Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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The following analytic detects the execution of the 'setcap' utility to enable the SUID bit on Linux systems. It leverages Endpoint Detection and Response (EDR) data, focusing on process names and command-line arguments that indicate the use of 'setcap' with specific capabilities. This activity is significant because setting the SUID bit allows a user to temporarily gain root access, posing a substantial security risk. If confirmed malicious, an attacker could escalate privileges, execute arbitrary commands with elevated permissions, and potentially compromise the entire system.
The following analytic detects the execution of "bcdedit.exe" with parameters to set the boot status policy to ignore all failures. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names and command-line arguments. This activity is significant because it can indicate an attempt by ransomware to prevent a compromised machine from booting into automatic repair mode, thereby hindering recovery efforts. If confirmed malicious, this action could allow attackers to maintain control over the infected system, complicating remediation and potentially leading to further damage.
This analytic identifies instances where `wmiprvse.exe` spawns `msbuild.exe`. This behavior is unusual and indicates potential misuse of a COM object or a Living Off The Land (LOLBAS) technique. `msbuild.exe` is typically spawned by `devenv.exe` during legitimate Visual Studio use, not by `wmiprvse.exe`. If confirmed malicious, this could indicate an attacker executing arbitrary code or scripts, potentially leading to system compromise or further malicious activities.
The analytic detects the execution of the Apache Benchmark binary (ab.exe), which is commonly used by MetaSploit payloads. It focuses on process creation events where the original file name is 'ab.exe'. This activity may indicate a MetaSploit attack, potentially leading to unauthorized network connections, system compromise, and data exfiltration. Immediate investigation is required.
The following analytic identifies 'netsh' processes that delete or modify firewall configurations. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on command-line executions containing specific keywords. This activity is significant because it can indicate malware, such as NJRAT, attempting to alter firewall settings to evade detection or remove traces. If confirmed malicious, this behavior could allow an attacker to disable security measures, facilitating further compromise and persistence within the network.
This analytic detects the deletion of registry keys by processes that are not typically associated with critical system or program files. This activity is significant as it may indicate malware, such as the Double Zero wiper, attempting to evade defenses or cause destructive payload impacts. If confirmed malicious, this behavior could lead to significant system damage, loss of critical configurations, and potential disruption of services.
The following analytic detects the modification of the Windows registry to disable the Notification Center on a host machine. It leverages data from the Endpoint.Registry data model, specifically looking for changes to the "DisableNotificationCenter" registry value set to "0x00000001." This activity is significant because disabling the Notification Center can be a tactic used by RAT malware to hide its presence and subsequent actions. If confirmed malicious, this could allow an attacker to operate stealthily, potentially leading to further system compromise and data exfiltration.
This analytic identifies suspicious child processes spawned by calc.exe, indicative of DLL side-loading techniques. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process GUIDs, names, and parent processes. This activity is significant as it is commonly associated with Qakbot malware, which uses calc.exe to load malicious DLLs via regsvr32.exe. If confirmed malicious, this behavior could allow attackers to execute arbitrary code, maintain persistence, and escalate privileges, posing a severe threat to the environment.
The analytic detects arbitrary command execution using Windows msdt.exe, a Diagnostics Troubleshooting Wizard. It identifies instances where msdt.exe is invoked via the ms-msdt:/ protocol handler to retrieve a remote payload. This activity indicates an exploitation attempt leveraging msdt.exe to execute arbitrary commands, potentially leading to unauthorized code execution. If confirmed malicious, this could allow an attacker to execute arbitrary code, escalate privileges, or persist within the environment, posing a severe security risk.
The following analytic detects the use of the findstr command to search for unsecured credentials in Group Policy Preferences (GPP). It leverages data from Endpoint Detection and Response (EDR) agents, focusing on command-line executions involving findstr.exe with references to SYSVOL and cpassword. This activity is significant because it indicates an attempt to locate and potentially decrypt embedded credentials in GPP, which could lead to unauthorized access. If confirmed malicious, this could allow an attacker to escalate privileges or gain access to sensitive systems and data within the domain.
