ACSIA Help Center

ACSIA XDR Plus Installation and User Administration Guide - v6.0.0

Nadia Riccardi
Nadia Riccardi
  • Updated

 This guide applies only to ACSIA XDR Plus version 6.0.0.

 

1. Preface

This guide will walk you through the prerequisites to install ACSIA, product installation and configuration details, administration, troubleshooting deployment and Frequently Asked Questions.

 


 

2. What is ACSIA XDR Plus?

ACSIA is an Automated Cyber Security Intelligence Application which enables organizations to protect themselves against malicious attacks and unauthorized entities targeting their data.

 


3. Installation and Configuration

Like any other software application, ACSIA needs some preliminary requirements to be satisfied to communicate with connected clients and perform its tasks.

 

3.1. Prerequisites

3.1.1. Minimum Requirements

ACSIA Server platform requires the following minimum specs:

  • The server can be deployed in a physical or virtual environment 
  • In the case of a virtual environment, the server will need a Virtual Machine, and it can run on every hypervisor of choice (VMWare, HyperV, VirtualBox, Proxmox, etc...) but not on containers (Docker, Kubernetes, LXD, LXC, Vagrant, etc...)
  • Any Linux distributions can be used.

  • 16 GB RAM (on virtual environments, they must be dedicated)

  • 8 vCPU

  • 200 GB Storage SSD (as a minimum depending on retention policy)

  • Network connectivity (to download and install the server, receive our threat intelligence feeds, connect with the clients, upgrade the system and verify the license)
  • Partitioning: There is no specific partitioning required for ACSIA VM; however, when ACSIA is hosted on-prem (outside cloud platforms), it is strongly recommended to set up an LVM partition so the storage can be easily extended

To perform the installation it's required full internet connectivity. Once the installation is completed you can reduce the connectivity only to the URLs indicated in the following table.

 

Source Destination Protocol Port Note
ACSIA Server wimi.xdrplus.com TCP 443 Public IP and Latest Release
ACSIA Server license.acsia.io TCP 5150 License Activation (TLS Enabled)
ACSIA Server nexus.acsia.io TCP 443 Download Updates


The connectivity is required at all times (private and public keypair verification for license), although ACSIA allows up to 48 hours of connection loss before it enters an unlicensed state. The only exception to this requirement is where ACSIA is deployed from Amazon AWS Marketplace.

The specification above would support a typical standard workload of 100+ monitored hosts. ACSIA scales relatively linearly, so additional resources will support larger client environments.

ACSIA Client (with the agent) requires the following minimum specs:

  • The agent can be deployed on every OS (even in VMs), but we strongly advise using updated systems and that our support can be limited on operating systems that the respected vendors do not officially support
  • Currently, we don't have any minimum requirements for CPU, RAM and Storage because our agents are highly lightweight in terms of hardware consumption. We suggest performing the installation on a machine with at least 2GB of free space.
  • It works with every OS (Linux with kernel later than the version 2.6 and every version of Windows and macOS
  • Network connectivity toward ACSIA Server (as specified below)

 

3.1.2. Web UI Network ports

To access ACSIA’s Web UI, you will need to open the following ports between your workstation (Laptop/Desktop/PC) and the ACSIA server:

 

Source Destination Protocol Port Note
Any PC that manages ACSIA ACSIA Server's IP TCP 443 Used for HTTPS
ACSIA Server's IP license.acsia.io TCP 5150 License Activation

 

3.1.3. ACSIA client-server ports using Agent installation

If you choose to deploy the ACSIA agent on the clients (servers or workstations), the only requirement for the agent to be able to communicate with the ACSIA server is the TCP port 443 (HTTPS) and 444 (TCP/UDP). If these ports are not open, please make sure to have them opened. 

 

Source Destination Protocol Port Note
Any host with the ACSIA Agent ACSIA Server's IP TCP 443 Used for Connections
Any host with the ACSIA Agent ACSIA Server's IP TCP & UDP 444 Used for Pulls
Any host with the ACSIA Agent wimi.xdrplus.com TCP 443 Used to pull the IP

 

3.1.4. ACSIA Proxy configuration - Only if you have Proxy

If you have a proxy and your servers (ACSIA VM and your server to be monitored) for your servers to go out on the internet, please apply the following instructions.


3.1.4.1. Setting Up Permanent Proxy for All Users

To permanently set up proxy access for all users, you have to edit the /etc/environment file.

