Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
4,253 detections
Filters
Last updated
All Time
Detection languages
1,543
1,191
352
288
225
Contributors
792
520
494
349
298
Categories
1,711
1,489
400
382
376
Platforms
3,052
528
334
314
254
Products / Services
779
648
634
283
238
MITRE Techniques
18,113
15,640
12,591
8,389
6,208
4,253
CVEs
6
6
6
5
5
IDS Classtypes
75
63
37
23
9
IDS Protocols
127
66
6
4
4
Adversaries may look for details about the network configuration and settings of systems they access or through information discovery of remote systems
Detects suspicious way to dump the kernel on Windows systems using dtrace.exe, which is available on Windows systems since Windows 10 19H1
Adversaries may attempt to get a listing of network connections to or from the compromised system they are currently accessing or from remote systems by querying for information over the network.
This tool enables enumeration and exporting of all DNS records in the zone for recon purposes of internal networks Python 3 and python.exe must be installed,
Usee to Query/modify DNS records for Active Directory integrated DNS via LDAP
Usee to Query/modify DNS records for Active Directory integrated DNS via LDAP
Detects the execution of Notepad to open a file that has the string "password" which may indicate unauthorized access to credentials or suspicious activity.
Detects execution of the built-in script located in "C:\Windows\System32\gatherNetworkInfo.vbs". Which can be used to gather information about the target machine
Detects the use of Advanced Port Scanner.
Detects SharpLdapWhoami, a whoami alternative that queries the LDAP service on a domain controller
Detect the harvesting of wifi credentials using netsh.exe
'Identifies the host and account that executed AdFind by hash and filename in addition to common and unique flags that are used by many threat actors in discovery.
To use this analytics rule, make sure you have deployed the [ASIM normalization parsers](https://aka.ms/ASimProcessEvent)'
To use this analytics rule, make sure you have deployed the [ASIM normalization parsers](https://aka.ms/ASimProcessEvent)'
This query uncovers seen IPAddressV4 network subnets
'Entropy calculation used to help identify Hosts where they have a high variety of processes(a high entropy process list on a given Host over time).
This helps us identify rare processes on a given Host. Rare here means a process shows up on the Host relatively few times in the the last 7days.
The Weight is calculated based on the Entropy, Process Count and Distinct Hosts with that Process. The lower the Weight/ProcessEntropy the, more interesting.
The Weight calculation increases the Weight if the process executes more than once on the Host or has executed on more than 1 Hosts.
In general, this should identify processes on a Host that are rare and rare for the environment.
References: https://medium.com/udacity/shannon-entropy-information-gain-and-picking-balls-from-buckets-5810d35d54b4
https://en.wiktionary.org/wiki/Shannon_entropy'
This helps us identify rare processes on a given Host. Rare here means a process shows up on the Host relatively few times in the the last 7days.
The Weight is calculated based on the Entropy, Process Count and Distinct Hosts with that Process. The lower the Weight/ProcessEntropy the, more interesting.
The Weight calculation increases the Weight if the process executes more than once on the Host or has executed on more than 1 Hosts.
In general, this should identify processes on a Host that are rare and rare for the environment.
References: https://medium.com/udacity/shannon-entropy-information-gain-and-picking-balls-from-buckets-5810d35d54b4
https://en.wiktionary.org/wiki/Shannon_entropy'
Identify accounts that have logged on to affected endpoints.
Check for specific alerts.
Check for specific alerts.
Original Sigma Rule: https://github.com/Neo23x0/sigma/blob/master/rules/apt/apt_judgement_panda_gtr19.yml.
Questions via Twitter: @janvonkirchheim.
Questions via Twitter: @janvonkirchheim.
Action "PnpDeviceConnected" reports the connection of any plug and play device.
Read more online on event 6416: https://docs.microsoft.com/windows/security/threat-protection/auditing/event-6416.
Query #1: look for rare one-time devices connected to a specific machine.
Read more online on event 6416: https://docs.microsoft.com/windows/security/threat-protection/auditing/event-6416.
Query #1: look for rare one-time devices connected to a specific machine.
This query is a function that consumes the publicly available Azure IP address list and checks a list of remote IP addresses against it to see if they are Azure IP addresses or not.
To use this, replace the demo portion of the query (DeviceNetworkEvents | take 10000) with your query with the column name of the IP address to check named RemoteIP. The function will add a new column to the end called IsAzure denoting if the IP address range is in the published list or not.
Please note that over time the URL to the Azure IP address list may need to be updated.
To use this, replace the demo portion of the query (DeviceNetworkEvents | take 10000) with your query with the column name of the IP address to check named RemoteIP. The function will add a new column to the end called IsAzure denoting if the IP address range is in the published list or not.
Please note that over time the URL to the Azure IP address list may need to be updated.
'Under specific circumstances, executing KQL queries can exfiltrate information like access tokens, regarding external data functions like adx().
This query tries to list executed KQL queries that used the adx() function and where an access token might have been exposed to.
Ref: https://docs.microsoft.com/azure/azure-monitor/logs/azure-monitor-data-explorer-proxy
Ref: https://securecloud.blog/2022/04/27/azure-monitor-malicious-kql-query/'
This query tries to list executed KQL queries that used the adx() function and where an access token might have been exposed to.
Ref: https://docs.microsoft.com/azure/azure-monitor/logs/azure-monitor-data-explorer-proxy
Ref: https://securecloud.blog/2022/04/27/azure-monitor-malicious-kql-query/'
'Provides the Anti virus mode and device count falling under that AV mode.'
StrRAT is a Java-based remote access tool which steals browser credentials, logs keystrokes and take remote control of infected systems. It also has a module to download additional payload onto to the infected machine based on C2 server command. Additionally, this threat also has a ransomware encryption/decryption module which appends .crimson extension.
This query was originally published in the threat analytics report, EvilQuest signals the rise of Mac ransomware.
As of the time of this writing (October 2020), ransomware designed to target macOS is relatively rare. EvilQuest is one of the few examples of this kind of malware on the platform.
The query below can detect events associated with the launch of the EvilQuest executable, questd, from the shell.
Other queries related to EvilQuest ransomware can be found under the See also section below.
As of the time of this writing (October 2020), ransomware designed to target macOS is relatively rare. EvilQuest is one of the few examples of this kind of malware on the platform.
The query below can detect events associated with the launch of the EvilQuest executable, questd, from the shell.
Other queries related to EvilQuest ransomware can be found under the See also section below.
This query surfaces devices that are in a specific IPAddressV4 subnet
Page 159 of 203