The following analytic detects modifications in the Windows registry to disable Windows Error Reporting (WER) settings. It leverages data from the Endpoint.Registry datamodel, specifically monitoring changes to registry paths related to WER with a value set to "0x00000001". This activity is significant as adversaries may disable WER to suppress error notifications, hiding the presence of malicious activities. If confirmed malicious, this could allow attackers to operate undetected, potentially leading to prolonged persistence and further exploitation within the environment.
The following analytic identifies the execution of commonly used NirSoft utilities on Windows systems. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process execution details such as process name, parent process, and command-line arguments. This activity is significant for a SOC because NirSoft utilities, while legitimate, can be used by adversaries for malicious purposes like credential theft or system reconnaissance. If confirmed malicious, this activity could lead to unauthorized access, data exfiltration, or further system compromise.
This analytic identifies processes that retrieve information related to private key files, often used by post-exploitation tools like winpeas. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on command-line executions that search for private key certificates. This activity is significant as it indicates potential attempts to locate insecurely stored credentials, which adversaries can exploit for privilege escalation, persistence, or remote service authentication. If confirmed malicious, this behavior could allow attackers to access sensitive information, escalate privileges, or maintain persistence within the compromised environment.
The following analytic identifies the use of netsh.exe to configure a connection proxy, which can be leveraged for persistence by executing a helper DLL. It detects this activity by analyzing process creation events from Endpoint Detection and Response (EDR) agents, focusing on command-line executions involving "portproxy" and "v4tov4" parameters. This activity is significant because it indicates potential unauthorized network configuration changes, which could be used to maintain persistence or redirect network traffic. If confirmed malicious, this could allow an attacker to maintain covert access or manipulate network communications, posing a significant security risk.
The following analytic detects the execution of the reg.exe process with either the "save" or "export" parameters. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process execution logs and command-line arguments. This activity is significant because threat actors often use the "reg save" or "reg export" command to dump credentials or test registry modification capabilities on compromised hosts. If confirmed malicious, this behavior could allow attackers to escalate privileges, persist in the environment, or access sensitive information stored in the registry.
The following analytic detects the execution of `net.exe` with command-line arguments used to query elevated domain or sensitive groups. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names and command-line executions. This activity is significant as it indicates potential reconnaissance efforts by adversaries to identify high-privileged users within Active Directory. If confirmed malicious, this behavior could lead to further attacks aimed at compromising privileged accounts, escalating privileges, or gaining unauthorized access to sensitive systems and data.
The following analytic detects the execution of nslookup.exe to query domain information using LDAP. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on process names and command-line arguments. This activity is significant as nslookup.exe can be abused by malware like Qakbot to gather critical domain details, such as SRV records and server names. If confirmed malicious, this behavior could allow attackers to map the network, identify key servers, and plan further attacks, potentially leading to data exfiltration or lateral movement within the network.
The analytic detects suspicious processes spawned by WinRM (wsmprovhost.exe). It leverages data from Endpoint Detection and Response (EDR) agents, focusing on specific child processes like cmd.exe, powershell.exe, and others. This activity is significant as it may indicate exploitation attempts of vulnerabilities like CVE-2021-31166, which could lead to system instability or compromise. If confirmed malicious, attackers could execute arbitrary commands, escalate privileges, or maintain persistence, posing a severe threat to the environment.
The analytic detects an Eventvwr UAC bypass by identifying suspicious registry modifications in the path that Eventvwr.msc references upon execution. This activity indicates a potential privilege escalation attempt, allowing an attacker to execute arbitrary commands with elevated privileges. If confirmed malicious, this could lead to unauthorized code execution, persistence, and further compromise of the affected system.
The analytic detects the modification of a firewall rule to allow the execution of a specific application. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process creation events with command-line arguments related to firewall rule changes. This activity is significant as it may indicate an attempt to bypass firewall restrictions, potentially allowing unauthorized applications to communicate over the network. If confirmed malicious, this could enable an attacker to execute arbitrary code, escalate privileges, or maintain persistence within the target environment.
The analytic detects the execution of `powershell.exe` running the `Get-ADDefaultDomainPasswordPolicy` cmdlet. This cmdlet is used to retrieve the password policy in a Windows domain. Monitoring this activity is crucial as it can indicate attempts by adversaries to gather information about domain policies for situational awareness and Active Directory discovery. If confirmed malicious, this activity could lead to further reconnaissance and potential exploitation of domain security settings.
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