 

Step 1 - First, open the file in a text editor:

sudo nano /etc/environment

Step 2 - Next, update the file with the same information you added to the .bashrc file in the previous scenario:

export HTTP_PROXY="[username]:[password]@[proxy-web-or-IP-address]:[port-number]"
export HTTPS_PROXY="[username]:[password]@[proxy-web-or-IP-address]:[port-number]"
export FTP_PROXY="[username]:[password]@ [proxy-web-or-IP-address]:[port-number]"
...
export NO_PROXY="localhost,127.0.0.1,::1"

Step 3 - Save the file and exit. The changes will be applied the next time you log in.

 

3.1.4.2. Setting Up Proxy for APT

On some systems, the apt command-line utility needs a separate proxy configuration, because it does not use system environment variables.

Step 1 - To define proxy settings for apt, create or edit (if it already exists) a file named apt.conf in /etc/apt directory:

sudo nano /etc/apt/apt.conf 

Step 2 - Add the following lines to the file:

Acquire::http::Proxy "http://[username]:[password]@ [proxy-web-or-IP-address]:[port-number]";
Acquire::https::Proxy "http://[username]:[password]@ [proxy-web-or-IP-address]:[port-number]";

Step 3 - Save the file and exit. The configuration will be applied after a reboot.

 

The option NO_PROXY, in addition to what is specified above as parameters, you will need to add your internal networks and subnets where the monitored devices are located (your servers or PCs network). Otherwise, you will have connectivity issues between ACSIA and those networks when you try to add them to the services to be monitored by ACSIA. This is because the proxy will be unlikely to be able to reach out to those networks.

 

Any changes affecting the above variables must be notified to ACSIA via configureHttpProxy command followed by acsia_restart (this is for when ACSIA installation is already completed).

 

3.2. ACSIA Server installation

Prepare a Linux VM (i.e. Ubuntu 20.04 is currently supported, please check release notes for ACSIA) to host the ACSIA server and ensure the system is up to date.

In order to install ACSIA some prerequisites need to be satisfied. You can execute our ARM script to make sure that alle the prerequisites are in place. You'll find more information in our article: Pre-ACSIA Installation Minimum Requirements Check with AMR.

Once all your prerequisites have been satisfied, the installation of ACSIA can begin. If the requirements for the installation are not satisfied, the installation will fail, and you will be provided with an explanation of which prerequisites were not met.

 

Customers with a valid ACSIA license will receive an installation package from the 4Securitas Support team to download the main installation script acsia_prepare, and an additional file containing credentials, including the license.

 

Please, make sure that the acsia_prepare.sh script you want to execute is the one provided in this article. The previous one is unsupported.

 

Please strictly follow the instructions provided in this guide to install the ACSIA Server-client configuration.

 

3.2.1. Getting Started with the Installation of ACSIA Server

Login into the newly provisioned VM for the ACSIA server, switch to root user, copy the and the acsia_prepare.sh and credentials.txt that is being provided to you.
Execute the acsia_prepare as follows, make sure the script is executable using the command:
chmod +x acsia_prepare
and then executing: 
./acsia_prepare

 

Follow the instructions provided on your screen, and when complete, execute the following:

./acsia_app/bin/acsia_install

 

If all preliminary requirements are satisfied as per the guidelines, the ACSIA server will be fully installed in about ~5-6 minutes.

In case of any issue, please refer to the Troubleshooting section in this guide, check our advanced troubleshooting guides in our Knowledge Base or contact our support team by raising a ticket from this portal. When requesting support, please provide as much information as possible (i.e. screenshots, logs, etc.); every detail will help us troubleshoot your incident faster.

At the end of the installation process, you should have on your terminal the credentials for the first admin user to login into web UI, something like the following:

ACSIA web and Dashboards
Admin interface: https://192.168.1.246:443
Username: admin@acsia.io
Password: kzuh21ybnsdy1=ui12b5!2iutRIf123kjojb

Once the server installation finishes, the client installation will continue in the background (the ACSIA server becomes the first client to be monitored). Please wait for the engine to initialize upon client install completion.

We strongly suggest changing the generated passwords with new ones as soon as possible and storing them properly.

To check the progress status for the initialization of ACSIA run:

acsia_tail_f

If you are receiving the error acsia_tail_f: command not found it means that you are not using the correct user so please run:

sudo su - acsia

This will change your account in the acsia one, allowing you to run all the necessary commands.

