Detectors

Every Cortex detection rule the toolbox knows about — analytics alerts, BIOCs and correlation rules — in one filterable set.

1677 detectors match the current filters.

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Type Name Severity Module Data source / event ATT&CK
Analytics BIOC User account delegation change A user account was modified with delegation to a service. Informational Identity Analytics Windows Event Collector, XDR Agent with eXtended Threat Hunting (XTH) Persistence
BIOC User account flagged as hidden Look for unsigned processes that add an entry to the hidden users Registry key. Informational Platform Analytics Registry Defense Evasion
Analytics BIOC User added a new device to Okta Verify instance The user has successfully registered a new device with the Okta Verify application. Informational Identity Threat Detection (ITDR), SaaS Threat Detection Okta Audit Log Persistence
Analytics BIOC User added SID History to an account A user added SID history to an account. This may be indicative of a user's migration between domains or a SID injection attack. Informational Identity Analytics Windows Event Collector, XDR Agent with eXtended Threat Hunting (XTH) Privilege Escalation, Defense Evasion
Analytics User added to a group and removed A user was added to an Active Directory group and removed within a short period of time, which may be a sign of compromise. Informational Identity Analytics Windows Event Collector, XDR Agent with eXtended Threat Hunting (XTH) Persistence, Privilege Escalation
BIOC User added to local administrator group using a PowerShell command Adding a new user to the local admin group may or may not be malicious, but it is an outstanding action worth considering, as it shouldn't happen too often. A malware may add a new malicious user to the administrators group as a way of maintaining high privileges after the system was compromised. Medium Platform Analytics Process execution Persistence
Analytics User added to the SMS Admins local group A user was added to the SMS Admins local group. This may indicate a potential attack targeting the Microsoft Configuration Manager infrastructure. Low Identity Analytics Windows Event Collector, XDR Agent with eXtended Threat Hunting (XTH) Persistence, Privilege Escalation
Analytics User and Group Enumeration via SAMR The endpoint performed unfamiliar SAMR querying activity to a domain controller. Informational Platform Analytics XDR Agent with eXtended Threat Hunting (XTH) Discovery
Analytics BIOC User attempted to connect from a suspicious country A user connected from an unusual country. This may indicate the account was compromised. Informational Identity Analytics AzureAD, Azure SignIn Log, Idira, Duo, Okta, OneLogin, PingOne Credential Access, Resource Development
Analytics User collected remote shared files in an archive Multiple files from remote shares were archived in a local file. This may indicate collection of data and staging before exfiltration. Low Identity Threat Detection (ITDR) XDR Agent with eXtended Threat Hunting (XTH) Collection
BIOC User creation or modification via /etc file Attackers may create new users or modify existing users by directly modifying /etc/passwd and /etc/shadow. Informational Platform Analytics File Persistence
Analytics BIOC User discovery via WMI query execution Attackers or malware may use WMI queries to list the users of a host, and potentially its owner. Informational Platform Analytics XDR Agent with eXtended Threat Hunting (XTH) Execution, Discovery
Analytics User exported multiple messages in Microsoft Teams via Graph API A user exported multiple messages in Microsoft Teams via Graph API. Informational Identity Threat Detection (ITDR), SaaS Threat Detection Office 365 Audit Collection
Analytics BIOC User installed an application in Microsoft Teams via Graph API A user who rarely uses the Graph API to install Microsoft Teams applications has installed one using it. Informational Identity Threat Detection (ITDR), SaaS Threat Detection Microsoft Graph Logs Persistence
Analytics User moved Exchange sent messages to deleted items A user moved sent messages to deleted items in Exchange. Informational Identity Threat Detection (ITDR), SaaS Threat Detection, Email Security Office 365 Audit Defense Evasion
Analytics User sent messages in Microsoft Teams to multiple conversations via Graph API A user who rarely uses the Graph API for Microsoft Teams messaging sent multiple messages using it. Informational Identity Threat Detection (ITDR), SaaS Threat Detection Microsoft Graph Logs Lateral Movement
Analytics BIOC User set insecure CA registry setting for global SANs A user enabled the EDITF_ATTRIBUTESUBJECTALTNAME2 registry flag, allowing custom Subject Alternative Names (SANs) to be specified on all certificate templates. This could enable attackers to bypass security controls by requesting certificates with user-defined SANs. Low Identity Analytics XDR Agent with eXtended Threat Hunting (XTH) Defense Evasion
