Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects a network connection initiated by programs or processes running from suspicious or uncommon files system locations.
Detects Non-Standard tools initiating a connection over port 3389 indicating possible lateral movement.
An initial baseline is required before using this utility to exclude third party RDP tooling that you might use.
An initial baseline is required before using this utility to exclude third party RDP tooling that you might use.
C2-NamedPipe
KQL
Detects the creation of a named pipe used by known APT malware.
Reference - https://docs.microsoft.com/openspecs/windows_protocols/ms-wpo/4de75e21-36fd-440a-859b-75accc74487c
Reference - https://docs.microsoft.com/openspecs/windows_protocols/ms-wpo/4de75e21-36fd-440a-859b-75accc74487c
Detects a network connection initiated from a process located in the "C:\Users\Public" folder.
Attacker are known to drop their malicious payloads and malware in this directory as its writable by everyone.
Use this rule to hunt for potential suspicious or uncommon activity in your environement.
Attacker are known to drop their malicious payloads and malware in this directory as its writable by everyone.
Use this rule to hunt for potential suspicious or uncommon activity in your environement.
The following analytic detects the execution of rundll32.exe with command-line arguments loading davclnt.dll and the davsetcookie function to access a remote WebDav instance. It uses data from Endpoint Detection and Response (EDR) agents, correlating process execution and network traffic data. This activity is significant as it may indicate exploitation of CVE-2023-23397, a known vulnerability. If confirmed malicious, this could allow an attacker to establish unauthorized remote connections, potentially leading to data exfiltration or further network compromise.
'This query detects lateral movement using GPO scheduled task usually used to deploy ransomware at scale.
It monitors whether a scheduled task is modified within the Sysvol folder in GPO.
Ref: https://bogusecurity.com/2019/12/26/persistence-and-execution-at-scale-via-gpo-scheduled-task/'
It monitors whether a scheduled task is modified within the Sysvol folder in GPO.
Ref: https://bogusecurity.com/2019/12/26/persistence-and-execution-at-scale-via-gpo-scheduled-task/'
Detects incoming connections to AnyDesk. This could indicate a potential remote attacker trying to connect to a listening instance of AnyDesk and use it as potential command and control channel.
Detects executables located in potentially suspicious directories initiating network connections towards file sharing domains.
Detects a network connection initiated by an "Msiexec.exe" process over port 80 or 443.
Adversaries might abuse "msiexec.exe" to install and execute remotely hosted packages.
Use this rule to hunt for potentially anomalous or suspicious communications.
Adversaries might abuse "msiexec.exe" to install and execute remotely hosted packages.
Use this rule to hunt for potentially anomalous or suspicious communications.
Detects a network connection initiated by "Regsvr32.exe"
Detects a process that initiated a network connection over ports 5985 or 5986 from a non-network service account.
This could potentially indicates a remote PowerShell connection.
This could potentially indicates a remote PowerShell connection.
Detects svchost hosting RDP termsvcs communicating to target systems on TCP port 80 or 443
Detects uncommon outbound network activity via Kerberos default port indicating possible lateral movement or first stage PrivEsc via delegation.
Detects an RDP connection originating from a domain controller.
This query identifies files that are copied to a device over SMB, then executed within a
specified threshold. Default is 5 seconds, but is configurable by tweaking the value for
ToleranceInSeconds.
specified threshold. Default is 5 seconds, but is configurable by tweaking the value for
ToleranceInSeconds.
The analytic detects a suspicious process making DNS queries to known, abused web services such as text-paste sites, VoIP, secure tunneling, instant messaging, and digital distribution platforms. This detection leverages Sysmon logs with Event ID 22, focusing on specific query names. This activity is significant as it may indicate an adversary attempting to download malicious files, a common initial access technique. If confirmed malicious, this could lead to unauthorized code execution, data exfiltration, or further compromise of the target host.
Detects a script interpreter wscript/cscript opening a network connection to a non-local network. Adversaries may use script to download malicious payloads.
Detects outbound network connection initiated by Microsoft Dialer.
The Microsoft Dialer, also known as Phone Dialer, is a built-in utility application included in various versions of the Microsoft Windows operating system. Its primary function is to provide users with a graphical interface for managing phone calls via a modem or a phone line connected to the computer.
This is an outdated process in the current conext of it's usage and is a common target for info stealers for process injection, and is used to make C2 connections, common example is "Rhadamanthys"
The Microsoft Dialer, also known as Phone Dialer, is a built-in utility application included in various versions of the Microsoft Windows operating system. Its primary function is to provide users with a graphical interface for managing phone calls via a modem or a phone line connected to the computer.
This is an outdated process in the current conext of it's usage and is a common target for info stealers for process injection, and is used to make C2 connections, common example is "Rhadamanthys"
Adversaries may steal data by exfiltrating it over an un-encrypted network protocol other than that of the existing command and control channel.
The data may also be sent to an alternate network location from the main command and control server.
The data may also be sent to an alternate network location from the main command and control server.
Detects a network connection initiated by programs or processes running from suspicious or uncommon files system locations.
Detects a Python process initiating a network connection. While this often relates to package installation, it can also indicate a potential malicious script communicating with a C&C server.
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