 

After the client's installation is completed, you should see the following message in acsia_tail_f:

2022-07-10 15:52:21.254 INFO 29440 --- [main] com.forsecuritas.AcsiaLauncher : *************** SPRING APPLICATION RUNNING *************************

The above message indicates that the engine is ready and up and running. Now you can log in to the web UI with the credentials provided and activate the license first thing as soon as logged in.

acsia-tail-f.gif

To do so, go to Settings > License > Insert Activation Code. Then you need to change the admin user immediately. You have to create a new user (put your own e-mail and give admin permission), create a new password (directly in the UI), log out, log back in with the new user created and delete the admin user already present in the UI. 

After the installation is completed, it is strictly necessary to have all ACSIA service commands available to log out from the running session and log back in again, so the environment variables can be all loaded.

 


 

4. ACSIA Service Commands

As mentioned above, all of ACSIA’s service commands, including the start/stop services as well as troubleshooting tips, can be found in the /acsia_app/bin folder in $ACSIA_HOME.

Below are some frequently used service commands. 

Check if all of ACSIA services running:
acsia_stack_status
 
Start ACSIA all services:
acsia_stack_start
 
Stop ACSIA all services:
acsia_stack_stop
 
Start only ACSIA engine:
acsia_start

Restart ACSIA engine and services:
acsia_stack_restart


Restart ACSIA engine:
acsia_restart

 

 

5. Configuring SSL certificate for ACSIA Web Application

By default, ACSIA generates self-signed SSL certificates for secure browsing. The self-signed certs are configured using ACSIA IP addresses (external or local if provided). If you wish to configure ACSIA with a proper CA and have your own SSL certificate, you can do that either during the installation of ACSIA or at a later stage. ACSIA requires the certificate and the key to be provided in two files - the private key and the public certificate (both to be .pem formatted).

  1. Deploy the cert during the installation: when installing ACSIA, using the acsia_install the script simply adds the extra command-line parameters such as: --certificate /path/to/cert.pem--key /path/to/key.pem and --domain my.domain.com. All three must be present, or the installer will exit with an error.
  2. Post-install deployment: a new script acsia_deploy_ssl_certs has been provided and accepts the same parameters as per the previous step --certificate--key, and --domain. Once these have been deployed, you will need to execute acsia_stack_restart for all components to pick up these newly added certificates.

If you don't want to buy SSL certificates you can use Let's Encrypt with Certbot; however these instructions are not provided in this guide, so we advise you to check on the respective websites.

 


 

6. Updating ACSIA

Updating ACSIA is reasonably easy and straightforward.

To update, all you need to do is to run the following command in the terminal as acsia user:

acsia_update

 

This command is only valid to update from version 5 until 5.9.9. To update to version 6.0.0. you need to run the pre-update script provided in chapter 3.2.


You will require your ACSIA username and passwords to get updates. These credentials are usually supplied within the same email where you receive your license instructions.

We recommend performing the ACSIA updates from the terminal instead of using the Web UI update feature. This provides greater clarity and control of the process with more granular error code information. Major releases of ACSIA will generally include core tool upgrades. We, therefore, recommend a full-stack stop and start when performing these upgrades. You can do this by running the command:  acsia_stack_stop && acsia_stack_start

 


 

7. Access to OpenDashboard

The OpenSearch visualizer OpenDashboard is part of the ACSIA stack. To access OpenDashboard applications and dashboards, password user and authentication are needed. Users must present their ACSIA username/password whenever they attempt to view the Dashboards. The username and password are automatically generated from ACSIA Web UI login credentials.

 


 

8. Preparing Your Servers to be Connected to ACSIA

ACSIA supports both Linux, Windows and MAC OS operating systems.

8.1. Preliminary Requirements

If your IT infrastructure is hosted on Google Cloud (Metadata Page), you can skip the following steps by adding ACSIA ssh-keys to your project from the Google console. AWS has a similar setup that can be done via OpsWorks.

8.2. Deploying ACSIA via an agent

For all Linux, Windows and MAC OS clients where you have chosen to install Client Agent, all you need to do is to navigate in ACSIA Web UI Hosts→Add Host, select the operating system, i.e. Linux, Windows or MAC, and download it. 

Please be aware that agents will not be related to a single client, meaning the same agent downloaded from UI can be used for multiple hosts. The agent will last 7 days from the download. After these days have passed, you will have to download it again. 

8.2.1. Connecting a Linux/Mac Client

Requirements

  • Kernel 2.6 or later

  • Python 2.7 or later

  • User account acsia with Sudo privileges

 

linux_agent.gif

 

Copy the downloaded agent to the client device for the installation and execute as root on Linux/MAC. 