Analytics BIOC User signed in to an application via Power Automate for the first time A user signed in to an application via Power Automate for the first time. This may be indicative of a compromised account. Informational Identity Threat Detection (ITDR), SaaS Threat Detection AzureAD Initial Access, Exfiltration
BIOC VBScript execution from the command line Attackers may run VBScript code from the command line using signed processes such as Mshta. Informational Platform Analytics Process execution Execution
BIOC Virtual Directory configuration access via PowerShell PowerShell was used to dump Exchange Web Service (EWS) Virtual Directories, which may indicate malicious behavior, for example, SolarStorm campaign. Medium Platform Analytics Process execution Discovery
BIOC VirtualBox enumeration VBoxManage can be used to enumerate local VirtualBox machines. Informational Platform Analytics Process execution Discovery
Analytics BIOC VM Detection attempt A script has executed commands that can be used to detect VM environments. Informational Platform Analytics XDR Agent with eXtended Threat Hunting (XTH) Defense Evasion, Discovery
Analytics BIOC VM Detection attempt on Linux A Process executed a command and/or accessed a file that can be used to detect VM environments. Informational Platform Analytics XDR Agent Defense Evasion, Discovery
BIOC VMware enumeration attempt An attacker may check for virtualization by searching for local vmx (VMware configuration) files. Informational Platform Analytics Process execution Discovery
Analytics BIOC VPN access with an abnormal operating system A user accessed a VPN with an abnormal operating system. Informational Identity Analytics Palo Alto Networks Global Protect, Third-Party VPNs Initial Access
Analytics BIOC VPN login attempt by a honey user A VPN login attempt was made by a honey user, a decoy account created specifically to detect unauthorized access. This may indicate potential attacker activity. Low Identity Analytics Palo Alto Networks Global Protect, Third-Party VPNs Initial Access
Analytics VPN login Brute-Force attempt A user account failed to log in to a VPN service multiple times in a short time period. This may indicate a brute-force attack. Informational Identity Analytics Palo Alto Networks Global Protect, Third-Party VPNs Credential Access, Resource Development
Analytics BIOC VPN login by a dormant user A dormant user logged on to a VPN service after having been unused for a month or longer. This may indicate the account is misused by an attacker. Informational Identity Analytics Palo Alto Networks Global Protect, Third-Party VPNs Defense Evasion
Analytics BIOC VPN login by a service account A service account attempted to log in to a VPN service. Low Identity Analytics Palo Alto Networks Global Protect, Third-Party VPNs Initial Access
Analytics VPN Login Password Spray An abnormally high number of users failed to log in to a VPN service from an IP address within a short period of time. This may indicate a password spray attack. Informational Identity Analytics Palo Alto Networks Global Protect, Third-Party VPNs Credential Access
Analytics BIOC VPN login with a machine account A machine account successfully logged in to a VPN service. Informational Identity Analytics Palo Alto Networks Global Protect, Third-Party VPNs Initial Access
Analytics BIOC Vulnerable certificate template loaded A possible misconfigured certificate template was loaded by Certificate Services. This may indicate potential certificate template abuse. Informational Identity Analytics Windows Event Collector, XDR Agent with eXtended Threat Hunting (XTH) Credential Access
Analytics BIOC Wbadmin deleted files in quiet mode Wbadmin was used to delete files in quiet mode. High Platform Analytics XDR Agent Impact
Analytics BIOC Weakly-Encrypted Kerberos TGT Response A weakly encrypted Kerberos TGT was issued by a domain controller. The encryption type is abnormal for this DC and results in a TGT that is easier to crack. This behavior may indicate a Skeleton Key attack. Informational Platform Analytics Palo Alto Networks Firewall EAL Logs, XDR Agent Credential Access, Defense Evasion, Persistence
Analytics BIOC Weakly-Encrypted Kerberos Ticket Requested A user specifically requested weak and deprecated encryption in a Kerberos TGS request. This provides easy-to-crack hashes and is typically a sign of a Kerberoasting attack. Low Platform Analytics Palo Alto Networks Firewall traffic Logs, XDR Agent Credential Access
BIOC Web browser cookie and credential access Detect attempt to acquire cookies or credentials from a Safari browser. Informational Platform Analytics Process execution Credential Access
Analytics Web server CGO executed a process following a potential Webshell dropped A process was executed by a web server CGO following a potential drop of a webshell file. Informational Platform Analytics XDR Agent with eXtended Threat Hunting (XTH) Persistence
Analytics BIOC Web server CGO executed an uncommon process An uncommon process was executed by a web server CGO, which might indicate a Webshell activity or a web server exploit. Informational Platform Analytics XDR Agent Initial Access, Persistence
