tested MFA)

A Word About Phishlets

I feel like the world has been lacking some good phishlet examples lately. It would be great if this repository could be a central repository for the latest phishlets. Send me your phishlets at fin3ss3g0d@pm.me for a chance to end up in evilginx2/phishlets. If you provide quality work, I will create a Phishlets Hall of Fame and you will be added to it.

Changes To evilginx2

  1. All IP whitelisting functionality removed, new proxy session is established for every new visitor that triggers a lure path regardless of remote IP
  2. Fixed issue with phishlets not extracting credentials from JSON requests
  3. Further "bad" headers have been removed from responses
  4. Added logic to check if mime type was failed to be retrieved from responses
  5. All X headers relating to evilginx2 have been removed throughout the code (to remove IOCs)

Changes to GoPhish

  1. All X headers relating to GoPhish have been removed throughout the code (to remove IOCs)
  2. Custom 404 page functionality, place a .html file named 404.html in templates folder (example has been provided)
  3. Default rid string in phishing URLs is chosen by the operator in setup.sh
  4. Transparency endpoint and messages completely removed
  5. Added SMS Campaign Support

Changelog

See the CHANGELOG.md file for changes made since the initial release.

Issues and Support

I am taking the same stance as Kuba Gretzky and will not help creating phishlets. There are plenty of examples of working phishlets and for you to create your own, if you open an issue for a phishlet it will be closed. I will also not consider issues with your Apache2, DNS, or certificate setup as legitimate issues and they will be closed. However, if you encounter a legitimate failure/error with the program, I will take the issue seriously.

Future Goals

  • Additions to IP blacklist and redirect rules
  • Add more phishlets

Contributing

I would like to see this project improve and grow over time. If you have improvement ideas, new redirect rules, new IP addresses/blocks to blacklist, phishlets, or suggestions, please email me at: fin3ss3g0d@pm.me or open a pull request.




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