To install the client the procedure should be the following:

  • Download a .txt file (Acsia-Linux-Agent.txt or Acsia-Mac-Agent.txt) from the UI.
    You can do so by clicking “Add Linux”/"Add Mac" and then “Use the Agent” and “Download Agent”. 
  • Create the Acsia-Linux-Agent.txt/Acsia-Mac-Agent.txt file (with nano or vim), make it executable with this command:
    chmod +x Acsia-Linux-Agent.txt 
    or
    chmod +x Acsia-Mac-Agent.txt 
    And run it:
    sudo ./Acsia-Linux-Agent.txt 
    or
    sudo ./Acsia-Mac-Agent.txt

8.2.2. Connecting a Windows Client

To download a Windows client follow the same procedure as per Linux, but select “Add Windows”.

windows_agent2.gif


Connect to an RDP instance machine, search “Windows Powershell ISE” but BEFORE opening it, right click on it and select “Run as an administrator”.
Press CTRL + R, paste the content of the Agent inside the space that just opened and then click on the green icon “Run script”.

Wait until the installation has finished and you’ll receive the output showing the successful installation.

 

8.2.3. Check the Hosts installed

If all prerequisites are in place after installing the agent on your clients, you will see the clients automatically listed (populated) on ACSIA UI in the Hosts section.

Client agents connected to ACSIA server via an API, it doesn’t have user creations requirements or multiple ports to be opened on the firewall (all ports are consolidated into 2 ports which are 443 (TCP) and 444 (UDP/TCP) as per requirements when opting for agent).

ACSIA agents downloaded from UI have tokens that expire after seven days, and each download is valid for multiple devices. If the agent provided to you is not working please generate a fresh agent because it is most likely a token expiration issue related. 

 

 


 

9. User Administration

The user administration section can be found at the bottom of the page, on the left, by clicking on Settings.

 

9.1. Preferences

9.1.1 Automatic Ban

If you’d like ACSIA to handle the majority of threats originating from outside your organisation (i.e. attacks originating from the internet such as BotNet, Bruteforce, Dictionary, SQL injections, XSS attacks etc) then this feature must be enabled.

If enabled, ACSIA will automatically take remediation actions such as banning IP addresses on the spot. You can enable Automatic Ban by navigating in the Settings area and click on the tab Preferences.

9.1.2 Private IP Ban

ACSIA by default cannot ban local IP addresses, this is to avoid any business interruption or similar incidents that will impact business. However, if you’d like to be able to ban local IP addresses you can do this by enabling this feature under the Settings > Preferences tab.

9.1.3 Sysmon - Phase 2

This new feature, if enabled, will automatically block portable executables files (PE) from being written on the disk (for Windows clients and servers only). 

automaticban2.gif

  

9.2. Notifications

9.2.1 Legitimate User Access

This functionality, if enabled, allows you to be notified every time a legitimate user is accessing.

9.2.2 Kernel Notifications

With the kernel level monitoring, once enabled, ACSIA has the ability to intercept the stream of every system call made to the kernel by intercepting the syscalls and searching for anomalies/threats in real-time (this is for Linux systems only).

If you’d like to receive kernel-level notification it is recommended to keep this feature enabled. It can be disabled at any time for those who wish to do so, by navigating to Settings and clicking on Notifications tab.

kernel.png

 

9.3. Integrations

Similar to the email notification, you can also activate notifications to be received through Slack and/or Microsoft Teams. You can enable this in Settings section under integration where you can simply copy the desired webhook (Microsoft Teams or Slack) and activate it to receive notifications via real-time messaging.

In this section, you can also enable/disable the integration with the AntiVirus (BitDefender). 

 

9.3.1. Slack setup instructions (Microsoft Teams is almost the same)

Install incoming webhook on your Slack

  1. Go to Apps

  2. Go to View App directory

  3. Search for incoming-webhook

  4. Go to Add Configuration

  5. At Post to Channel: choose the channel/group where to send the notification

  6. Click Add Incoming WebHooks Integration

  7. Go to Customize Name: Add name i.e. ACSIA Notifier

  8. Copy the WebHook URL

Configure on ACSIA UI:

  1. Access to Web UI

  2. Go to Settings -> Integration

  3. Activate Slack or Microsoft Teams

  4. Paste the URL copied

An example of email and Slack notification is shown below:

blobid2.png

blobid3.png

As we can see in the above screenshot, we have received a notification about successful access using acsia user targeting our pre-production server. Now, we know that a legitimate user is logged in but ACSIA has rightfully notified this is a potential account compromise.