BIOC Web server process drops an executable to disk Web server processes should not normally write executable files out to the local filesystem. This may have legitimate uses in certain web applications, yet check for possible exploitation of the hosted web application. Informational Platform Analytics File Initial Access
BIOC Web server spawns an unsigned process Web server processes should normally only carry out tasks related to serving web applications. This instance has spawned an unsigned process, which may indicate a successful exploitation attempt of the associated web application. Informational Platform Analytics Process execution Initial Access
Analytics BIOC WebDAV drive mounted from net.exe over HTTPS Attackers may mount a WebDAV drive over HTTPS to upload files to and download files from a compromised machine. Informational Platform Analytics XDR Agent Exfiltration
Analytics BIOC Well-known brand in sender headers with header inconsistencies Sender headers include a well-known brand with header inconsistencies indicating possible impersonation. Informational Email Security Microsoft 365 Emails Defense Evasion
BIOC WerFault ReflectDebugger key set in Registry The WerFault.exe signed Windows process may be tricked into running a malicious executable by setting the ReflectDebugger key in the Registry. Medium Platform Analytics Registry Defense Evasion
BIOC Wget connection to an external network Wget is a command-line utility used to transfer data. Attackers may use wget to exfiltrate data outside your organization. Informational Platform Analytics Network Exfiltration
BIOC Windows 10 Developer Mode enabled Enabling developer mode allows for app sideloading and starts the Windows SSH services, which may be used to install Linux Bash on Windows. Informational Platform Analytics Registry Defense Evasion
Analytics BIOC Windows CGO, actor and action processes with anomalous characteristics Windows CGO, actor and action processes with anomalous characteristics. Informational Platform Analytics XDR Agent Execution
Analytics BIOC Windows CGO, actor process and action module with anomalous characteristics Windows CGO, actor process and action module with anomalous characteristics. Informational Platform Analytics XDR Agent Execution
Analytics BIOC Windows Event Log was cleared using wevtutil.exe A command-line utility was used to clear the Windows Event Log. It may be used to delete logs to cover the tracks of the malicious activity, making it harder to perform analysis. Low Platform Analytics XDR Agent Impact
BIOC Windows event logs cleared using wmic.exe Attackers may clear events from Windows event logs to remove traces of their malicious activity. Medium Platform Analytics Process execution Defense Evasion
Analytics BIOC Windows event logs were cleared with PowerShell Windows event logs were cleared or deleted with PowerShell. Informational Platform Analytics XDR Agent with eXtended Threat Hunting (XTH) Defense Evasion
BIOC Windows File Protection being disabled via Registry Windows File Protection (WFP) prevents programs from replacing critical Windows system files. Programs must not overwrite these files because they are used by the operating system and by other programs. Protecting these files prevents problems with programs and the operating system. Low Platform Analytics Registry Impact
BIOC Windows Firewall disabled via Registry An attacker may disable the Windows Firewall via the Registry to bypass network controls. Informational Platform Analytics Registry Defense Evasion
BIOC Windows Firewall notifications disabled via Registry These Registry keys control the Windows Firewall notifications. Malware may turn notifications off before editing the firewall settings. Informational Platform Analytics Registry Defense Evasion
BIOC Windows hosts file written to Check for hosts file redirection, overriding the system's default hosts file to manipulate DNS. Informational Platform Analytics File Collection
Analytics BIOC Windows Installer exploitation for local privilege escalation The Windows installer (msiexec.exe) was likely exploited to run a malicious rollback script (.rbs file) instead of the original. Users should not be able to modify config.msi during the installation process, only SYSTEM should have access to it. Medium Platform Analytics XDR Agent Privilege Escalation
Analytics BIOC Windows LOLBIN executable connected to a rare external host Scripts connecting to external IP addresses may be sanctioned IT scripts. However, when those external IP addresses are only receiving connections from a few specific endpoints in the organization, these scripts may be an indicator of more suspicious activity. Security testers and adversaries use offensive frameworks that employ forms of scripting which result in this type of network activity. Medium Platform Analytics XDR Agent Command and Control
