Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
979 detections
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Detects unauthorized access to Windows camera or microphone consent store registry keys by either a suspected Kothamine agent masquerading as 'MicrosoftEdgeUpdateCore.exe' or an injected 'explorer.exe'. The rule correlates these registry access events with the presence of specific Kothamine-related file artifacts (MicrosoftEdgeUpdateCore.dll and tailcat.exe) on the same host within a 24-hour window to minimize noise.
Detects unauthorized access to Windows camera or microphone consent store registry keys by either a suspected Kothamine agent masquerading as 'MicrosoftEdgeUpdateCore.exe' or an injected 'explorer.exe'. The rule correlates these registry access events with the presence of specific Kothamine-related file artifacts (MicrosoftEdgeUpdateCore.dll and tailcat.exe) on the same host within a 24-hour window to minimize noise.
Detects unauthorized access to Windows camera or microphone consent store registry keys by either a suspected Kothamine agent masquerading as 'MicrosoftEdgeUpdateCore.exe' or an injected 'explorer.exe'. The rule correlates these registry access events with the presence of specific Kothamine-related file artifacts (MicrosoftEdgeUpdateCore.dll and tailcat.exe) on the same host within a 24-hour window to minimize noise.
Detects suspicious command-line fragments being written to the Windows RunMRU registry key, which is used by the Explorer 'Run' dialog to store history. Adversaries may abuse this by injecting malicious command lines that are then executed when a user attempts to run a program.
FileFix execution via the Explorer address bar writes to HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths, a forensic artifact distinct from the Run dialog's RunMRU key, immediately before the malicious child process spawns.
Detects registry value modifications to the Windows Explorer RunMRU key where the data contains indicators of obfuscated PowerShell commands. This pattern is commonly associated with the 'ClickFix' social-engineering campaign, where users are prompted to copy and paste a malicious PowerShell command into the Windows Run dialog.
Detects persistence mechanisms used by The Gentlemen ransomware, specifically the creation of malicious scheduled tasks (UpdateUser, UpdateSystem, or gentlemen_system) and modification of registry Run keys (GupdateS or GupdateU). The rule also monitors for the presence of the operator password string 'G7Vz9eyG' within command line arguments.
Detects the creation of hidden administrative shares (ending in $) mapped to local directories (e.g., C:\Temp) with unrestricted 'Everyone' or 'ANONYMOUS LOGON' permissions. This technique is used by the Gentlemen ransomware to stage malicious binaries for lateral movement and subsequent encryption across the network. The rule monitors for 'net share' commands with specific permission grants, 'icacls' operations modifying access for anonymous users, and registry changes to 'NullSessionShares' configurations.
Detects potential persistence and network persistence mechanisms associated with the MSP360 RMM agent. The rule correlates the creation of a Windows service for RMM.Agent.exe or RMM.Agent.Launcher.exe with the addition of a firewall rule allowing UDP traffic on port 48678 by netsh or PowerShell, occurring within a one-hour window.
Detects potential persistence and network persistence mechanisms associated with the MSP360 RMM agent. The rule correlates the creation of a Windows service for RMM.Agent.exe or RMM.Agent.Launcher.exe with the addition of a firewall rule allowing UDP traffic on port 48678 by netsh or PowerShell, occurring within a one-hour window.
Detects the specific behavior associated with the OnyxC2 C2 framework where a process re-spawns a child instance of itself, followed by a rapid registry modification by that child process. This pattern serves as a marker for the ONYXC2 loader configuration stage.
Detects multiple endpoints setting their desktop wallpaper to a common file located on a remote UNC path or containing 'sysvol'. This behavior is often indicative of GPO-based configuration for persistence or malware staging, where a malicious 'payload.jpg' is used as a cover or to deliver code via vulnerabilities in image parsing libraries.
Detects modifications to the Windows legal notice registry keys (legalnoticecaption, legalnoticetext) under the System policies registry hive. These keys are used to display a message to users during the login process, and are frequently abused by adversaries for persistence messaging, defacement, or to deliver payloads via social engineering.
Detects unauthorized modification or creation of registry keys under HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\ to maintain persistence for remote access/RMM tools during Safe Mode with Networking. This technique is used by Akira ransomware affiliates to evade EDR and security software.
This rule detects potentially malicious activity involving the execution of WSF scripts from the AppData directory, followed by registry modifications using reg.exe or rundll32.exe. Additionally, it monitors for the creation or presence of specific suspicious files (clspack.exe, filetext.txt, prnfig.wsf) in user profile directories, often indicative of staging or persistence.
Detects potential staging and execution chains involving remote MSI file fetching via msiexec.exe, or the execution of .wsf scripts or registry imports originating from or residing in AppData directories. This behavior is indicative of multistage malware delivery or persistence mechanisms where components are downloaded and executed using LOLBins.
Detects the creation of a local administrative account with a hidden naming convention (ending in $) accompanied by a cluster of registry modifications designed to obscure the account from the logon screen, enable WDigest plaintext credential caching, relax RDP authentication requirements (disable NLA, enable RDP), and disable UAC remote restrictions. This activity is highly indicative of post-exploitation persistence and credential harvesting configurations following initial access via SQL server exploitation.
Detects a suspicious process pattern where an executable running from a staging directory (Temp or Downloads) spawns a child process of itself, followed by a registry modification performed by that child process. This behavior is indicative of malicious loaders, such as OnyxC2, that sideload components and establish runtime configurations before C2 communication.
Detects modifications to the Windows Registry designed to disable PowerShell ScriptBlockLogging. This is a common defense evasion technique used by attackers to hide malicious PowerShell commands and scripts from security monitoring.
Detects attempts to disable or modify Windows Defender security features, such as Real-time Monitoring, Tamper Protection, or adding unauthorized exclusion paths via PowerShell cmdlets or direct registry modifications.
Detects the creation or modification of Registry keys within 'Image File Execution Options' (IFEO) intended to associate a debugger with security-critical or monitoring binaries (e.g., Sysmon, Filebeat). This technique is used for defense evasion and persistence by intercepting or preventing the execution of security tools.
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