 

This user and location will become legitimate for ACSIA only if we authorize the user with the associated location as legitimate. ACSIA users are to train the ACSIA machine learning module when it comes to legitimate accesses like this one. This is where mostly the user input will be requested by ACSIA. Therefore ACSIA users will need to indicate for the first time, using, that this user is authorized and legitimate. From that moment onward ACSIA will know about that pattern and will no longer notify (unless the account is really compromised).

 

9.3.2. BitDefender Integration

Bitdefender prevents and detects malware infections. This new feature allows ACSIA to deploy Bitdefender on hosts automatically and orchestrate detection.

To enable this integration you will need to buy an additional license. Once BitDefender has been integrated, it cannot be applied to agents that have already been deployed. You need to uninstall the agent, reinstall it, and then you can activate the antivirus. 

 

integrations2.png

 

9.3.3. Amazon AWS Elastic Beanstalk Integration

ACSIA comes with the AWS Elastic Beanstalk Integration feature to monitor applications running within Elastic Beanstalk.

If you have applications running on Elasticbeanstalk and you want ACSIA to monitor and protect them, then run the following command in the terminal: acsia_adapter_beanstalk.py

You will be prompted to provide the following information from your AWS environment:

  • AWS Access Key ID (IAM User)

  • AWS Secret Access Key (IAM User secret)

  • Default region name (Region where Beanstalk is located)

  • Default output format: (can be JSON or text, but JSON is preferred)

  • ACL (Network access control list ID in Beanstalk VPC)

After the above deployment, you will be given an IP address (internal/private IP). The IP address can be retrieved later by running the command: acsia_adapter_ip.sh.

Login onto the ACSIA Web UI Console and add the Linux host using the IP address provided earlier (Getting Started->Start->Linux).

Please note that the deployment might end with some warnings and partial configuration. Do not panic; these warnings may not be severe, and the monitoring will generally function.

Make sure to include the acsia.config the file provided in your elasticbeanstalk application startup pack (Kickstarter package).

After completing all the above steps, login into a new terminal on the ACSIA server and restart ACSIA by running the acsia_restart command. This is to make sure ACSIA picks up all changes and configuration files.

 

9.4 DNS Shield

9.4.1 DNS Shield - Phase 2

DNS Shield: This functionality, if enabled, will block queries to malicious domains. When a user receives an e-mail and clicks on the IP/attachment, if it's recognized as malicious, a courtesy page will appear instead of the link. 
This page informs the user that it was a malware and preventively blocks it. It also detects the language of the user and selects it automatically.

This feature is currently not supported on MacOS.

9.4.2 DNSSEC 

DNSSEC authenticates responses to domain name lookups.

dnsshield.png


9.5. Log Retention

ACSIA stores all incoming logs from servers between OpenSearch and MySQL databases. The lifespan (retention period) of the logs can be configured by navigating to Settings and clicking on Log Retention tab.

 

logretention.png

 

ACSIA enables users to set the different retention periods for a different types of logs (which are listed below):

  • Access Logs: These logs include all system logs and event logs
  • Web Logs: Web logs are the web applications logs (i.e. apache, Nginx, tomcat, IIS, etc.)
  • Audit Logs: These are very commonly known Linux audit logs.
  • Network Log: These logs are the network traffic captured at the server level (inbound and outbound).
  • ACM Logs: ACM stand for Advanced Compliance Mitigation and therefore these are compliance-related logs (system, application, security events, etc)

 

9.6. License

After completing the installation, you will be able to access the ACSIA application via a web browser. The first action is to activate the license.

If you do not activate the license, you won’t be able to do anything as the application will function at minimum capacity or not at all. To activate the license, copy the license code provided and go to Settings from the menu and then select the License tab where you can add/activate the license.

Here you will see all the information about your license: expiring date, client hosts on the instance, active instances. By clicking "Deactivate" you can deactivate your license.

 

license2.gif

 

The license can be requested via ticket from our support portal https://support.4securitas.com or if you have issues accessing it, contact the support via email at support@acsia.io.

 

9.7. Users

Adding a user has never been simpler. Just click on Settings from the menu and then Users.

Then click on "ADD USER" and fill in all the fields, you can also Delete or Edit Users in this Section. Please keep in mind that the actual username has to be an email address.

