Evilgophish | Evilginx2 + Gophish

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Ruchika oberoi

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Mar 27, 2022
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Table of Contents​

evilgophish​

Combination of and .

Credits​

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

Tokens gophish

Infrastructure Layout​

Diagram

  • 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):

Usage:
./setup <root domain> <subdomain(s)> <root domain bool> <redirect url> <feed bool> <rid replacement> <blacklist bool>
- root domain - the root domain to be used for the campaign
- subdomains - a space separated list of evilginx2 subdomains, can be one if only one
- root domain bool - true or false to proxy root domain to evilginx2
- redirect url - URL to redirect unauthorized Apache requests
- feed bool - true or false if you plan to use the live feed
- rid replacement - replace the gophish default "rid" in phishing URLs with this value
- blacklist bool - true or false to use Apache blacklist
Example:
./setup.sh example.com "accounts myaccount" false true user_id false

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:

New dashboard

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:
Sms message template

  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:
Sms sending profile

  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:
Twilio number formats

  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: . The feed dashboard will look like below:
Live feed

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 .

  1. o3652 - modified/updated version of the original o365 (stolen from )
  2. google - updated from previous examples online (has issues since release, don’t use in live campaigns)
  3. knowbe4 - custom

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.

A Note About Campaign Testing And Tracking​

It is not uncommon to test the tracking for a campaign before it is launched and I encourage you to do so, I will just leave you with a warning. evilginx2 will create a cookie and establish a session for each new victim’s browser. If you continue to test multiple campaigns and multiple phishing links within the same browser, you will confuse the tracking process since the RId value is parsed out of requests and set at the start of a new session. If you are doing this, you are not truly simulating a victim as a victim would never have access to another phishing link besides their own and goes without saying that this will never happen during a live campaign. This is to fair warn you not to open an issue for this as you are not using the tool the way it was intended to be used. If you would like to simulate a new victim, you can test the tracking process by using a new browser/tab in incognito mode.

A Note About The Blacklist and Tracking​

The Apache blacklist is now optional. If you decide to use it, it may cause some clients to get blocked and disrupt the tracking process. The reason being is organizations may request links through a proxy falling in blocked ranges. It is up to you to perform test campaigns and verify if any blocking will disrupt your campaign tracking. A blocked client will receive a 403 Forbidden error. /var/log/apache2/access_evilginx2.log* can be viewed for remote IP addresses accessing the phishing server. You can remove entries in the /etc/apache2/blacklist.conf file that are causing a tracking issue and restart Apache. Or you can remove the Location block in the /etc/apache2/sites-enabled/000-default.conf file and restart Apache to remove IP blacklisting altogether. Users have also reported issues with setting evilginx2’s built-in blacklist feature to unauth.

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)
  6. Added phishlets

Changes to GoPhish​

  1. All X headers relating to GoPhish have been removed throughout the code (to remove IOCs)
  2. Default rid string in phishing URLs is chosen by the operator in setup.sh
  3. Added SMS Campaign Support

Changelog​

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

Issues and Support​

I am mostly looking for legitimate bugs in code or enhancement opportunities and not to be a personal help desk support for struggles during your setup. You should understand the prerequisites of setting up a social engineering campaign including how Apache, DNS, SSL certificates, evilginx2, gophish, and proxies work to use and setup this tool. With that being said, issues falling into these categories will be closed. I am taking the same stance as 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. However, I will maintain certain phishlets at will (see ). I will state for the record that tracking for this project works as advertised and if it does not, it is a result of a misconfiguration during setup.sh or you are confusing the tool by visiting multiple RIds within the same browser session. Do not open an issue for this or it will be closed (see ). If you open an issue, please provide as much detailed information as possible about the issue including output pertaining to the issue. Issues with lack of detail or output will be closed.

Future Goals​

  • Test/review/pull evilginx3 when it releases
  • Additions to IP blacklist and redirect rules
  • Add more phishlets

GitHub:​

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Evilgophish

evilginx2 + gophish. Contribute to fin3ss3g0d/evilgophish development by creating an account on GitHub.