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SIEM System Use Cases

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Working on LogRhythm – Cloud SIEM project. LogRhythm’s SIEM solution combines enterprise log management, security analytics, user entity and behavioral analytics (UEBA), network traffic and behavioral analytics (NTBA) and security automation and orchestration. That integrated approach can make for efficient security operations, from threat detection to incident response.

Because SIEM is a core security infrastructure with access to data from across the enterprise, there are a large variety of SIEM use cases. Below are common SIEM use case examples, from traditional uses such as compliance, to cutting edge use cases such as insider threat detection and IoT security.

1 Single User
Adding Multiple Accounts to Privileged Group(S)
8
2 Audit Disabled by
Admin
8
3 Actioned
Terminated/Disabled Account Activity
8
4 Distributed Brute
Force Authentication Success (Windows)
7
5 Lateral Movement with
Account Sweep
7
6 Concurrent VPN from
Multiple Locations
7
7 Windows RunAs
Privilege Escalation
7
8 Attack then Outbound
Connection
7
9 User/Configuration
Changes outside business hours
7
10 Configuration or
Policy Change
7
11 Exfiltration: Large
Outbound Transfer
6
12 Domain Password
Policy was changed
6
13 P2P Activity Detected 6
14 Privileged Account
Authentication Failures outside Business Hours
6
15 Temporary Account
Used
6
16 Account and Group
Management Activity
6
17 Authentication after
Security Event
5
18 Critical/Error Alert 5
19 Spamming Bot 5
20 Suspicious Outbound
Web Traffic Detected
5
21 Internal Distributed
Authentication Failure
4
22 Expired/Disabled VPN
Login Attempt
4
23 Pivot Behaviour –
Windows Service
4
24 Internal Attack then
Account Creation
4
25 Repeated Attacks
against Host
4
26 Data Exfiltration 4
27 Single User Being
Added to Multiple Unique Privileged Groups
3
28 Malware Outbreak 3
29 Privileged Account
Authentication Activity
3
30 Antivirus Failure 2
31 Malware: Not Cleaned 2
32 User
Privilege/Permission Changes on database
2

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