Detections

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

1,304 detections

Microsoft has observed attackers who have gained entry to an environment via the Log4J vulnerability utilizing identifiable strings in PowerShell commands.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0021
This query helps reviewing malicious email detections by detection methods
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
2021
This query visualises total emails with Malware detections over time summarizing the data daily by various Malware detection technologies/controls.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0021
Query 1 shows you any network communication happened from endpoints to a specific Remote IP or Remote URL.
Ensure to update RemoteIP and RemoteURL variable.
For questions @MiladMSFT on Twitter or milad.aslaner@microsoft.com by email.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0021
Get information about the netwotk adapters of the given computer in the given time.
This could include the configured IP addresses, DHCP servers, DNS servers, and more.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
1021
Determines DeviceId from internal IP address and outputs all alerts in events table associated to the DeviceId.
Example use case is Firewall determines Internal IP with suspicious network activity. Query WDATP based on date/time and Internal IP and see associated alerts for the endpoint.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0021
Query 1 shows you any network communication happened from endpoints to a specific Remote IP or Remote URL.
Ensure to update RemoteIP and RemoteURL variable.
For questions @MiladMSFT on Twitter or milad.aslaner@microsoft.com by email.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0019
'This query identifies matches based on domain IOCs related to KNOTWEED against Microsoft Defender for Endpoint device network connections'
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0018
This query visualises total emails with Phish detections over time summarizing the data daily by Delivery Location.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0018
This query visualises total emails with Phish detections summarizing the data by various Phish detection technologies/controls
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0018
Intent:
- Use MTP capability to look for insider threat potential risk indicators
- Indicators would then serve as the building block for insider threat risk modeling in subsequent tools
Definition of Insider Threat:
"The potential for an individual who has or had authorized access to an organization's assets to use their access, either maliciously or unintentionally, to act in a way that could negatively affect the organization."
This collection of queries describes the different indicators that could be used to model and look for patterns suggesting an increased risk of an individual becoming a potential insider threat.
Note: no single indicator should be used as a lone determinant of insider threat activity, but should be part of an overall program to understand the increased risk to your organization's critical assets. This in turn is used to feed an investigation by a formal insider threat program to look at the context associated with the whole person to understand the implication of a set of indicators.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0018
'The alert shows users that join a Zoom meeting from a time zone other than the one the meeting was created in.
You can also whitelist known good time zones in the tz_whitelist value using the tz database name format https://en.wikipedia.org/wiki/List_of_tz_database_time_zones'
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0018
'This query uses the Azure Defender Security Nested Recommendations data to find machines vulnerable to OMIGOD CVE-2021-38647.
OMI is the Linux equivalent of Windows WMI and helps users manage configurations across remote and local environments. The query aims to find machines that have this OMI vulnerability (CVE-2021-38647).
Security Nested Recommendations data is sent to Microsoft Sentinel using the continuous export feature of Azure Defender(refrence link below).
Reference: https://www.wiz.io/blog/omigod-critical-vulnerabilities-in-omi-azure
Reference: https://docs.microsoft.com/azure/security-center/continuous-export?tabs=azure-portal'
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0018
Jupyter, otherwise known as SolarMarker, is a malware family and cluster of components known for its info-stealing and backdoor capabilities that mainly proliferates through search engine optimization manipulation and malicious advertising in order to successfully encourage users to download malicious templates and documents. This malware has been popular since 2020 and currently is still active as of 2021.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
3017
Original Sigma Rule: https://github.com/Neo23x0/sigma/blob/master/rules/apt/apt_babyshark.yml.
Questions via Twitter: @janvonkirchheim.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
3017
Identify prior activity from this campaign using IOCs shared by Microsoft's Threat Intelligence Center, or MSTIC.
Read more: https://blogs.microsoft.com/on-the-issues/2020/10/28/cyberattacks-phosphorus-t20-munich-security-conference/
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0017
Intent:
- Use MTP capability to look for insider threat potential risk indicators
- Indicators would then serve as the building block for insider threat risk modeling in subsequent tools
Definition of Insider Threat:
"The potential for an individual who has or had authorized access to an organization's assets to use their access, either maliciously or unintentionally, to act in a way that could negatively affect the organization."
This collection of queries describes the different indicators that could be used to model and look for patterns suggesting an increased risk of an individual becoming a potential insider threat.
Note: no single indicator should be used as a lone determinant of insider threat activity, but should be part of an overall program to understand the increased risk to your organization's critical assets. This in turn is used to feed an investigation by a formal insider threat program to look at the context associated with the whole person to understand the implication of a set of indicators.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
1017
This query uses the public MDE GitHub repo as a source to estimate the time that an agent build remains supported
based on the time it was uploaded. Please note that the timestamps used in this query are meant to estimate the
support period and will likely not represent the actual expiration of the package which will be based on the build.
If you would like an estimate of support, uncomment the extend statement to get an idea of what is \ is not
supported and an idea of how long support will remain for current agents.
This query currently only supports GA builds, not preview builds.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0017
This query helps reviewing zero day threats via URL and file detonations
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0016
This query will count the number of devices in Defender ATP based
on their DNS suffix. For a full list of devices with the DNS
suffix, comment out or remove the last line.
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0016
'This finds connections to server files requested by only one client. Effective when actor uses static operational IP addresses. Threshold can be modified. Larger execution window increases reliability of results.'
Azure Sentinel@AzureSentinel
avatar
AzureSentinel
1 year ago
0016
Page 57 of 63