Use cases of a SOCaaS for companies part 1
Estimated reading time: 6 minutes
Cyber Threat Analytics applications monitor security logs and the network to promptly detect any malware infections (for example, attacks zero day ei ransomware ), the compromise of the system, the activities of “ lateral movement ”, pass-the-hash , pass-the-ticket and other advanced intrusion techniques. The use of a SOCaaS allows to extrapolate data from sources such as firewalls, proxies, VPN, IDS, DNS, endpoints, and from all devices connected to the network with the aim of identifying harmful models such as “beaconing”, connections to generated domains digitally, actions performed by robots and all anomalous behaviors.
Our system SOCaaS is equipped with artificial intelligence that enriches and transforms events SIEM , so you identify threats across your entire IT environment, including business-critical applications.
What are the-advantages at the enterprise-level?
The use of a SOCaaS. Below is a list with only some of the advantages that the use of SOCaaS can entail rapid detection of violations, reducing the impact of these. Additionally, a SOCaaS provides comprehensive threat responses and investigations, decreases monitoring and management costs, as well as compliance costs.
The use of a SOCaaS also allows you to receive quantified and non-subjective reports on threats and risks.
SOCaaS use cases
After a general overview of the advantages that the use of SOCaaS could offer to the company, let’s see in what contexts it is normally used .
A SOCaaS consists of elements that are very suitable to be applied in case of abnormal execution of applications, as well as in the analysis of bot traffic to a malicious website.
In other cases, SOCaaS identifies unusual DNS queries, a possible remote command and control activity, analyzes the spikes in bytes to external destinations and then also checks the traffic, relating it in an application / port context.
Other scenarios in which the use of SOCaaS is ideal are the detections of exploits, sessions of unusual duration, but also connections to IPs or blacklisted domains and anomalous activity in general.
Finally, it can also detect targeted SPAM attacks and phishing attempts.
By analyzing threat indicators it is possible to detect correlated behaviors on multiple data sources, to also detect all those threats that usually go unnoticed. Multiple threat indicators occurring in a scheme and involving similar entities tend to present a greater risk of posing a real threat.
The Threat Models define these patterns and combine threat policies and indicators to detect related behaviors across multiple data sources, identifying threats that may go unnoticed. Below are some of the more common Threat Models that are included in the use of a SOCaaS
Lateral Movement Detection
This Threat Model detects the possible scenarios of “ lateral movement “, used by attackers to progressively spread across a network in search of key resources and data. The signs of such an attack can be varied and we can divide them into three categories: Abnormal authentication, suspicious privileges, abnormal process.
Abnormal authentication is usually detectable by some clues. For example if an account accesses a host that has never been reached before. Or if explicit credentials are used on multiple hosts, or if a suspicious authentication type / process is detected.
Concerning suspicious privileges, here are some indicators detectable with the use of a SOCaaS:
- abnormal provisioning activity
- suspicious escalation of privileges
- abnormal access to network share objects
An abnormal process is detected in this way through the use of a SOCaaS: an unusual process code, or the suspicious creation of scheduled tasks. Alternatively, suspicious changes to the registry settings may be detected.
Detection of compromised hosts
This model is employed in the use of SOCaaS to detect hosts showing signs of infection and compromise by relating host and network based anomalies to the same entity.
A possible alarm is given by anomalies in outgoing traffic . This occurs when traffic goes to random domains or known malicious hosts. In other cases, however, an abnormal number of domains contacted is another alarm bell detectable through the use of a SOCaaS.
anomalies in the endpoint are found when rare processes or suspicious use of ports or protocols by the process itself are found. One possibility is also to detect an unusual agent.
APT detection using a SOCaaS
Detection APT detects attacks on health care networks , where the attacker’s aim is usually to obtain a unauthorized access to a network with the intention of remaining undetected for an extended period.
This includes phishing attempts , detection of a network scan or circumvention of controls. In the delivery phase, however, traffic to random domains, an anomaly in DHCP traffic or traffic destined to known malicious hosts may be identified.
During an exploit , the indicators can be: the detection of activity from terminated accounts, anomalous DNS traffic, but also a suspicious authentication process. Another possible indicator identifiable with the use of SOCaaS is an anomaly in the speed of the network.
Through the use of a SOCaaS, cases of data exfiltration can also be detected. The signals in this case are l ‘Unauthorized upload of data over the network.
Detection model Phishing using SOCaaS
This model is able to detect possible phishing attempts towards users within the organization . We’ve talked about it in other articles as well, and here are some indicators of this type of attack. A wake-up call is definitely the detection of known phishing campaigns. It is also not uncommon for spear phishing attacks to be detected.
The use of a SOCaaS is also able to identify possible phishing attempts or persistent phishing campaigns, thanks to the comparison with emails from senders / domains / IP addresses known in the blacklists. As usual, beware of suspicious email attachments, but the use of a SOCaaS could automate, at least in part, the checks.
It is then possible to identify outbound traffic anomalies , for example that towards random domains, which is also a possible phishing signal. Classic traffic to malicious hosts, an abnormal number of rare domains accessed, can also be indicators.
Host / Account Enumeration on LDAP
Usually used to identify potential assets or account enumerations on the network by malicious entities.
Running suspicious processes
- Abnormal process / MD5 detected
- Use of possible sets of AD (Active Directory) enumeration tools
- Detected use of malicious tools and utilities
- Possible AD accounts / enumeration privileges
- LDAP or SMB service count
- Abnormal number of Kerberos service ticket requests
- Port scanning
- Accounts accessing a host for the first time
- Using never-before-seen accounts on the network
- Abnormal number of failed authentication requests
Reconnaissance followed by potential exploitation
This threat model aims to identify successful network reconnaissance attempts, followed by indicators of exploitation.
- Scanning ports from external hosts
- Enumerating hosts from external hosts
- Possible count of AD accounts / privileges
- Enumeration of LDAP services
- Unsolved number of Kerberos service ticket requests
- Spikes in traffic LDAP
- Enumeration of SMB services
Anomalies in processes
- Detection of abnormal processes or MD5
- Suspicious creation of scheduled tasks
- Suspicious changes to registry settings detected
We have seen what are the major SOCaaS use cases, taking a look at some of the most common threat models that it includes in its protection system. For information on malware threat patterns and threat identifiers visit this article.
Using a SOCaaS is a solid and highly valuable business solution, ask us what it can do for your business, we will be happy to answer any questions.
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