Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

1,208 detections

The following queries pivot from an IP address assigned to a machine to the relevant machine or logged-on users.
To read more about it, check out this post: https://techcommunity.microsoft.com/t5/What-s-New/Advanced-hunting-now-includes-network-adapters-information/m-p/224402#M74.
Query #1: get machines that have used a given local IP address at a given time - as configured on their network adapters.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
1012
This query was originally published in the threat analytics report, Operation Soft Cell.
Operation Soft Cell is a series of campaigns targeting users' call logs at telecommunications providers throughout the world. These attacks date from as early as 2012.
Operation Soft Cell operators sometimes use legitimate web server processes to launch commands, especially for network discovery and user/owner discovery. The following query detects activity of this kind.
Reference - https://www.cybereason.com/blog/operation-soft-cell-a-worldwide-campaign-against-telecommunications-providers
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0012
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0012
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0012
LemonDuck is an actively updated and robust malware primarily known for its botnet and cryptocurrency mining objectives. First discovered in 2019, LemonDuck has since adopted more sophisticated behavior and escalated its operations in 2021. Today, beyond using resources for its traditional bot and mining activities, LemonDuck steals credentials, removes security controls, spreads via emails, moves laterally, and ultimately drops more tools for human-operated activity.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0011
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0011
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0011
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0011
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0011
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0011
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0011
This query was originally published in the threat analytics report, ShadowHammer supply chain attack
Operation ShadowHammer was an attack against ASUS computer hardware, using the company's own update infrastructure to deliver malware to the company's products. The campaign ran from June to November, 2018. ASUS has since responded with updates that protect their Live Update system, and diagnostic tools to check affected systems.
The following query checks for activity associated with the ShadowHammer download domain over the past 30 days.
References:
https://www.vice.com/en_us/article/pan9wn/hackers-hijacked-asus-software-updates-to-install-backdoors-on-thousands-of-computers
https://www.asus.com/News/hqfgVUyZ6uyAyJe1
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0011
The following analytic detects attempts to stop a service on Linux systems. It leverages data from Linux Auditd. This activity is significant as adversaries often stop or terminate security or critical services to disable defenses or disrupt operations, as seen in malware like Industroyer2. If confirmed malicious, this could lead to the disabling of security mechanisms, allowing attackers to persist, escalate privileges, or deploy destructive payloads, severely impacting system integrity and availability.
Splunk Security@SplunkSecurity
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Splunk Security Content
1 year ago
0054
This query was originally published in the threat analytics report, May 2019 0-day disclosures.
In May and June of 2019, a security researcher with the online alias, SandboxEscaper, discovered and published several elevation-of-privilege vulnerabilities on Github. The researcher included proofs-of-concept demonstrating how to exploit these vulnerabilities.
Patches and more information about each vulnerability are available below:
1. CVE-2019-0863 | Windows Error Reporting Elevation of Privilege Vulnerability
2. CVE-2019-1069 | Task Scheduler Elevation of Privilege Vulnerability
3. CVE-2019-1053 | Windows Shell Elevation of Privilege Vulnerability
4. CVE-2019-1064 | Windows Elevation of Privilege Vulnerability
5. CVE-2019-0973 | Windows Installer Elevation of Privilege Vulnerability
6. CVE-2019-1129 | Windows Elevation of Privilege Vulnerability
This query locates possible activity that exploits CVE-2019-1053 (also known as SandboxEscape), the third vulnerability listed above.
Reference - https://threatpost.com/sandboxescaper-more-exploits-ie-zero-day/145010/
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0010
// Look for attempts to use fsutil.exe to delete file system logs that can be used as forensic artifacts.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0010
Get stats on ASR audit events - count events and machines per rule.
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0010
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0010
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0010
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0010
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0010
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0010
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