You can also reset the password directly from the Web UI, modify the User, send the Password Reset email and delete the User. 

adduser3.gif

 

9.8. Email 

The email settings relate to ACSIA server-side notifications via emails. This setting can be found in the Settings menu, in the Email tab.

Here you can set the sender email and the name for it. For instance, if your organization's domain is called example.com you can set the email as no-reply@example.com and the name as Acsia Alerts and white list that accounts on your anti-spam filters to make sure you receive notifications from that email account.

As soon as you set this up you will start receiving notification emails as per the setup.

If you experience issues in receiving email the recommended action is to set up an actual real email account and configure Under the email notification, instead of setting a simple email and label, you can enable the SMTP and the Authentication methods where you can fill in the details of the email you wish to use as sender.


If you have trouble setting this up, you can check the following troubleshooting article: Set and Configure a real email account as a sender V5.0+.

 

emailsmtp.gif

 

9.9. Two-Factor Authentication

ACSIA offers a 2FA method that can be implemented during and after installation for better security. The 2FA can be enabled for all users by navigating from Web UI to Settings > Two-Factor Authentication.

2fa2.gif

 

9.9.1. Enabling 2FA for ACSIA Web UI Login

We strongly recommend that the 2FA is enabled for the UI, especially if ACSIA users are accessing the UI from the internet. If the 2FA is enabled for WebApp login, all users will be provided with a QR code (which should be scanned by, e.g. Google Authenticator, FreeOTP, etc.), and must present the TOTP key each time they log in to the application along with traditional access credentials such as username and password.

 

9.10. Software Updates

In this section, you'll be notified when a new update is available. You'll also be able to update ACSIA directly from the UI, instead of the shell. 

 

9.11 Clients Uninstall

This section allows the user to Uninstall ACSIA (the action will remove all firewall rules, data shippers and the agents from all active hosts, including ACSIA itself. The action cannot be undone). 


 

10. Overview

10.1 Main Dashboard

ACSIA XDR Plus as of V6.0.0 now has a Main Dashboard in its new interface. On this dashboard, data can be actively examined with numerical, graphical and mapping visuals. At first glance, Data related to the last 10 days is presented. You can filter these data according to a certain time period with the filtering tool in the upper left corner.

 

dashboard3.png

 

In general, the following numerical data are shown on the board;
  • Critical Alert
  • High Alert
  • Medium Alert
  • Low Alert
  • IoCs Blocked by ACSIA
  • Attacks Blocked (IP Banned)
Graphically displayed data;
  • Attack Trends Line Graph
  • Top 10 Attacks by Category Graph
  • Top 10 Blocked Hosts (Prisma) Graph
  • Top 10 Offenders Graph
  • Top 10 Attacked Hosts Bar Graph
  • Top 10 Failed Logins Bar Graph
  • Top 10 Successful Logins Bar Graph
  • Top 10 Destinations Bar Graph

Geolocalized attack trends in the last 10 days are shown on the world map.

The dashboard can be customized according to your needs.

 

10.2 Insights

The Insights area can be found on the left-hand sidebar menu, under "Overview". This section contains multiple dashboards that ACSIA offers for deep investigations of events or even to generate reports and analytics. Each dashboard is visualized using OpenDashboard a web application offered by OpenSearch Stack. OpenSearch Dashboard is integrated in OpenSearch, you can find something here: Opensearch

Each dashboard is self-described as you will find it under Insights area.

 

insights.png

 

The results in each tab can be filtered to include a wider or smaller time span. 

 


 

11. Hosts

11.1 Host List Section

Hosts list page shows the inventory of all devices connected to ACSIA in a tablet mode and details of each table cell are briefly listed below:

  • Host Alias: where you can assign an alias to recognize better your host
  • Hostname: this value is retrieved automatically from the host but the user can change the name
  • Host IP: the IP address through which the client is connected
  • OS (Operating System): indicates what operating system the client has
  • Agent Version: indicates the version of the agent (if it's the most recent one you'll see "latest" in brackets next to the version of the agent)
  • Last seen: indicates when the agent last contacted ACSIA server
  • Status: contains the list and the status of all shippers that stream the client logs to the ACSIA server. There are five different statuses:
    - Active - when the Agent is up and running
    - Idle - when the Agent and the Central Manager have not communicated for more than 1 hour
    - Disconnected - when they have not communicated for 24 hours
    - Error - when the Shippers are not running
    - Shipper Stopped - when the Shippers have been manually stopped
    - Isolated - when the Host is quarantined
  • Profiles: here you'll see the Profile in which the Host has been added
  • Risk: this section brings you to the query in which the Host has been added
  • If you click the "+" sign, you'll see actionable sub-sections where details about the host are shown i.e. operating system, kernel, IP address, monitored logs and more. You can also change the host alias, start/stop the shippers ecc.


host.png

In the Host List section, hosts can be filtered according to their OS by clicking on the related tab. 