BIOC Windows PowerShell Logging being disabled via Registry Tampering of the key can disable event logging by the PowerShell, allowing the adversary to evade being detected using PowerShell. Informational Platform Analytics Registry Defense Evasion
BIOC Windows process masquerading by an unsigned process A process is trying to disguise itself as a legitimate Windows process, but is unsigned. This usually indicates malicious activity. Informational Platform Analytics Process execution Defense Evasion
BIOC Windows Registry Editor being disabled via Registry Registry Editor may be enabled / disabled using this key. This could indicate either IT policy applied or malicious activity preventing the user from altering the Registry. Informational Platform Analytics Registry Defense Evasion
BIOC Windows Security audit log was cleared Event ID 1102 was generated when the Windows Security audit log was cleared. Attackers may clear events from Windows event logs to remove traces of their malicious activity. Informational Platform Analytics Windows event log Defense Evasion
BIOC Windows set to permit unsigned drivers (Test Mode) This host has been set into 'Test Mode' which allows loading of unsigned drivers. It has legitimate uses, but can be leveraged by malware to load malicious untrusted drivers. Medium Platform Analytics Process execution Defense Evasion
BIOC Windows Task Manager being disabled via Registry Task manager may be disabled to tamper with the user experience and with the response to a malicious incident. Informational Platform Analytics Registry Defense Evasion
BIOC WinPmem Forensics Tool The WinPmem Forensics Tool has been run. Informational Platform Analytics Process execution Collection, Credential Access
BIOC WMI access to shadow copy interface An attacker may be trying to modify and/or delete shadow copies via WMI for disabling system backups or extracting NTDS.dit. Informational Platform Analytics Process execution Credential Access, Impact
BIOC WMI terminated a process The Windows Management Instrumentation CLI killed another process running on the endpoint or on a remote host. Malware may do this to evade detection. Informational Platform Analytics Process execution Defense Evasion, Execution
Analytics BIOC WmiPrvSe.exe Rare Child Command Line A remote WMI command executed a binary proxy, the Windows Management Instrumentation (WMI) Provider Host wmiprvse.exe, which executed a rare child command line. Executing a rare child process can be an indication of remote code execution abuse by an attacker. Low Platform Analytics XDR Agent Lateral Movement, Execution
BIOC WptsExtensions.dll created to disk The Task Scheduler service attempts to load the missing WptsExtensions.dll. As a result, the creation of this file may be indicative of DLL hijacking. Medium Platform Analytics File Privilege Escalation
BIOC Write to .bash_profile Commands in ~/.bash_profile are executed on every user shell login with a username and password. Informational Platform Analytics File Persistence
BIOC Write to /etc/hosts file An attacker may add an entry to the hosts file, so they can route traffic to the added IP. Informational Platform Analytics File Discovery
BIOC Wscript / Cscript executed from a temporary directory An attacker may try to avoid detection by executing wscript/cscript scripts from a temporary directory. Informational Platform Analytics Process execution Collection
BIOC Wscript.exe connects to an external network It may be due to local IT or administrative tools used on endpoints, but it could also indicate exfiltration of data between hosts in the local network, malware droppers, beaconing and so on. The execution chain should be reviewed to determine the context of the activity. Informational Platform Analytics Network Execution
Analytics BIOC Wscript/Cscript loads .NET DLLs An unusual script loads .NET DLLs, possibly indicating JScriptToDotnet execution. Low Platform Analytics XDR Agent Defense Evasion
BIOC WSL Feature Installation Detecting installation of Windows Subsystem for Linux feature. Informational Platform Analytics File Defense Evasion
Analytics BIOC Wsmprovhost.exe Rare Child Process The PowerShell host wsmprovhost.exe is a proxy process executed remotely through PowerShell when using Windows Remote Management (WinRM). It has executed a rare child process, which may indicate remote code execution abuse by an attacker. Low Platform Analytics XDR Agent Lateral Movement, Execution
BIOC WSReset.exe UAC bypass Attackers may use WSReset.exe to bypass User Account Control (UAC). Low Platform Analytics Process execution Privilege Escalation
BIOC Wzzip.exe execution with password protection parameters Wzzip.exe was executed with parameters indicating password protection of the output file. Informational Platform Analytics Process execution Collection
Analytics BIOC X-Forefront-Antispam-Report has flagged this email as a potential threat This email has been categorized by X-Forefront-Antispam-Report as a threat, suggesting it is likely malicious in nature (e.g., spam, phishing, impersonation, etc.). Informational Email Security Microsoft 365 Emails Initial Access, Defense Evasion, Execution