 


 

12. Events Section

12.1. Live Notifications

On the left side menu, we also have Live Notifications which contain a list of all live events that are not being actioned yet. All incoming security alerts will be listed in this section and by clicking on the Details arrow on each notification in this area you will be able to browse and explore the full details of a single incident/alert generated by ACSIA.

livenotification.png

 

We also have filters where the events can be filtered and searched by client IP, severity, category and type of event. 

 


 

13. Profiles

13.1 Host Insight

Host Insight is a new feature that gives you a quick overview of the security posture of managed clients by assessing them using compliance and security checks.

 


 

14. Compliance

The Compliance area contains primarily dashboards/reports relating to compliance and regulatory frameworks listed briefly below:

  • Security Information Management

  • Security events report

  • Integrity monitoring report

  • Threat Detection and Response

  • Vulnerabilities report

  • Mitre Att&ck

  • Auditing and Policy Monitoring

  • Policy monitoring dashboard

  • System auditing dashboard

  • Regulatory Compliance

  • GDPR

  • PCI DSS

  • HIPAA

  • NIST 800-53

  • TSC

compliance.png

 

Each dashboard is self-described under each tab. 

Regulatory compliance dashboards cover global regulatory regimes from GDPR, PCI DSS, NIST 800-53, HIPAA, TSC and Mitre Att&ck framework. ACSIA provides full control and visibility in real-time on compliance of IT systems, and if the systems are not compliant, it provides the exact failing point so it can be easily addressed. By clicking on "View", you'll be redirected to OpenDashboard. Here you'll find more detailed information according to the compliance dashboard selected.

 


 

15. Policies

ACSIA‘s Policies provides an inventory of what is allowed and not allowed on monitored clients. When ACSIA blocks traffic it utilizes individual clients' local firewalls (Windows firewall and routing table on Linux systems etc). The Policies section is divided into 5 subsections as follows:

  • IP Blacklist

  • IP Whitelist

  • Locked Users

  • Access Location

  • Muted Notifications

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15.1. IP Blacklist

The IP Blacklist contains all those source IP addresses that have been marked as malicious and unauthorized and therefore blacklisted (banned by hosts). You can undo an action if an IP address is mistakenly banned by a user. If the autoban feature is enabled, ACSIA will automatically handle all potential attacks and threats originating from outside of the organization (from the internet for example) whereas internal threats will always be notified for the ACSIA administrator to make the final decision.

15.2. IP Whitelist

The IP Whitelist contains all those source IP addresses that have been marked as trusted. Note that whitelisting an IP address does not include web requests due to giving sensitivity to web application level accesses. Therefore when you white list an IP address that doesn’t apply to web requests and if traffic originating from that specific IP address identifies a potential threat it will be subject to notification and alert.

15.3. Locked Users

The Locked Users contains specific users that are marked to be locked. They can be legitimate users who attempt to gain access to non-authorized areas. Alternatively, they may be malicious users that have compromised the legitimate account details of a user and therefore been locked. ACSIA does not automatically block legitimate users, it always requires user input so it will be at the ACSIA administrator’s discretion to make that call.

15.4. Access Location

The Access Location refers to those security events where legitimate access originates from a geographical location or an IP address that wasn’t authorized on ACSIA. Therefore waiting for approval, to be authorized or unauthorized. If you authorize a location-based IP address for a user it is like whitelisting that user only for that IP address. On the other hand, if you mark a user unauthorized, that user will still be able to access and make attempts but you will be notified every time. So the Access Location is different from blacklisting an IP unless you add the IP manually to the blacklist.

15.5. Muted Notifications

The Muted Notifications refers to those security events that have been acknowledged legitimately by ACSIA administrators and/or security analysts. Once an incident is marked to be muted ACSIA will no longer notify that type of incident. All muted events can be unmuted at any time.

 


 

16. Audit Logs

Audit Logs is the section where you can find all events that have been actioned or amended and by whom (ACSIA users, who did what on web UI).

 


 

17. Distribution Lists

ACSIA enables you to create distribution lists where you can add members to each group and set the notification types to be sent to each distribution list. For instance, you can set a distribution list to receive only Critical or High or Medium/Low priority security alerts. Your C-Level management may not want to receive alerts outside Critical events and therefore a distribution list can be created to satisfy this requirement.

You will find the Distribution List on the left sidebar menu. To create a new distribution list just click "ADD NEW LIST".

 

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Give a name to the Distribution List created and select the members by adding them to the list along with choosing the type of event (Critical, High or Medium/Low) that you wish the group should receive.

You are now all set to receive notifications through the distribution list.


 

18. Immediate Actions - Remediation options

It is highly likely that the Immediate Actions are going to be the most frequently used features of ACSIA by its users. You will often find these actions embedded in all incoming security events or email notifications. From there you can take immediate action and interactively mitigate the event for its remediation.

This is the Interactive feature of ACSIA where the user input is required for the remediation of events and threats:

The order of Immediate Actions (sometimes referred to as Remediation Options), supplied with the notifications dynamically changes based on the severity level of the event and the type of event. For instance, if there is a potential account compromise alert, the order of remediation action will be set on priority where the option appearing on the top will be the most logical choice followed by the second in the list and so on. ACSIA users will benefit greatly from this feature even if they don’t have cybersecurity knowledge or have limited technical skills.

 

18.1 Immediate Actions or Remediation Options offered by ACSIA:

18.1.1. Kill this connection

By choosing this action the ACSIA user will be killing network traffic (in real-time) for that malicious IP address and suspending all traffic for that IP address for the next 15 minutes. Any established connection and new connection requests will be killed while attempting to broadcast.

 

18.1.2. Acknowledge and Authorize User/Location

By choosing this action you authorize that specific user and the associated IP address on a permanent basis to access your premises. That IP address will be whitelisted for ACSIA and therefore you will no longer receive an alert originating from that IP address associated with its user.

 

18.1.3. Mark This User/Location as Unauthorized

By choosing this action you ask ACSIA to keep notifying users about this event until you make a decision. Use this for incidents where you have not yet decided to ban or authorize access made from an IP address.

 

18.1.4. Ban This IP

By choosing this action you permanently ban the IP address and therefore it will no longer be able to reach out to your systems.

 

18.1.5. Lock User

By choosing this action you lock the user account within your systems.

 

18.1.6. Track This IP

This action will take you to OpenDashboard application Dashboard where all network and server activity of that specific IP address will be populated to give full visibility of what’s happening.

 

18.1.7. Track This User

This action will take you to OpenDashboard application Dashboard where all network and server activity will be populated for that specific user by enabling you to establish the legitimacy of the user activity.

 

18.1.8. Whois Query

This is a domain name lookup service to search the whois database for domain and IP registration information. It gives relevant information about the ownership of the originating IP address of the malicious user.

 

18.1.9. View Details

This provides accurate details of the event, including the geographical location of the originating IP address and the geographical coordinates.

 

18.1.10. Close Incident

This is to simply disregard the event and if it reoccurs ACSIA will notify again.

 

18.1.11. Mute Notification

This action is to tell ACSIA to disregard and no longer notify when that specific event reoccurs.

 

18.1.12. Track Command Session - Only for Linux clients

This is an extremely powerful feature within ACSIA that is enabled by our Kernel level monitoring. From the moment that suspicious activity has been detected or a user has attempted to read or write to sensitive data or files, the alert will be triggered and real-time remediation actions provided. When you click on this Track Command Session you will be presented not only with that specific user activity that triggered the alert, but the entire session of the user in replay mode. This forensic level of detail will allow you to view the full activity performed by the user and therefore have an understanding of why that user tried to alter the sensitive files and data and make a remediation action swiftly.

18.1.13 Isolate This Server

This action will put the Server in quarantine and you'll find it in the Host List Section, in the tab "Quarantined Hosts".

18.1.14 Close All Similar Events on This Server

This option will close all similar events on the same server. 

18.1.15 Close All Similar Events on All Servers

This option will close all similar events on all the servers. 

 


 

19. Container-specific details

ACSIA is container-aware, and will automatically track kernel events within containers. However, if you are running application/webservers within containers, and wish for these logs to be monitored, they must be made available to the host. ACSIA does not support symlinks to log files - it must be the full path to the given log file.

Linux container logs can be presented to ACSIA by using docker options --volume or --mount. As per official docker documentation here. or here if you are using docker-compose.

 


For any further information and queries please get in touch with our support team by contacting us via our support portal (https://support.4securitas.com).

ACSIA is a product of 4Securitas Ltd.

Copyright 2022 4Securitas Ltd